Article
Nanoscience & Nanotechnology
Oren Elishav, David Stone, Anton Tsyganok, Swetha Jayanthi, David S. Ellis, Tamir Yeshurun, Itzhak I. Maor, Adar Levi, Vadim Beilin, Gennady E. Shter, Roie Yerushalmi, Avner Rothschild, Uri Banin, Gideon S. Grader
Summary: This study addresses the effect of particle size on charge transfer in hematite for photoelectrochemical water splitting. The researchers embedded hematite nanoparticles into an electrode substrate to improve contact and enhance performance. The use of nanofibers as a scaffold for the nanoparticles increased the optical density and improved the photocurrent density and photon-to-current internal conversion efficiency by factors of 2 and 10, respectively.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Wenjian Zou, Jiadong Xiang, Hao Tang
Summary: This study reports that adding Nb to CoP nanowires enhances their catalytic activities towards HER and OER, accelerating the reaction kinetics by optimizing hydrogen binding abilities and modulating surface electron densities. The Nb-doped CoP nanowires, used as cathode and anode in an alkaline electrolyzer, achieve high current density at low voltage for overall water splitting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Physical
Yiyue Zhai, Xiangrong Ren, Junqing Yan, Shengzhong (Frank) Liu
Summary: The review covers recent research advances of amorphous catalysts used in electrocatalytic water splitting, emphasizing their exceptional performance and application potential, as well as discussing the mechanism of water electrolysis and evaluation criteria for catalytic properties.
Article
Energy & Fuels
Detlef Bahnemann, Peter Robertson, Chuanyi Wang, Wonyong Choi, Helen Daly, Mohtaram Danish, Hugo de Lasa, Salvador Escobedo, Christopher Hardacre, Tae Hwa Jeon, Bupmo Kim, Horst Kisch, Wei Li, Mingce Long, M. Muneer, Nathan Skillen, Jingzheng Zhang
Summary: As nations transition towards low or net zero carbon economies due to global climate change, the need for practical alternative fuels is urgent. Hydrogen gas is considered one of the most desirable substitutes for traditional hydrocarbons, but obtaining "green" hydrogen from low or zero carbon footprint sources presents challenges. Research focuses on practical techniques for producing "green" hydrogen through photocatalytic or photoelectrocatalytic processes. However, the capability of this technology to produce hydrogen at scale has faced significant issues. This road map article explores various aspects of photocatalytic and photoelectrocatalytic hydrogen generation, including processes, materials science, reactor engineering, and biomass reforming applications.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Chemistry, Physical
Zhou Yang, Hanbing Chen, Meng Xiang, Chengbin Yu, Jia Hui, Shuang Dong
Summary: Water splitting for high-clean hydrogen energy is crucial. Coral reef-like Co(3)V(2)O(8 )nanoparticles exhibit low oxygen evolution reaction overpotential, good stability, fast kinetics for hydrogen evolution reaction, and small impedance. This novel nanomaterial electrocatalyst shows superior performance in overall water splitting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Hongshuai Cao, Zhibin Li, Ying Xie, Fang Xiao, Honglei Wang, Xiaoyan Wang, Kai Pan, Andreu Cabot
Summary: A layered bifunctional electrocatalyst CoP/NF was successfully prepared in this study, showing high performance in hydrogen production through water splitting. This finding offers a cost-effective and efficient electrode material for large-scale water splitting hydrogen production.
Article
Chemistry, Physical
Zhaolong Wang, Hanxiang Chen, Jian Bao, Yanhua Song, Xiaojie She, Guoai Lv, Jiujun Deng, Huaming Li, Hui Xu
Summary: The development of a bifunctional electrode material with amorphous NiFeMo films grown on a conductive nickel foam substrate has significantly improved the overall water splitting performance, allowing for efficient hydrogen production to alleviate carbon emissions.
APPLIED SURFACE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Xin Yang, Yan Liu, Ruike Guo, Jiafu Xiao
Summary: This article reviews the application of Ir coupled transition metal compound catalysts in driving electrochemical water splitting and discusses the significant role of Ir in promoting electrocatalytic performance, with an emphasis on correlating the structure-function relationships. The challenges and future directions for the fabrication of more advanced Ir coupled electrocatalysts are also presented.
Article
Chemistry, Multidisciplinary
Taotao Wang, Li Zhang, Jinbao Wu, Muqing Chen, Shangfeng Yang, Yalin Lu, Pingwu Du
Summary: This study demonstrates the interesting photocatalytic performance of few-layer fullerene network in pure water splitting, showing high evolution rates and stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Physical
Yuan Chu, Dan Wang, Xueling Shan, Changhai Liu, Wenchang Wang, Naotoshi Mitsuzaki, Zhidong Chen
Summary: This article introduces the reaction mechanisms and key performance parameters of water splitting, and summarizes the strategies to improve the performance of transition metal phosphide electrocatalysts. Further opportunities and challenges for TMPs are highlighted from the perspectives of theoretical calculation and practical application.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Huan Lou, Udo Schwingenschlogl, Guochun Yang
Summary: In this study, a two-dimensional catalyst FeC6N monolayer based on earth-abundant elements was designed. This catalyst showed high structural stability and inherent metallicity. It exhibited comparable catalytic activity to platinum in hydrogen evolution for water splitting, making it an ideal catalyst for alternative energy source.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Taotao Wang, Li Zhang, Jinbao Wu, Muqing Chen, Shangfeng Yang, Yalin Lu, Pingwu Du
Summary: A few-layer fullerene network has been found to exhibit interesting photocatalytic performance in pure water splitting without any sacrificial reagents. The H-2 and H2O2 evolution rates can reach 91 and 116 mu molg 1h (-1), respectively, under optimal conditions, showing good stability. This work demonstrates the novel application of the few-layer fullerene network in the field of energy conversion.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Yuying Yang, Haixia Meng, Chao Kong, Weixia Ma, Hong Zhu, Fuquan Ma, Chengjuan Wang, Zhongai Hu
Summary: The study presents the design and fabrication of Fe-doped CoP 1D hollow nano-needles on carbon cloth, which demonstrate good electrocatalytic activity for hydrogen evolution reaction. The Fe-CoP@CC nanoneedles show potential to serve as an efficient catalyst for overall water splitting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Materials Science, Multidisciplinary
Hainan Sun, Xiaomin Xu, Hyunseung Kim, Zongping Shao, Woochul Jung
Summary: This review presents the latest progress in the identification of unconventional active sites in electrochemical water splitting. The use of advanced characterization techniques and theoretical calculations has revealed novel and unusual active sites, providing valuable guidance for the design of advanced electrocatalysts.
Article
Chemistry, Multidisciplinary
Fiorella Lucarini, David Bongni, Philippe Schiel, Gabriele Bevini, Elisabetta Benazzi, Euro Solari, Farzaneh Fadaei-Tirani, Rosario Scopelliti, Marco Marazzi, Mirco Natali, Mariachiara Pastore, Albert Ruggi
Summary: Four novel polypyridine cobalt(II) complexes were developed with either electron-withdrawing (-CF3) or electron-donating (-OCH3) groups in different positions of the ligand. The results showed that the position of the substituent, rather than the type, played a dominant role in promoting catalysis. The best performances were observed with substituents on the pyridine moiety of the ligand, leading to the formation of Co(II)H intermediate through intramolecular proton transfer reactions with low activation energy.
Article
Chemistry, Multidisciplinary
Shaowen Cao, Han Li, Tong Tong, Hsiao-Chien Chen, Anchi Yu, Jiaguo Yu, Hao Ming Chen
ADVANCED FUNCTIONAL MATERIALS
(2018)
Article
Chemistry, Physical
Xuemei He, Fan Yang, Shuang Li, Xiaoxiao He, Anchi Yu, Jinquan Chen, Jianhua Xu, Jianping Wang
JOURNAL OF PHYSICAL CHEMISTRY A
(2019)
Article
Chemistry, Physical
Yongchang Guo, Fan Yang, Xuan Zheng, Jialun Tang, Haizheng Zhong, Anchi Yu, Jianping Wang, Bingsuo Zou
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2019)
Article
Materials Science, Multidisciplinary
Zhitong Ge, Anchi Yu, Rong Lu
Article
Materials Science, Multidisciplinary
Manlin Chen, Rong Lu, Anchi Yu
Article
Chemistry, Physical
Shuang Song, Xin Zou, Yuna Kang, Xing Ji, Rong Lu, Anchi Yu
Summary: Graphitic carbon nitride related materials are promising photocatalysts. Understanding their genuine charge carrier kinetics is important for their photocatalytic applications. Two samples with different termination/functionalization groups were synthesized and studied using single-color and two-color femtosecond pump-probe experiments. The results showed that the charge carrier kinetics of CN and NCN should be measured under very low pump fluence, and higher pump fluence would introduce a short picosecond component due to carrier-carrier interactions. The derived absorption cross section of CN and NCN at pump wavelength were also determined. Overall, this study provides insights into the charge carrier kinetics of CN and NCN and their photocatalytic activities.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Xing Ji, Rong Lu, Anchi Yu
Summary: A systematic understanding of carrier dynamics in lead halide perovskite nanocrystals is crucial for improving their performance. Recent research has focused on the influence of the A-site cation on photophysical processes and biexciton dynamics. Experimental analysis reveals that changing the A-site cation affects the spectra and biexciton behavior, resulting in shorter biexciton Auger recombination lifetime and higher biexciton binding energy.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Xue Han, Yuna Kang, Shuang Song, Rong Lu, Anchi Yu
Summary: Highly crystalline Na+-doped GCN (GCN-Na) and NH4Cl-assisted Na+-doped GCN (GCN-Na-NH4Cl) were synthesized, showing significantly enhanced photocatalytic hydrogen evolution (PHE) rate compared to pristine GCN under visible light irradiation. The short lifetime of photogenerated electrons in GCN-Na and GCN-Na-NH4Cl indicates their efficient electron utilization. The study also reveals the importance of crystallinity and the presence of shallow-trap sites for the improved PHE activity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Chengyu Peng, Rong Lu, Anchi Yu
Summary: Graphitic carbon nitride (GCN) has been extensively studied as a promising photocatalyst, but its performance is still lacking. Metal ion doping has been proven to enhance the photocatalytic activity of GCN, and in this study, K+-doped GCN samples were prepared at different temperatures. The introduction of K+ improved the crystallinity of GCN at higher temperature, but reduced it at lower temperature. FTIR and SEM-EDS measurements showed that K+ predominantly distributed on the surface of the lower temperature sample, while it was found both on the surface and in the bulk of the higher temperature sample. The higher crystallinity of K+-doped GCN resulted in a higher H-2 evolution rate under visible light irradiation. This work provides insight for optimizing metal ion doped GCN with high photocatalytic activity.
Article
Chemistry, Multidisciplinary
Zengyu Cen, Yuna Kang, Rong Lu, Anchi Yu
Summary: The treatment of potassium-doped CN with H2O2 can enhance its light absorption ability and improve the degradation of organic pollutants in photocatalytic reactions under visible light irradiation.
Article
Chemistry, Multidisciplinary
Siyu Hu, Anchi Yu, Rong Lu
Summary: This study prepared Na-doped and K-doped graphitic carbon nitride (GCN), and found that K had a stronger influence on the structure variation of GCN and interacted more strongly with GCN. Both Na and K could improve the photocatalytic activity of GCN, but K doping caused more significant changes, leading to a significant increase in the H-2 evolution rate.
Article
Chemistry, Multidisciplinary
Weili Wang, Yifei Kong, Jun Jiang, Xin Tian, Shuang Li, Uchangi Satyaprasad Akshath, Christian Tiede, Nicole Hondow, Anchi Yu, Yuan Guo, Dejian Zhou
Article
Chemistry, Physical
Cao Dandan, Lu Rong, Yu Anchi
ACTA PHYSICO-CHIMICA SINICA
(2019)
