Review Articles
Recent advances in anisotropic two-dimensional materials and device applications
Jinlai Zhao1,2,3, Dingtao Ma2, Cong Wang1, Zhinan Guo1,*, Bin Zhang1, Jianqing Li2, Guohui Nie1, Ni Xie1,*, and Han Zhang1,*
1 Shenzhen University, China
2 Macau University of Science and Technology, Macau, China
3 Guangdong Research Center for Interfacial Engineering of Functional Materials, China
This review aimed to give a generalized knowledge of anisotropic two-dimensional (2D) materials and their current devices applications, thus inspiring the exploration and development of other kinds of new anisotropic 2D materials and various novel device applications.
897–919
Recent advances in engineered nanomaterials for acute kidney injury theranostics
Lefeng Wang1,2, Yunjing Zhang1, Yangyang Li1,*, Jianghua Chen1,2,*, and Weiqiang Lin1,*
1 Zhejiang University, China
2 Key Laboratory of Kidney Disease Prevention and Control Technology, China
Nanomaterials that are applied in the molecular imaging system provide a novel detection approach for acute kidney injury (AKI). Antioxidant nanomaterials can protect the kidneys against excess reactive oxygen species (ROS)-induced oxidative stress in AKI.
920–933
Single metal atom decorated photocatalysts: Progress and challenges
Lei Zeng and Can Xue*
Nanyang Technological University, Singapore
This mini review summarizes recent progress on single metal atom decorated photocatalysts, and discusses the roles of the single metal atom catalysts in different types of host photocatalysts including organic, carbon-based and inorganic materials.
934–944
Research Articles
Geometrical quasi-ballistic effects on thermal transport in nanostructured devices
Sami Alajlouni1,*, Albert Beardo2,*, Lluc Sendra2, Amirkoushyar Ziabari3,4, Javier Bafaluy2, Juan Camacho2, Yi Xuan1, F. Xavier Alvarez2, and Ali Shakouri1
1 Purdue University, USA
2 Universitat Autonoma de Barcelona, Spain
3 Oak Ridge National Laboratory, USA
4 R&D Staff Scientist, Imaging, Signals and Machine Learning, USA
The impact of nanoscale heat source geometry on the surrounding temperature distribution on silicon substrate is studied experimentally and theoretically at room temperature. It is shown that a hydrodynamic heat transport model, with geometry-independent parameters, allows modeling all the presented data.
945–952
Rational design of novel ultra-small amorphous Fe2O3 nanodots/graphene heterostructures for all-solid-state asymmetric supercapacitors
Chenxiao Wu1,2, Zhifang Zhang3, Zhonghui Chen2,*, Zuimin Jiang3, Huiyu Li1, Haijing Cao1, Yongsheng Liu1, Yanyan Zhu1,*, Zebo Fang4, and Xiangrong Yu5,*
1 Shanghai University of Electric Power, China
2 Henan University, China
3 Fudan University, China
4 Shaoxing University, China
5 Jinan University, China
A novel ultra-small amorphous Fe2O3 nanodots/graphene heterostructure (a-Fe2O3 NDs/RGO) aerogel was exquisitely designed for advanced flexible all-solid-state asymmetric supercapacitors.
953–960
Nanovilli electrode boosts hydrogen evolution: A surface with superaerophobicity and superhydrophilicity
Yijun Yin, Yan Tan, Qiuyuan Wei, Shucong Zhang, Siqi Wu, Qin Huang, Feilong Hu*, and Yan Mi*
Guangxi University for Nationalities, China
A nanovilli Ni2P electrode, which with superaerophobic and superhydropholic can significantly facilitate the mass and electron transfer was constructed via a facial morphology control strategy. With the substitution of sluggish oxygen evolution by urea oxidation, lowering the two-electrode cell voltage to only 1.48 V achieved a current density of 10 mA·cm−2. The as-designed electrode achieves the expectant AA-battery-driven hydrogen evolution, shedding light on the hydrogen generation by using intermittent clean energy.
961–968
Tea stain-inspired solar energy harvesting polyphenolic nanocoatings with tunable absorption spectra
Lu Yang1, Yuan Zou1, Wei Xia1, Haotian Li1, Xinyu He1, Yi Zhou1, Xianhu Liu2, Chaoqun Zhang3,4, and Yiwen Li1,*
1 Sichuan University, China
2 Zhengzhou University, China
3 South China Agricultural University, China
4 Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, China
Inspired by the formation of tea stains, a unique class of dark stain materials generated by the interfacial reaction between tea polyphenols and metal substance, we reported the facile preparation and screening of a series of photothermal nanocoating layers via the metal ion (i.e., Cu(II), Fe(III), Ni(II), Zn(II)) promoted in situ polymerization of typical phenolic moieties of tea polyphenols (i.e., catechol and pyrogallol). We further fabricated the photothermal composite devices by in situ formation of metal-polyphenolic nanocoatings on pristine silks for solar desalination, which demonstrated promising durable evaporation behaviors with excellent evaporation rates and steam generation efficiencies.
969–975
Suppression of leakage current in carbon nanotube field- effect transistors
Lin Xu, Chenguang Qiu, Lian-mao Peng*, and Zhiyong Zhang*
Peking University, China
A carbon nanotube field-effect transistor (CNT FET) with a novel L-shaped spacer is proposed, and this structure helps suppress the gate-induced drain leakage and provides scaling flexibility. Our TCAD simulation results show that the L-shaped-spacer device’s off-state current is about two orders of magnitudes lower than that of the normal spacer and then meet the standby power requirement in standard-performance digital integrated circuits.
976–981
Enhanced photoresponse of TiO2/MoS2 heterostructure phototransistors by the coupling of interface charge transfer and photogating
Bingxu Liu1, Yinghui Sun1,*, Yonghuang Wu2, Kai Liu2, Huanyu Ye1, Fangtao Li1, Limeng Zhang1, Yong Jiang3, and Rongming Wang1,*
1 University of Science and Technology Beijing, China
2 Tsinghua University, China
3 University of Science and Technology Beijing, China
The TiO2/MoS2 heterostructure phototransistor fabricated by interfacing few-layer MoS2 with an ultrathin TiO2 layer shows an enhanced responsivity compared with pure MoS2 device.
982–991
Double diamond structured bicontinuous mesoporous titania templated by a block copolymer for anode material of lithium-ion battery
Qingqing Sheng1, Qian Li1, Luoxing Xiang1, Tao Huang1, Yiyong Mai1,*, and Lu Han2,*
1 Shanghai Jiao Tong University, China
2 Tongji University, China
A mesoporous titania scaffold with a shifted double diamond structure is synthesized by co-assembly of block copolymer and titanium source. The bicontinuous mesoporous titania is used as an anode material of lithium-ion battery and exhibits a high specific capacity of 254 mAh·g−1 at the current density of 1 A·g−1 and a self-improving feature upon charge/discharge over 1,000 cycles.
992–997
Single copper sites dispersed on hierarchically porous carbon for improving oxygen reduction reaction towards zinc-air battery
Wenjie Wu1, Yan Liu2, Dong Liu3, Wenxing Chen4, Zhaoyi Song1, Ximin Wang1, Yamin Zheng2, Ning Lu2, Chunxia Wang1,*, Junjie Mao2,*, and Yadong Li5
1 China University of Petroleum, China
2 Anhui Normal University, China
3 Beijing University of Chemical Technology, China
4 Beijing Institute of Technology, China
5 Tsinghua University, China
An atomically dispersed CuN3 sites anchored on N-doped three-dimensional hierarchically carbon catalyst is prepared by coordinate pyrolysis strategy, which shows excellent performance towards electrochemical oxygen reduction reaction.
998–1003
High power and stable P-doped yolk–shell structured Si@C anode simultaneously enhancing conductivity and Li+ diffusion kinetics
Ming Chen1, Qinnan Zhou1, Jiantao Zai1,*, Asma Iqbal1, TsegayeTadesse Tsega1, Boxu Dong1, Xuejiao Liu1, Yuchi Zhang1, Changyu Yan1, Liang Zhao1, Ali Nazakat1, SharelPeisan E2,3, CheeTongJohn Low2,*, and Xuefeng Qian1,*
1 Shanghai Jiao Tong University, China
2 University of Warwick, UK
3 Teesside University, UK
Besides the long cycle stability (1,005 mAh·g−1 at 4 A·g−1 after 800 cycles), P-doped yolk–shell structured Si@C electrode achieves excellent rate performance (510 mAh·g−1 at 35 A·g−1) owing to simultaneously enhanced conductivity and Li+ diffusion kinetics. The obtained anode can efficiently promote the power density of lithium ion capacitor with active carbon (51 Wh·kg−1 at ~ 61,080 W·kg−1).
1004–1011
Strong electron-ion coupling in gradient halide perovskite heterojunction
Hongye Chen, Liaoyu Wang, Chun Shen, Jiahuan Zhang, and Wanlin Guo*
Nanjing University of Aeronautics and Astronautics, China
Here, strong electron-ion coupling is observed in a planar gradient MAPbIxBr3−x heterojunction film. The diode-like halide migration is demonstrated by asymmetric variation of photoluminescence shift controlled by external electric field. This special halide migration is driven by the coupling of gradient electrons and halides which inspires new semiconductor iontronic devices.
1012–1017
β-Cyclodextrin polymer networks stabilized gold nanoparticle with superior catalytic activities
Yong Zhang1,*, Bing Hu1, Xiao-Mei Cao1, Liang Luo1, Yu Xiong3, Zhi-Peng Wang2, Xin Hong1, and San-Yuan Ding2,*
1 Gannan Normal University, China
2 Lanzhou University, China
3 Tsinghua University, China
β-Cyclodextrin based polymer networks (β-CDPs) were developed for Au nanoparticle immobilization, which exhibited superior catalytic activity (Kapp = 14.15 × 10–2 s–1) for the reduction of 4-nitrophenol.
1018–1025
Observing antimicrobial process with traceable gold nanoclusters
Kaiyuan Zheng1, Magdiel I. Setyawati2, David Tai Leong1,*, and Jianping Xie1,*
1 National University of Singapore, Singapore
2 Nanyang Technological University, Singapore
The unique luminescent gold nanoclusters (Au NCs) are designed as traceable antimicrobial agents for real-time observation of the interaction with bacteria. The Au NCs first adsorb on the bacterial membrane, and then internalize and accumulate inside the bacteria, generating reactive oxygen species (ROS) and damaging the bacterial membrane, which finally lead to bacterial contents leakage and bacterial death.
1026–1033
Efficient fully blade-coated perovskite solar cells in air with nanometer-thick bathocuproine buffer layer
Sergio Castro-Hermosa1,2,3,*, Luana Wouk1, Izabela Silva Bicalho1, Luiza de Queiroz Corrêa1, Bas de Jong4,5, Lucio Cinà4, Thomas M. Brown2, and Diego Bagnis1,*
1 CSEM Brasil, Brazil
2 University of Rome Tor Vergata, Rome, Italy
3 Universidad Surcolombiana, Colombia
4 Cicci Research srl, Italy
5 University of Siena, Italy
Fully air-printed perovskite solar cell (PSC) incorporated a nanometer- thick blade coated bathocuproine (BCP) buffer layer (indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/CH3NH3PbI3/[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/BCP/Ag). The BCP layer was blade coated for the first time being also printed in humid air (relative humidity < 50%), and PSCs delivered a power conversion efficiency (PCE) of 14.9% proving its compatibility with sheet-to-sheet (S2S) or roll-to-roll (R2R).
1034–1042
Facile fabrication of highly conductive, waterproof, and washable e-textiles for wearable applications
Ben Niu, Su Yang, Tao Hua*, Xiao Tian, and MingKin Koo
The Hong Kong Polytechnic University, Hong Kong, China
A highly conductive, stable and waterproof electronic textile is developed mainly by bioinspired chemical deposition of silver nanoparticles on cotton fabric, showing great potential for wearable applications.
1043–1052
Multivalent Sn species synergistically favours the CO2-into- HCOOH conversion
Jun Wu1, Xue Bai2, Zhiyu Ren2,*, Shichao Du2, Zichen Song1, Lei Zhao2, Bowen Liu2, Guiling Wang1,*, and Honggang Fu2,*
1 Harbin Engineering University, China
2 Heilongjiang University, China
Multivalent Sn species synergistically energize the CO2 activation, the HCOO* adsorption, and the electron transfer, which make Sn/SnO/SnO2 favour the conversion from CO2 into HCOOH in both thermodynamics and kinetics.
1053–1060
2D interspace confined growth of ultrathin MoS2-intercalated graphite hetero-layers for high-rate Li/K storage
Yang Li1, Song Jiang1, Yong Qian1, Xuedong Yan2,3, Jie Zhou1, Zheng Yi1, Ning Lin1,*, and Yitai Qian1,*
1 University of Science and Technology of China, China
2 Ningbo Polytechnic, China
3 Ningbo Veken Battery Co.Ltd, China
A two-dimensional (2D) interspace-confined methodology is introduced for fabricating MoS2-intercalated graphite (G-MoS2) hetero-layers composite via sulfuring the stage-1 MoCl5-graphite intercalation compound (MoCl5-GIC). Benefiting from the hetero- layered structure, G-MoS2 exhibits excellent rate performance when it is used as anode for lithium ion battery and potassium ion battery.
1061–1068
Fe atoms anchored on defective nitrogen doped hollow carbon spheres as efficient electrocatalysts for oxygen reduction reaction
Panpan Su1,2, Wenjuan Huang1,2, Jiangwei Zhang2, Utsab Guharoy2,3, Qinggang Du1,2, Qiao Sun3, Qike Jiang2,3, Yi Cheng4,5, Jie Yang1,*, Xiaoli Zhang6, Yongsheng Liu1, San Ping Jiang5, and Jian Liu2,5,7,*
1 Shanghai University of Electric Power, China
2 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China
3 Soochow University, China
4 Central South University, China
5 Curtin University, Australia
6 Zhengzhou University, China
7 University of Surrey, UK
Iron-nitrogen/defect configuration embedded in hollow carbon spheres (Fe-ND/C) shows superior oxygen reduction reaction (ORR) activity than that of iron-nitrogen sites (Fe-N/C). Density functional theory calculation demonstrates that Fe-ND/C with proposed coordination structure of FeN4−x (0 < x < 4) anchored by OH as axial ligand during ORR, weakens the strong binding of OH* and promotes the desorption of OH*, thereby enhances the ORR activity in alkaline electrolyte.
1069–1077
Mechanosynthesis of polymer-stabilized lead bromide perovskites: Insight into the formation and phase conversion of nanoparticles
Guocan Jiang1, Onur Erdem2, René Hübner4, Maximilian Georgi1, Wei Wei1, Xuelin Fan1, Jin Wang5, Hilmi Volkan Demir2,3, and Nikolai Gaponik1,*
1 Technische Universitat Dresden, Germany
2 Bilkent University, Turkey
3 Nanyang Technological University, Singapore
4 Institute of Ion Beam Physics and Materials Research, Germany
5 Zhejiang Normal University, China
Polymer-stabilized lead bromide perovskites with excellent durability and resistance to methanol are prepared by mechanical ball milling. We provide an insight into the formation and phase conversion of nanoparticles during the grinding process.
1078–1086
In situ self-assembly of near-infrared-emitting gold nanoparticles into body-clearable 1D nanostructures with rapid lysosome escape and fast cellular excretion
Kui He, Jiayi Zhu, Lingshan Gong, Yue Tan, Huarui Chen, Huarun Liang, Baihao Huang, and Jinbin Liu*
South China University of Technology, China
A facile strategy is reported for in situ self-assembly of near-infrared-emitting gold nanoparticles into well-controlled one-dimensional (1D) nanostructure with synergetic enhancements in emission, lysosome escape and delivery efficiency using a well-designed fibrous cyclopeptide as template, which are clearable via both renal and hepatic metabolic pathways. This strategy provides a promising approach in fabricating multifunctional 1D nanovectors toward future clinical translation.
1087–1094
Hetero-phase MoC-Mo2C nanoparticles for enhanced photocatalytic H2-production activity of TiO2
Jinfeng Liu1, Ping Wang1,*, Jiajie Fan2, Huogen Yu1,*, and Jiaguo Yu1
1 Wuhan University of Technology, China
2 Zhengzhou University, China
The carbon-coated hetero-phase molybdenum carbide (MoC- Mo2C@C) with a small size (ca. 5 nm) was controllably formed and evenly loaded on the TiO2 surface to prepare highly efficient TiO2/MoC-Mo2C@C photocatalysts and its highest H2-production rate was 91.8, 2.7, and 1.5 times than that of the TiO2, TiO2/MoC@C, and TiO2/Mo2C@C, respectively. The enhanced H2-evolution rate attributes to the synergetic effect of carbon layer and hetero-phase MoC-Mo2C.
1095–1102
Ambipolar two-dimensional bismuth nanostructures in junction with bismuth oxychloride
Xianzhong Yang, Shengnan Lu, Jun Peng, Xiangchen Hu, Nan Wu, Congcong Wu, Chao Zhang, Yifan Huang, Yi Yu, and Hung-Ta Wang*
ShanghaiTech University, China
A coherent chemical vapor transport process is demonstrated to simultaneously synthesize ambipolar conducting bismuth (Bi) nanoflakes, bismuth oxychloride (BiOCl) nanosheets, and Bi-BiOCl heterostructures.
1103–1109
Superhydrophobic, photo-sterilize, and reusable mask based on graphene nanosheet-embedded carbon (GNEC) film
Zezhou Lin1, Zheng Wang2, Xi Zhang1,*, and Dongfeng Diao1
1 henzhen University, China
2 Shenzhen Anhio Medical Technology Co., Ltd, China
A superhydrophobic, photo-sterilize, and reusable mask based on graphene nanosheet-embedded carbon (GNEC) film was reported, with high-density edges of standing structured graphene nanosheets serving as electron trapping centers.
1110–1115
Dimethylammonium iodide stabilized bismuth halide perovskite photocatalyst for hydrogen evolution
He Zhao1, Kalyani Chordiya2,3, Petri Leukkunen1, Alexey Popov1,†, Mousumi Upadhyay Kahaly2,3, Krisztian Kordas1,*, and Satu Ojala1,*
1 University of Oulu, Finland
2 ELI-ALPS, ELI-HU Non-Profit Ltd., Hungary
3 University of Szeged, Hungary
† Present address: VTT Technical Research Centre of Finland, Finland
Bismuth halide perovskite [(CH3)2NH2]3[BiI6] is stabilized in acid-free aqueous dimethylammonium iodide (DAI) solution by controlling the concentration of I− ions via a surface dissolution–recrystallization process. Photocatalytic oxidation of I− ions over[(CH3)2NH2]3[BiI6] and H2 evolution from HI-splitting using PtCl4 as a cocatalyst are achieved in aqueous DAI solution under visible light irradiation without degradation.
1116–1125
Colloidal lead-free Cs2AgBiBr6 double perovskite nanocrystals: Synthesis, uniform thin-film fabrication, and application in solution-processed solar cells
Razi Ahmad1,4, Gautam Virender Nutan1, Dinesh Singh1, Govind Gupta1, Udit Soni2, Sameer Sapra3, and Ritu Srivastava1,*
1 CSIR-National Physical Laboratory, India
2 TERI School of Advanced studies, India
3 Indian Institute of Technology Delhi, India
4 Palacky University Olomouc, Czech Republic
Lead-free Cs2AgBiBr6 double perovskite (DP) nanocrystals (NCs) with enhanced chemical and colloidal stability were synthesized. Using layer-by-layer solid-state ligand exchange technique, a compact and crack-free thin film of Cs2AgBiBr6 NCs was fabricated and utilized as an absorber layer in lead-free perovskite solar cells.
1126–1134
Hierarchical structures hydrogel evaporator and superhydrophilic water collect device for efficient solar steam evaporation
Wenwei Lei1,2, Sovann Khan2, Lie Chen1, Norihiro Suzuki2, Chiaki Terashima2,*, Kesong Liu1,*, Akira Fujishima2, and Mingjie Liu1,*
1 Beihang University, China
2 Tokyo University of Science, Japan
The hierarchical structures hydrogel evaporator provided an effective light trapping and increased photothermal conversion efficiency. Integrated with excellent photothermal conversion hydrogel and superhydrophilic window equipment, this work provides support for efficient evaporation and desalination of hydrogel-based solar evaporators in practical large-scale photothermal applications.
1135–1140
Pulsed laser reshaping and fragmentation of upconversion nanoparticles – from hexagonal prisms to 1D nanorods through 「Medusa」-like structures
Laszlo Sajti1, Denis N. Karimov2, Vasilina V. Rocheva2, Nataliya A. Arkharova2, Kirill V. Khaydukov2, Oleg I. Lebedev3, Alexey E. Voloshin2, Alla N. Generalova2, Boris N. Chichkov4, and Evgeny V. Khaydukov2,5,*
1 Austrian Institute of Technology GmbH, Austria
2 Russian Academy of Sciences, Russia
3 Universite Caen, France
4 Universitat Hannover, Germany
5 State Medical University, Russia
Controlled dynamic nanoscale recrystallization from three-dimensional (3D) to one-dimensional (1D) luminescent upconversion structures through extraordinary 「Medusa」-like particles under ps-laser treatment was designed. New approach looks promising for the engineering of dielectric nanoobjects, opening unique opportunities for nano-to-nano transformations.
1141–1148
Heterogeneous lamellar-edged Fe-Ni(OH)2/Ni3S2 nanoarray for efficient and stable seawater oxidation
Baihua Cui1,2, Zheng Hu2, Chang Liu2, Siliang Liu2, Fangshuai Chen2, Shi Hu4, Jinfeng Zhang2, Wei Zhou2, Yida Deng2, Zhenbo Qin2, Zhong Wu2,*, Yanan Chen2,*, Lifeng Cui1,*, and Wenbin Hu2,*
1 Dongguan University of Technology, China
2 Tianjin University, China
The heterogeneous Fe-Ni(OH)2/Ni3S2@NF has high activity, stability, and selectivity for seawater oxidation, owing to the introduction of preferable Fe sites and largely exposed lamellar edges via electrodeposition.
1149–1155
Visualizing nonlinear resonance in nanomechanical systems via single-electron tunneling
Xinhe Wang1,2, Lin Cong2, Dong Zhu3, Zi Yuan2, Xiaoyang Lin1, Weisheng Zhao1, Zaiqiao Bai4, Wenjie Liang5, Ximing Sun2, Guang-Wei Deng3,6,*, and Kaili Jiang2,*
1 Beihang University, China
2 Tsinghua University, China
3 University of Science and Technology of China
4 Beijing Normal University, China
5 Institute of Physics, Chinese Academy of Sciences, China
6 University of Electronic Science and Technology of China, China
In large amplitude regimes, the mechanical resonance of carbon nanotubes induces the synchronous oscillation of quantum dot states. Conversely, the vibration amplitude versus frequency can be directly visualized by detecting the single electron tunneling current.
1156–1161
Layer-dependent charge density wave phase transition stiffness in 1T-TaS2 nanoflakes evidenced by ultrafast carrier dynamics
Rui Wang1,*, Junbo Zhou1,4, Xinsheng Wang1, Liming Xie1,4,*, Jimin Zhao2,3,4,*, and Xiaohui Qiu1,4,*
1 National Center for Nanoscience and Technology, China
2 Institute of Physics, Chinese Academy of Sciences, China
3 Songshan Lake Materials Laboratory, China
4 University of Chinese Academy of Sciences, China
We used time-resolved spectroscopy to study the layer-dependent charge density wave phase transition in 1T-TaS2, and observed small phase transition stiffness in thin nanoflakes.
1162–1166
pH-mediated synthesis of monodisperse gold nanorods with quantitative yield and molecular level insight
Reese Gallagher, Xing Zhang, Anthony Altomare, David Lawrence Jr., Nicholas Shawver, Ninh Tran, Melanie Beazley*, and Gang Chen*
University of Central Florida, USA
In this work, we have solved the long-standing common problem in seeded growth of gold nanorods (GNRs) for simultaneous control on the quality and the quantity; we have also provided a new perspective to the growth mechanism.
1167–1174
A robust bifunctional catalyst for rechargeable Zn-air batteries: Ultrathin NiFe-LDH nanowalls vertically anchored on soybeanderived Fe-N-C matrix
Meng Zhang1, Jiting Zhang1, Siyi Ran1, Lingxi Qiu1, Wei Sun2,*, Ying Yu1,*, Jisheng Chen1, and Zhihong Zhu1,*
1 Central China Normal University, China
2 Hainan Normal University, China
Ultrathin NiFe layered double hydroxide (NiFe-LDH) nanosheets were vertically anchored on soybean-derived Fe-N-C substrate as a robust bifunctional catalyst in rechargeable Zn-air battery. The key role of N defects and oxygen-containing functional groups on the structure–activity relationship toward both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is intensively investigated through ultrasound-assisted extraction technique, which would expand the utilization of earthabundant biomaterial-derived catalysts in next-generation reversible energy conversion systems.
1175–1186
Synthesis of CsPbX3 (X = Cl/Br, Br, and Br/I)@SiO2/PMMA composite films as color-conversion materials for achieving tunable multi-color and white light emission
Varnakavi Naresh1,*, Byung Hyo Kim2, and Nohyun Lee1,*
1 Kookmin University, Republic of Korea
2 Soongsil University, Republic of Korea
Blue-green-red emitting all-inorganic CsPbX3 (X = Cl/Br, Br and Br/I) perovskite nanocrystals (PNCs)@SiO2/poly(methylmethacrylate) (PMMA) composite films displayed improved stability and exceptional photoluminescence quantum yield (PLQY) with longer lifetimes inhibiting anion exchange. The white light-emitting diode (LED) unit built using PNCs composite films as down-converting materials showed bright white luminescence and achieved wide color gamut of 121.47% of the National Television Standard Committee (NTSC) and 98.56% of Rec. 2020.
1187–1194
Integrated hetero-nanoelectrodes for plasmon-enhanced electrocatalysis of hydrogen evolution
Wenyu Jiang1,2, Xianxin Wu1,2, Jinquan Chang1,2, Yanhong Ma1, Luting Song1, Zhexue Chen1,2, Cheng Liang1,2, Xinfeng Liu1,2, and Yong Zhang1,2,*
1 National Center for Nanoscience and Technology, China
2 University of Chinese Academy of Sciences, China
The as-produced Au-Au-MoS2 segmented nanorod arrays represent the integrated hetero-nanoelectrodes with plasmon-enhanced, light- controlled electrocatalysis towards hydrogen evolution reaction (HER).
1195–1201
Hydrophobic ionic liquid-in-polymer composites for ultrafast, linear response and highly sensitive humidity sensing
Xuanliang Zhao1, Kanglin Zhou1, Yujia Zhong1, Peng Liu1, Zechen Li1, Jialiang Pan1, Yu Long2, Meirong Huang1, Abdelrahman Brakat1, and Hongwei Zhu1,*
1 Tsinghua University, China
2 University of California, USA
Hydrophobic ionic liquid-in-polymer composites are developed for ultrafast, linear response and highly sensitive humidity sensing.
1202–1209
Broadband and sensitive two-dimensional halide perovskite photodetector for full-spectrum underwater optical communication
Dejian Yu, Fei Cao, Yu Gu, Zeyao Han, Jiaxin Liu, Bo Huang, Xiaobao Xu*, and Haibo Zeng*
Nanjing University of Science and Technology, China
Judiciously designed two-dimensional halide perovskites with intrinsic water resistance and broadband response are obtained via synergetic composition modulation and dimensionality engineering. High-performance and extremely stable device performance is thereby enabled for full-spectrum underwater optical communication.
1210–1217
Fabrication of Fe nanocomplex pillared few-layered Ti3C2Tx MXene with enhanced rate performance for lithium-ion batteries
Pengfei Huang, Shunlong Zhang, Hangjun Ying, Wentao Yang, Jianli Wang, Rongnan Guo, and Weiqiang Han*
Zhejiang University, China
Cetyltrimethylammonium bromide (CTAB) pre-pillaring and Fe3+ pillaring method is developed for the synthesis of Fe nanocomplex pillared few-layered Ti3C2Tx (FPTC). The FPTC heterostructures exhibit enhanced rate performance with 310 mAh·g−1 after 850 cycles at 5 A·g−1 owing to excellent charge transfer kinetics and good structural stability.
1218–1227
Synthesis of graphene quantum dots for their supramolecular polymorphic architectures
Weifeng Chen, Guo Lv, Qiyun Zhou, Jialu Shen, Jie Cao, Xiang Liu*, and Zhongxu Dai*
Three Gorges University, China
The graphene quantum dots (GQDs) are synthesized from the new precursor m-trihydroxybenzene, and a strategy for designing the supramolecular structures of GQDs is demonstrated.
1228–1231