Article
Chemistry, Applied
Wen Zhang, Meng Tian, Haimiao Jiao, Hai-Ying Jiang, Junwang Tang
Summary: In this work, a highly-matched BiVO4/WO3 nanobowl photoanode was constructed and further modified to enhance its photocurrent density and photoelectrochemical performance. The photocurrent density was increased by about 5-fold compared to pristine BiVO4, achieving a faradaic efficiency of approximately 95%.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Dan Yin, Xingming Ning, Qi Zhang, Peiyao Du, Xiaoquan Lu
Summary: Researchers successfully constructed an integrated photoanode by modifying BiVO4 with In2O3 layer and further decorating amorphous FeNi hydroxides, improving its performance significantly. The BV/In/FeNi photoanode showed a remarkable increase in photocurrent density and water oxidation reaction kinetics. This improvement was attributed to the formation of BV/In heterojunction inhibiting charge recombination and the decoration of FeNi facilitating the water oxidation reaction kinetics and hole transfer.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Qinghua Yi, Shan Cong, Hao Wang, Xinjie Zhou, Jianmei Chen, Ke Li, Yushen Liu, Jong-Min Lee
Summary: A composite catalyst of NiTiO3-coated TiO2 nanorod arrays was reported to enhance photoelectrochemical performance by enlarging absorption range and enhancing electron-hole separation efficiency. This heterostructure engineering strategy demonstrated significant improvement in photocurrent density when used as an electrode in photoelectrochemical water splitting, showing potential for optimizing various semiconductor photocatalysts.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Palyam Subramanyam, Bhagatram Meena, Duvvuri Suryakala, Challapalli Subrahmanyam
Summary: The BiVO4/Bi-Cu nanocomposite photoanode exhibits high photocurrent density and solar-to-hydrogen conversion efficiency, along with excellent long-term stability and low charge transfer resistance. The introduction of Bi-Cu ANPs enhances light absorption and charge transportation in the photoanode, providing a superior PEC performance for hydrogen generation.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Engineering, Environmental
Yichun Lou, Dong Qiu, Shengpeng Chen, Haoyu Chen, Linrui Wang, Zixiang Hao, Chengli He, Yang Chen, Xiaoli Cui
Summary: In this study, a Bi2MoO6/TiO2 heterojunction was constructed to broaden light absorption and accelerate oxidation kinetics, leading to highly effective water splitting. The Bi2MoO6/TiO2 heterojunction exhibited significantly higher photocurrent density and better electron transfer properties compared to pristine TiO2, promoting the separation of electron-hole pairs. This work provides a novel strategy for TiO2-based heterojunction with great potential for photoelectrochemical water splitting applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Zhiming Zhou, Jinjin Chen, Qinlong Wang, Xingxing Jiang, Yan Shen
Summary: This study investigates the improvement of photoelectrochemical (PEC) activity of bismuth vanadate (BiVO4) photoanode by decorating its surface with cobalt sulfide (CoS). The fabricated CoS/BiVO4 photoanode exhibits significantly enhanced photocurrent density, charge injection yield, and charge separation efficiency compared to pristine BiVO4.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Huili Guo, Jian Zuo, Xin Su, Shu Chen, Rongjin Zeng, Jie Zhang, Heping Yang, Canjun Liu
Summary: In this study, an in-situ surface nanoetching method was used to increase the surface area of WO3 nanosheet array film, leading to higher photocurrent density. This research provides a simple and effective method to further increase the surface area of nanoarray photoelectrodes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Nanoscience & Nanotechnology
Xinyu Wang, Yubo Lei, Yuying Gao, Xinyi Yun, Zenglin Wang, Fengtao Fan, Yi Ma
Summary: In this study, a hierarchical network structure of NF/N/BVO photoanode was successfully constructed, which improved the water oxidation kinetics and charge separation efficiency by introducing a nickel layer and NiFe-LDH nanosheets, resulting in a significantly higher photocurrent density.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yuhei Taga, Zhenhua Pan, Kenji Katayama, Woon Yong Sohn
Summary: Developing an efficient photoanode is crucial for sustainable hydrogen energy production. By constructing a solid-state junction and applying an inverse opal structure, a BiVO4/WO3-IO photoanode was developed and demonstrated better performance in photoelectrochemical water splitting compared to a bare WO3 photoanode. This successful combination provides a promising approach for utilizing solar energy in visible-light-responsive photoanodes.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Yan Li, Qiong Mei, Zejun Liu, Xingsheng Hu, Zhaohui Zhou, Jingwei Huang, Bo Bai, Hui Liu, Fei Ding, Qizhao Wang
Summary: In this study, the performance of WO3 as a photoanode was improved by doping with F and preparing F:FeOOH/BiVO4/WO3 composite photoanodes. The composite photoanodes exhibited significantly enhanced photocurrent and showed good stability and electron lifetime. Additionally, F-doped FeOOH showed better catalytic performance than FeOOH. This work may have important implications for the application of photocatalysts in PEC water splitting.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Zhenhua Pan, Vikas Nandal, Yuriy Pihosh, Tomohiro Higashi, Tian Liu, Jason A. Roehr, Kazuhiko Seki, Chiheng Chu, Kazunari Domen, Kenji Katayama
Summary: This study reveals the influence of surface energetics on the performance of a Mo-doped BiVO4 photoanode, and finds that photodeposition of cocatalysts can significantly enhance charge separation efficiency and injection efficiency for water oxidation.
Article
Chemistry, Physical
Shrinath Dattatray Ghadge, Moni K. Datta, Oleg Velikokhatnyi, Prashant N. Kumta
Summary: This study presents a simple and effective Mo doping approach for generating high-performance photoanodes for PEC water splitting. Mo doping can enhance light absorption ability, reduce band gap, increase carrier density and photocurrent density, while also decreasing charge transfer resistance and improving PEC stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Mingyu Xia, Xiaolong Zhao, Ci Lin, Wending Pan, Yingguang Zhang, Zhengxiao Guo, Dennis Y. C. Leung
Summary: This study reports a morphology engineering strategy to fabricate terrace-like tungsten oxide (TW) film and evaluates its high-voltage performance as a photoanode for photoelectrochemical (PEC) water splitting. Terrace-like WO3 films show higher photoelectrochemical performance compared to porous WO3 films due to their more regular nanostructure, smaller band gap, faster charge-transfer rate, and reduced recombination rate.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Physics, Applied
Yuli Ma, Yun Hang Hu
Summary: Surface Cu2+ dopants on WO3 photoanodes, created using a simple hydrothermal method, significantly improve the interface charge transfer efficiency and act as adsorption and activation sites for intermediate species, decreasing Gibbs free energy and enhancing the oxygen evolution reaction activity. This leads to a 600% increase in incident-photon-to-current conversion efficiency under specific light irradiation and bias conditions.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Haimei Wang, Yuguo Xia, Ning Wen, Zhan Shu, Xiuling Jiao, Dairong Chen
Summary: Regulating the surface states distribution on the photoanode/electrolyte interface is crucial to photoelectrochemical water splitting. The development of a CdIn2S4/InOx/NiFe-LDH adaptive junction improves PEC performance and stability, with experimental characterizations showing the influence of interfacial structural regulation on surface states distribution and charge carrier density.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
