Article
Energy & Fuels
Siming Huo, Jessie Lu, Xianqin Wang
Summary: This study synthesized Ni supported on multiwall nanotubes using the electrodeposition method for electrocatalytic CO2 reduction, finding that the drying time of the sample is critical for the oxidation of Ni and CO2RR activity. The study also demonstrated that small Ni clusters have higher current density than large nano particles.
ENERGY SCIENCE & ENGINEERING
(2021)
Article
Chemistry, Physical
Louis Godeffroy, Jean-Francois Lemineur, Viacheslav Shkirskiy, Mathias Miranda Vieira, Jean-Marc Noel, Frederic Kanoufi
Summary: This study investigates the microscale behavior of electrochemical interfaces by utilizing various microscopy techniques. By automatically identifying the physical and chemical characteristics of nanoparticles, the researchers reconstructed the overall electrochemical response. The research reveals that the activity of nickel metal in the electrocatalysis of hydrogen evolution reaction is comparable to that of platinum.
Article
Chemistry, Multidisciplinary
Soosan Hosseinmardi, Andreas Scheurer, Frank W. Heinemann, Karsten Kuepper, Laura Senft, Pablo Waldschmidt, Ivana Ivanovic-Burmazovic, Karsten Meyer
Summary: The synthesis and catalytic activity of various dicubanoid manganese clusters for water oxidation in basic, aqueous solution are investigated. Different polynuclear manganese complexes were prepared using pyridinemethanol-based ligands, showing a variety of manganese coordination species in solution. These complexes were then utilized to prepare electrode-deposited films for water oxidation electrocatalysis, with varying stabilities and activities observed.
Article
Environmental Sciences
Min Hong, Qinian Wang, Jun Sun, Chao Wu
Summary: This study reports a novel Cu-based electrode (IE-Cu-400) for the electrochemical reduction of nitrate (NO3-) with improved activity and selectivity compared to traditional Cu-based electrodes. The enhanced performance of IE-Cu-400 is attributed to its smaller particles, high oxidation state of copper (Cu2+ in CuO), increased number of active sites, improved adsorption and reduction ability for NO2-, increased surface area, and high density of grain boundaries. IE-Cu-400 also demonstrates high stability for the electrochemical reduction of nitrate.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Yu S. Yapontseva, T. Maltseva, V. S. Kublanovsky, O. A. Vyshnevskyi, Yu N. Troshchenkov
Summary: The electrodeposition of CoRe alloys from a citrate and a citrate-pyrophosphate electrolyte was studied. Coatings with different Re content and improved corrosion resistance were obtained. The CoRe alloys showed good electrocatalytic activity in the hydrogen evolution reaction and soft magnetic properties.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Peili Zhang, Tao Song, Dehua Zheng, Fusheng Li, Xiujuan Wu, Ke Fan, Licheng Sun
Summary: The NiFeBa material prepared by co-electrodeposition showed promising performance as an efficient catalyst for electrocatalytic water oxidation. The doped Ba ions played a crucial role in stabilizing the Ni3+ species and adjusting the catalytic mechanism, leading to an enhancement of catalytic efficiency and performance.
Article
Chemistry, Physical
Ruopeng Li, Qingyang Li, Lihui Xiao, Xinxin Bai, Shanshan Ji, Jinqiu Zhang, Maozhong An, Peixia Yang
Summary: In this study, amorphous CoSe2 ultrathin nanosheet arrays were electrodeposited and exhibited superior catalytic activity towards OER compared to their crystalline counterparts and commercial catalysts. When used as an air cathode in a zinc-air battery, the amorphous CoSe2 showed better performance and cyclic stability than crystalline CoSe2 and Pt/C-RuO2 electrodes. This work presents a new underpotential deposition strategy for fabricating high-activity amorphous catalysts with great potential for practical applications.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Physical
Meng Cao, Houyong Cao, Weichen Meng, Qingxiang Wang, Yi Bi, Xixi Liang, Haibo Yang, Lu Zhang, Ming-Fei Lang, Jing Sun
Summary: A new NiCuO flower-like nanostructure catalyst prepared by a fast and low-cost electrodeposition method shows significant efficiency for glucose electrooxidation and outstanding stability, making it a promising functional material for the construction of glucose fuel cells and other electrochemical devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Shunsuke Shiba, Ayaka Koike, Shota Takahashi, Dai Kato, Tomoyuki Kamata, Osamu Niwa
Summary: A method for the synthesis of highly oriented metallic heterodimer arrays on a metal nanoparticle-embedded carbon film using a selective electrodeposition technique is proposed. This method does not require the use of surfactants, capping agents, organic solvents, or heat treatment. Selective electrodeposition is achieved by utilizing the difference in electrodeposition overpotentials between carbon and Pd nanoparticle surfaces.
Article
Electrochemistry
Nikhil Dhabarde, Alyssa Ferrer, Prichard Mekani Tembo, Krishnan Selva Raja, Vaidyanathan Ravi Subramanian
Summary: Electrochemical production of H2O2 through the oxygen reduction reaction (ORR) offers an alternative to the energy-intensive anthraquinone process. A Nickel-Molybdenum-Tellurium (Ni-Mo-Te) film was electrodeposited on a fluorine-doped tin oxide (FTO) substrate, with the Te loading varied by changing the Te precursor concentration. The resulting film demonstrated a 4-fold increase in ORR activity, attributed to the increased number of Te sites facilitating electron transfer.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Applied
Roberto Fagotto Clavijo, Marta Riba-Moliner, Arantzazu Gonzalez-Campo, Jordi Sort, Eva Pellicer, Konrad Eiler
Summary: Highly porous Ni films were synthesized using custom-made PS-b-P4VP block copolymer micelles as a soft template. The Ni films exhibited large pores with diameters varying from 25 to 600 nm (1:1) and from 10 to 230 nm (1:4). Compared to dense Ni films and highly mesoporous Ni films with monodisperse 10 nm wide pores, the porous Ni films showed significantly improved electrocatalytic performance for hydrogen evolution reaction (HER) in alkaline media, with lower overpotential and better long-term stability.
Article
Chemistry, Analytical
Jun Sun, Xiaoqiang Zhang, Hengzhi Zhang, Guangyu Ruan, Xin Wang, Xiaohu Han, Mu Yuan, Taixi Wang, Han Xu, Chao Wu, Qinian Wang
Summary: A new carbon nanotubes-supported copper catalyst (IE-Cu/CNTs) for the electrocatalytic reduction of nitrate to ammonium/ammonia (ECRNA) is reported in this study. The IE-Cu/CNTs catalyst shows a smaller particle size of copper compared to traditional CNTs-supported copper catalysts. It exhibits an increased electrochemical surface area and improved electron transfer, leading to enhanced Cu utilization and ECRNA performance. Moreover, the IE-Cu/CNTs catalyst demonstrates high stability for ECRNA, and the mechanism is regulated by both direct electron transfer reduction and indirect atomic hydrogen reduction.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Lili Ren, Erwei Xie, Yonglian Qiao, Chen Liu, Xuefeng Zhang, Shilei Zhou, Zhongbao Feng
Summary: In this study, the Co0.85Se/rGO electrocatalyst with a nanoporous structure on rGO surface was synthesized via electrodeposition. Compared with Co0.85Se and nickel foam, Co0.85Se/rGO exhibited excellent performance for hydrazine oxidation. The enhanced electrochemical mechanism of Co0.85Se/rGO for hydrazine oxidation was mainly attributed to its well-maintained nanoporous structure, larger electrochemically active surface area, high electrical conductivity, and superaerophobic nature of nanoporous surface.
Article
Engineering, Environmental
Xingxin Liu, Luofu Min, Xiaoyan Yu, Zhuo Zhou, Li Sha, Shuting Zhang
Summary: The electrodeposition of beta-PbO2 into vertically arranged black titanium oxide nanoarrays (BTN) to prepare an electrode (Ti/BTN/beta-PbO2) for advanced oxidation treatment was investigated. The study found that Ti/BTN/beta-PbO2(5 s) showed the greatest photoelectrocatalysis, while Ti/BTN/beta-PbO2(30 min) demonstrated the best ability to degrade pollutants due to the presence of colloidal PbO(OH)2 generating electroreactive species. Additionally, the activity and stability of Ti/BTN/beta-PbO2 were attributed to the vertical electrons transfer channel provided by BTN and the interlocked structures formed between BTN and beta-PbO2.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Yan Shen, Pan Wu, Chun Wang, Wei Yuan, Wanliang Yang, Xiao Shang
Summary: In this work, highly porous three-dimensional binder-free amorphous structure NiFeO/NiMo nanospheres are synthesized on Ni foam by a simple and cost-effective two-step hydrothermal and electrodeposition processes, respectively. The porous NiFeO/NiMoO/NF electrode exhibits good long-term stability and high catalytic activity for the hydrogen evolution reaction in alkaline water electrolysis, showing excellent performance for hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
