Article
Chemistry, Inorganic & Nuclear
Grzegorz Matyszczak, Aleksandra Fidler, Krzysztof Krawczyk, Pawel Jozwik, Jakub Nawala
Summary: The study demonstrates the catalytic activity of Ag2S in forming larger single crystals of CdS. Ag2S was not found in the formed crystals, indicating its role as a strong catalyst of crystal growth. This highlights the importance of Ag2S in promoting the formation of CdS crystals.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Physical
Dhandayuthapani Thiyagarajan, Arun Thirumurugan, Bong -Kee Lee
Summary: In this study, nickel sulfide@cobalt iron-molybdenum oxide (NiS@CoFeMoO4) nanosheet heterostructures supported on nickel foam were fabricated. The as-built NiS@CoFeMoO4/NF with a sheet-on-sheet morphology delivered a current density of 10 mA cm-2 with a low overpotential of 72 and 200 mV for the hydrogen evolution and oxygen evolution reactions, respectively. The formation of a synergistic heterostructure between NiS and CoFeMoO4/NF via interfacial engineering facilitated the generation of a micro-mesoporous surface and modulation of the charge density at interfaces. Consequently, this configuration outperformed many non-precious-metal-based catalysts as an electrocatalyst for water oxidation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Xue Dong, Yanqing Jiao, Ganceng Yang, Haijing Yan, Aiping Wu, Dezheng Guo, Yu Wang, Chungui Tian, Honggang Fu
Summary: In this study, one-dimensional cobalt sulfide and vanadium sulfide heterojunction nanowires were constructed on carbon cloth as bifunctional electrocatalysts for efficient overall water splitting. The heterojunctions possessed large surface area, abundant active sites, and rapid electron/reactants transport, leading to low overpotentials and high Faradaic efficiencies. This design highlights the potential of 1D sulfide heterojunctions for developing highly efficient electrocatalysts for water splitting.
SCIENCE CHINA-MATERIALS
(2021)
Article
Chemistry, Physical
Yuying Yang, Haixia Meng, Shaohui Yan, Hong Zhu, Weixia Ma, Chengjuan Wang, Fuquan Ma, Zhongai Hu
Summary: Developing high-efficiency, stable, and cost-effective non-noble metal-based bifunctional electrocatalysts is crucial for clean hydrogen energy production. Nanoarray structures electrocatalysts have attracted increasing research interests due to their structural advantages. Specific Ni3S2/Fe9S10@NF catalyst exhibited excellent catalytic activities towards hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), showing great potential for electrocatalytic water splitting applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Physical
Yixin Chen, Yansheng Fan, Zhiqiang Cui, Haiming Huang, Dongming Cai, Jun Zhang, Yuan Zhou, Miao Xu, Rui Tong
Summary: Hydrogen, a sustainable and high-energy-density green energy, can be produced through electrochemical water splitting (EWS). Noble metal electrocatalysts have shown excellent activity in EWS, but their limited availability and high cost have prompted the exploration of non-noble metal alternatives. Nickel sulfide electrocatalysts, with their unique 3D structure, good conductivity, and adjustable electronic structure, have demonstrated significant activity in hydrogen and oxygen evolution reactions (HER and OER).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Licheng Huang, Ruiqi Yao, Zili Li, Jiaxin He, Yingqi Li, Hongxiang Zong, Shuang Han, Jianshe Lian, Yang-Guang Li, Xiangdong Ding
Summary: Transition metal-based nanomaterials have high potential as electrocatalysts for alkaline water splitting. In this study, a one-step sulfidation method was used to prepare highly efficient electrocatalysts by incorporating Mn and Zn into FeMnZn multi-metal skeletons. The optimized FMZS2 catalyst exhibited superior electrocatalytic performance for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) compared to Pt/C and IrO2 catalysts, respectively. Furthermore, the assembled alkaline electrolyzer showed better overall water splitting capability than noble metal ones.
Article
Engineering, Environmental
Yiming Xie, Bo Zhao, Kai Tang, Wei Qin, Changhui Tan, Junjie Yao, Youyong Li, Lin Jiang, Xianfu Wang, Yinghui Sun
Summary: Interface engineering through multishell hollow structures has been demonstrated to effectively enhance the electrocatalytic activities of NiFeOP nanoheterostructures. The fabricated NiFeOP nanoheterostructure exhibits superior electrocatalytic performance for both hydrogen and oxygen evolution reactions in alkaline solution, attributed to the rich nano interfaces and nanopores in the heterostructure. This strategy provides a promising template for future catalyst design and performance improvements.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Deviprasath Chinnadurai, Rajmohan Rajendiran, Prabakar Kandasamy
Summary: In this study, a bimetallic copper nickel sulfide electrocatalyst was successfully synthesized using a one-step chemical bath deposition (CBD) route, showing superior activity and stability for water splitting. This work provides a promising methodology for enhanced electrocatalytic water splitting with exceptional reliability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Polymer Science
Ankur Shukla, Dipayan Das, Kushal Sen
Summary: This article presents a fast and innovative process for conducting in situ polymerization of pyrrole onto a polyester fabric. The process utilizes electrically-assisted chemical vapor polymerization and ultrasonication to effectively bind the polymer to the fabric, resulting in the formation of electroconductive polypyrrole. The study finds that the applied potential, concentration of oxidant and dopant, polymerization time, and monomer vaporization rate play critical roles in determining the surface resistance of the fabric.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Qingguo Gao, Lvcheng Chen, Simin Chen, Zhi Zhang, Jianjun Yang, Xinjian Pan, Zichuan Yi, Liming Liu, Feng Chi, Ping Liu, Chongfu Zhang
Summary: This study reports the growth of bilayer MoS2 crystals on soda-lime glass substrate using NaCl-assisted CVD and analyzes the growth mechanism. The results show significant improvements in domain size and bilayer structure proportion compared to the bilayer MoS2 prepared without NaCl-assisted CVD. This provides a meaningful method for synthesizing high-quality bilayer MoS2 and promotes the large-scale and low-cost applications of CVD MoS2.
Article
Nanoscience & Nanotechnology
Yaohui Gao, Wenjun He, Da Cao, Fangqing Wang, Ying Li, Qiuyan Hao, Caichi Liu, Hui Liu
Summary: Designing effective and low-cost bifunctional electrocatalysts for the alkaline hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential to achieve green development of the hydrogen economy. Herein, Mo-doped Ni3S2 nanosheet array catalysts with excellent electrochemical properties were developed. They exhibited low overpotentials of 85 mV (HER) and 230 mV (OER) under alkaline conditions at 10 mA cm-2 and remained stable for 100 hours. Furthermore, in an alkaline electrolyzer, a voltage of only 1.52 V at 10 mA cm-2 was required, and the catalyst remained unchanged for over 100 hours, outperforming most reported electrocatalysts. Experimental and theoretical analysis confirmed the role of Mo in enhancing the electrocatalytic performance of Ni3S2.
ACS APPLIED NANO MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Shaohua Li, Decai Ouyang, Na Zhang, Yi Zhang, Akshay Murthy, Yuan Li, Shiyuan Liu, Tianyou Zhai
Summary: This review focuses on the use of substrate engineering strategies for the controlled growth of large-scale 2D transition metal dichalcogenides (TMDs). It provides insights into the interaction between TMDs and substrates and summarizes the effects of various substrate engineering approaches on the growth of 2D TMDs. The review also discusses the opportunities and challenges of substrate engineering for the future development of 2D TMDs.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Analytical
Quan Kong, Nanyu Fan, Siyi Chen, Xiaofen Wu, Lihua Liu, Ruifeng Lang, Zeyuan Gao, Hongtao Guan, Chengjun Dong, Gang Chen
Summary: The N-Ni3S2/CoS2/NF bifunctional catalyst with abundant interface, high conductivity and large electrochemical surface area exhibits excellent activity for both HER and OER, achieving efficient water splitting at a low cell voltage.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Kena Wu, Xiaonan Wei, Deng Li, Peng Hu
Summary: The in situ N doping strategy has been demonstrated to enhance the efficiency and stability of nickel molybdenum sulfide as a bifunctional electrocatalyst, with experimental and theoretical results showing superior performance and providing a valuable approach for the development of efficient catalysts in electrochemical applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Electrochemistry
Han Jiang, Huiting Yuan, Liguo Zhang, Wenjun Dong, Yueqi Chang, Xilai Jia, Ge Wang
Summary: A novel nickel foam-supported nitrogen-doped Co4S3/Ni3S2 heterostructured nanosheets were synthesized for water splitting, showing superior OER and HER performance. The rational structural design and nitrogen doping present a wide range of possibilities for the further development of highly efficient electrocatalysts based on earth abundant elements.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
