Article
Chemistry, Multidisciplinary
Chandan Kumar Tiwari, Shubasis Roy, Tal Tubul-Sterin, Mark Baranov, Nitai Leffler, Mu Li, Panchao Yin, Alevtina Neyman, Ira A. A. Weinstock
Summary: The use of hexaniobate cluster-anions can inhibit the growth of metal-oxide nanocrystals and stabilize them as water-soluble complexes. This method allows for the formation of metal-oxide nanocrystals with quantum-confinement effects, which exhibit attractive size-dependent properties for applications in electronic devices and catalysis. The findings suggest that polyoxoniobate-ligand entrapment could be a general method for harnessing the size-dependent properties of very small semiconductor nanocrystals as the cores of versatile, entirely-inorganic complexes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Lu Li, Zhilin Zheng, Jiaxing Li, Yongbiao Mu, Yameng Wang, Zebing Huang, Yiping Xiao, Haitao Huang, Shuai Wang, Gao Chen, Lin Zeng
Summary: The electrospun nickel-substituted La0.5Sr0.5Fe1-xNixO3-delta (ES-LSFN-x) porous perovskite nanofibers have larger specific surface area, higher porosity, and faster mass transfer, which can reduce bubble overpotential and enhance electrochemical performance.
Article
Nanoscience & Nanotechnology
Long Chen, Wenzhang Li, Weixin Qiu, Gaoshuang He, Keke Wang, Yang Liu, Qing Wu, Jie Li
Summary: Modulating the exposed facets of copper tungstate films can enhance the photoelectrochemical properties, resulting in improved charge transport, reduced recombination of electrons and holes, promoted oxygen evolution reaction, and better stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jooyoung Lee, Hyeonjung Jung, Yoo Sei Park, Nayoung Kwon, Seongwon Woo, N. Clament Sagaya Selvam, Gill Sang Han, Hyun Suk Jung, Pil J. Yoo, Sung Mook Choi, Jeong Woo Han, Byungkwon Lim
Summary: Developing high-efficiency and cost-efficient electrodes for hydrogen and oxygen evolution reactions is a major challenge in water electrolysis technology. A chemical transformation route was developed to produce high-performance OER and HER electrodes, which outperformed most other catalysts reported to date. An alkaline water electrolyzer based on these electrodes achieved a current density of 10 mA/cm(2) at an only 1.47 V-cell, while an anion exchange membrane water electrolyzer reached a current density of 500 mA/cm(2) at an only 1.75 V-cell.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Sumaira Manzoor, Sergei V. Trukhanov, Mohammad Numair Ansari, Muhammad Abdullah, Atalah Alruwaili, Alex V. Trukhanov, Mayeen Uddin Khandaker, Abubakr M. Idris, Karam S. El-Nasser, Taha AbdelMohaymen Taha
Summary: In this study, a flowery-shaped In2MnSe4 nanoelectrocatalyst was synthesized on nickel foam for the oxygen evolution reaction (OER). The synthesized material exhibited superior performance with high stability for a long time, making it suitable for various applications in the future.
Article
Green & Sustainable Science & Technology
Malarkodi Duraivel, Saravanan Nagappan, Kandasamy Prabakar
Summary: The study shows that NO3- intercalation alters the surface and electronic structure of the iron hydrogen phosphate catalyst, thereby enhancing the oxygen evolution reaction and hydrogen evolution reaction. This intercalation enhances the wetting properties of the catalyst and improves the contact between the electrode and electrolyte, leading to enhanced mass transfer capability.
Article
Chemistry, Inorganic & Nuclear
Jianbo Liang, Hang Zu, Huiling Si, Yanhong Ma, Mengyao Li
Summary: In this study, a hybrid layered cobalt hydroxide sample was synthesized and its redox behaviors in the electrochemical oxygen evolution reaction (OER) were investigated. The hybrid sample exhibited promising catalytic activity with an overpotential as low as 410 mV in 1 M KOH. In situ Raman spectroscopy revealed the structural evolution of the sample during the OER, indicating the formation of Co(iii)-based phases and their conversion into Co(iv)-O intermediates. The preference for topotactic phase transition and different activities of Co-Oh and Co-Td units were observed in the electrochemical reaction.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Yuling Wei, Leshuang Wang, Changlong Chen
Summary: Yttrium doped ZnO nanorod array films grown hydrothermally on fluorine doped tin oxide substrates exhibit enhanced photoelectrochemical water splitting performance, attributed to improved light absorption, increased conductivity, and prolonged carrier lifetime caused by yttrium doping. The yttrium doped samples show higher photocurrent density under illumination compared to undoped samples, making them promising platforms for various photocatalytic applications beyond photoelectrochemical water splitting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hafiza Komal Zafar, Manzar Sohail, Ayman Nafady, Kostya Ken Ostrikov, Geoffrey Will, Md A. Wahab, Anthony P. O'Mullane
Summary: The use of fossil fuels poses a threat to the Earth's climate and its inhabitants. Photoelectrochemical water splitting has emerged as a promising solution to produce oxygen and hydrogen in a cost-effective and environmentally friendly manner. This study presents the development of S-doped Cu3Se2 thin films using a chemical bath deposition process to enhance PEC water oxidation efficiency.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Tao Wang, Xiaoli Fan, Bin Gao, Cheng Jiang, Yang Li, Peng Li, Songtao Zhang, Xianli Huang, Jianping He
Summary: In this study, CuWO4-based films were prepared using a one-step hydrothermal method, leading to CuWO4/WO3 heterojunctions with urchin-like nanoarray morphology. The optimized film exhibited significantly improved photoelectrochemical performance due to its unique structure and efficient charge separation.
Article
Materials Science, Multidisciplinary
John D. Rodney, S. Deepapriya, M. Cyril Robinson, S. Jerome Das, Suresh Perumal, Periyasamy Sivakumar, Hyun Jung, Byung Chul Kim, C. Justin Raj
Summary: Electrochemical water splitting is a promising technique for generating clean hydrogen fuel. The study developed a bi-layered anode with dysprosium doped copper oxide for Oxygen Evolution Reaction. The anode exhibited superior activity in real seawater electrolyte without chloride corrosion.
APPLIED MATERIALS TODAY
(2021)
Article
Nanoscience & Nanotechnology
Yanita Devi, Po-Jen Huang, Wen-Tai Chen, Ren-Huai Jhang, Chun-Hu Chen
Summary: Using acidic redox-assisted deposition (ARD), we successfully fabricated a strongly adherent cobalt manganese oxyhydroxide (CMOH) film on Ni foam under ambient conditions in water. We converted CMOH into a metallic form (CM) with preserved high adhesion and used it as a high-current hydrogen evolution electrocatalyst. This method solved the insufficient adhesion problem of powder forms electrocatalysts at high-current electrolysis (>1000 mA). The achieved result of stable alkaline electrolysis at 5000 mA sets a new benchmark record in high-current water splitting research.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Tao Sun, Zhiyuan Tang, Wenjie Zang, Zejun Li, Jing Li, Zhihao Li, Liang Cao, Jan Sebastian Dominic Rodriguez, Carl Osby M. Mariano, Haomin Xu, Pin Lyu, Xiao Hai, Huihui Lin, Xiaoyu Sheng, Jiwei Shi, Yi Zheng, Ying-Rui Lu, Qian He, Jingsheng Chen, Kostya S. Novoselov, Cheng-Hao Chuang, Shibo Xi, Xin Luo, Jiong Lu
Summary: Heterogeneous single-atom spin catalysts combined with magnetic fields have been designed for accelerated chemical reactions. A hydrothermal approach was used to synthesize single-atom spin catalysts with various substitutional magnetic atoms in a MoS2 host. The Ni-1/MoS2 catalyst with a distorted tetragonal structure showed global room-temperature ferromagnetism, and the addition of a mild magnetic field significantly enhanced the oxygen evolution reaction magnetocurrent, leading to excellent activity and stability in water splitting cells.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Jiayi Tang, Xiaomin Xu, Tony Tang, Yijun Zhong, Zongping Shao
Summary: This study demonstrates that versatile perovskite-based oxides can be developed into low-cost, highly active, and durable electrocatalysts for high current density water splitting, which is of great importance for large-scale hydrogen production.
Article
Chemistry, Physical
Yizhen Wang, Yingying Jiao, Junchao Qin, Jianshe Wang
Summary: In this work, a one-step strategy was explored for the preparation of holey carbon nitride nanosheets (HCNS) by using melamine and copper oxide. The thermal polymerization of melamine led to the decomposition of released ammonia by copper oxide, resulting in the preparation of HCNS. The filled copper oxide also effectively decomposed ammonia and improved the photocatalytic activity of carbon nitride.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiujuan Wu, Yimeng Zhao, Tongyu Xing, Peili Zhang, Fusheng Li, Husileng Lee, Fei Li, Licheng Sun
Article
Chemistry, Multidisciplinary
Xiujuan Wu, Tongyu Xing, Yimeng Zhao, Husileng Lee, Peili Zhang
Article
Energy & Fuels
Xiujuan Wu, Xingqiang Wu, Husileng Lee, Qilun Ye, Xiaoxiao Wang, Yimeng Zhao, Licheng Sun
Article
Chemistry, Multidisciplinary
Lee Husileng, Wu Xiujuan, Sun Licheng
Article
Chemistry, Multidisciplinary
Qilun Ye, Xiyan Hou, Husileng Lee, Hongzhen Liu, Liangjie Lu, Xiujuan Wu, Licheng Sun
Article
Chemistry, Physical
Xingqiang Wu, Husileng Lee, Hongzhen Liu, Liangjie Lu, Xiujuan Wu, Licheng Sun
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Multidisciplinary
Xiujuan Wu, Liangjie Lu, Hongzhen Liu, Lu Feng, Weijia Li, Licheng Sun
Summary: Metal telluride nanocatalysts have been widely used in catalysis, but there are limited examples of their application in electrocatalytic water oxidation. In this study, Te-doped Fe-based catalysts were successfully synthesized using chemical vapor deposition and electrodeposition methods, with the latter showing better electrocatalytic performance in alkaline electrolyte. The electrochemical study confirmed that the residual Te in the electrodeposited FeTex played a role in promoting the catalytic activity for electrocatalytic water oxidation.
Article
Chemistry, Inorganic & Nuclear
Ximeng Xu, Yingzheng Li, Chang Liu, Peili Zhang, Ke Fan, Xiujuan Wu, Yu Shan, Fusheng Li
Summary: A molecular dye and a molecular catalyst were loaded onto the surface of a mesoporous LaFeO3 (LFO) film via layer-by-layer assembly. This assembly relied on the coordination of phosphates and Zr4+. The (NiP-4 + PQA-6)@LFO photocathode, after assembling six layers of the dye and four layers of the catalyst, exhibited a significant photocurrent for light-driven H-2 generation.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Multidisciplinary
Husileng Lee, Xiujuan Wu, Licheng Sun
Article
Chemistry, Multidisciplinary
Husileng Lee, Xiujuan Wu, Xingqiang Wu, Xiaoxiao Wang, Qilun Ye, Licheng Sun
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Inorganic & Nuclear
Fusheng Li, Ziqi Zhao, Hao Yang, Dinghua Zhou, Yilong Zhao, Yingzheng Li, Wenlong Li, Xiujuan Wu, Peili Zhang, Licheng Sun
DALTON TRANSACTIONS
(2020)
Article
Chemistry, Multidisciplinary
Fusheng Li, Rui Xu, Chengming Nie, Xiujuan Wu, Peili Zhang, Lele Duan, Licheng Sun
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Husileng Lee, Xiujuan Wu, Qilun Ye, Xingqiang Wu, Xiaoxiao Wang, Yimeng Zhao, Licheng Sun
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Husileng Lee, Xiujuan Wu, Xiaonan Yang, Licheng Sun
