Review
Chemistry, Physical
Siran Xu, Qi Wu, Bang-An Lu, Tang Tang, Jia-Nan Zhang, Jin-Song Hu
Summary: Green hydrogen is obtained through electrochemical water splitting using renewable energy sources. Its combustion produces only water, making it crucial for global energy transition. However, slow reaction kinetics in alkaline media hinder efficient hydrogen production. Understanding alkaline reaction kinetics is essential for achieving carbon neutrality.
ACTA PHYSICO-CHIMICA SINICA
(2023)
Article
Chemistry, Physical
Kai Lv, Dewen Zheng, Yangyang Shi, Xi Zhang, Feihong Wang, Jianming Li, Shanyu Wang, Binbin Dong, Lu Yuan Hao, Liangjun Yin, Xin Xu, Yuxi Xian, Simeon Agathopoulos
Summary: This study successfully utilized ceramic membrane technology to prepare MoS2-modified TiN electrodes, demonstrating excellent electrocatalytic activity. The vertically grown MoS2 nanoflakes on the TiN surface, forming a dual-pore structure, facilitated electron transfer and enhanced hydrogen evolution reaction efficiency.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Lingxing Zan, Hongling Zhang, Xin Bo, Yuyue Zhao, Huanqing Tian, Hao Chen, Qingbo Wei, Haoqing Tang, Feng Fu
Summary: This study successfully prepared Co3O4 catalysts with different morphologies via the hydrothermal method, achieving catalytic performance for HER. By equipping with Ag substrate, the Co3O4 catalysts were triggered into a higher active state, optimizing the overpotential at the HER current density and enhancing the efficiency of hydrogen generation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Environmental Sciences
Yuling Xu, Xinyi Zhang, Yanyan Liu, Renjun Wang, Yuewei Yang, Junfeng Chen
Summary: Hydrogen production by electrolyzing water is seen as an effective way to generate and store new energy using renewable sources. However, the slow kinetics and reliance on noble metal catalysts have hindered its wide application. The design and development of high-efficiency metal alloy catalysts have therefore become a research hotspot in promoting hydrogen production technology.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Dogan cirmi, Rukan Suna Karatekin, Rezzan Aydin, Fatih Koeleli
Summary: In this study, a non-supported polypyrrole material was successfully prepared and used for hydrogen evolution reaction and CO2 reduction in acidic methanol. The material exhibited suitable physical, chemical, and electrochemical properties, and showed good catalytic performance.
Article
Physics, Multidisciplinary
Jyoti Gupta, Dibakar Das, Anirudha Karati, Joydip Joardar, Pramod H. Borse
Summary: Nanostructured MoS2 synthesized hydrothermally was immobilized on graphite paper to create an electrode for hydrogen evolution. Through chemical optimization and characterization, it was found that the optimized MoS2 exhibited higher electrocatalytic stability and hydrogen production rate.
Article
Chemistry, Multidisciplinary
Guoqiang Zhao, Lixue Xia, Peixin Cui, Yumin Qian, Yinzhu Jiang, Yan Zhao, Hongge Pan, Shi Xue Dou, Wenping Sun
Summary: This study focuses on precise manipulation of atomic-level interface chemistry in Pt/NiO heterostructure through annealing treatment, resulting in enhanced hydrogen electrocatalysis kinetics. The optimized heterostructure exhibits the highest specific exchange current density, attributed to the formation of Pt-Ni interfacial bonds and improved electron transfer. The regulated interface chemistry also optimizes hydrogen and hydroxyl species binding behaviors, emphasizing the importance of atomic-level interface engineering in heterostructured electrocatalysts.
Article
Chemistry, Physical
Shuhuan Han, Xiuhui Li, Xiaofei Zeng, Dapeng Cao, Jian-Feng Chen
Summary: This study reports a vertically aligned core-shell structure material with hollow polypyrrole nanowire as a core and Ru-doped MoS2 nanosheets as a shell, which serves as a highly efficient and ultra-stable catalyst for electrocatalytic hydrogen evolution reaction in alkaline solutions. Results show that the catalyst exhibits low overpotential and stable catalytic activity, and the core-shell structure enhances the activity and stability of the catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Environmental Sciences
Hadi Beitollahi, Fariba Garkani Nejad, Zahra Dourandish, Somayeh Tajik
Summary: This study developed an electrochemical sensor for the detection of amaranth, a potentially toxic dye used in the textile industry. The sensor utilized polypyrrole nanotubes to enhance the electrocatalytic activity for amaranth detection. The results showed that the sensor had a wide linear dynamic range and a low limit of detection, making it suitable for practical applications.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Zipei Cui, Wenchao Sheng
Summary: Using a three-electrode configuration cell is the standard way to evaluate the electrocatalytic performance of materials. Concerns have been raised regarding the use of Pt as the counter electrode, as corrosion interferes with the accuracy of evaluating the hydrogen evolution activity on nonprecious metals. This study demonstrates basic principles for selecting a proper counter electrode material, including minimizing polarization, maximizing surface area ratio, and limiting current magnitude at the working electrode.
Article
Chemistry, Physical
Yue Zhang, Zhe Zhang, Xuetao Zhang, Xinglong Gao, Zhihui Shang, Xuezhen Huang, Enyan Guo, Conghui Si, Mingzhi Wei, Qifang Lu, Xiujun Han
Summary: In this study, self-supporting electrodes were successfully prepared using cotton fiber filtration paper as a support, demonstrating low overpotential and excellent catalytic performance. Furthermore, theoretical calculations revealed that the addition of Co atoms to the nanospheres enhanced the catalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Green & Sustainable Science & Technology
Rajib Samanta, Ranjit Mishra, Biplab Kumar Manna, Sudip Barman
Summary: Development of active HOR/HER electro-catalyst is crucial for next-generation renewable technologies. In this study, IrO2-modified PdO nanostructures/carbon composite with surface defects was synthesized and demonstrated to have excellent activity and stability in HER/HOR applications. The catalyst showed significantly higher activity than commercial Pt/C in both acidic and basic conditions. This research contributes to the development of Pt-free electrocatalysts for renewable energy technologies.
Article
Chemistry, Physical
Mingxia Zhao, Liqin Yang, Zhenyu Cai, Hao Guo, Zhiju Zhao
Summary: A novel tri-metal phosphides nanowires were designed in this study, showing outstanding performance for hydrogen evolution reaction in alkaline electrolyte, with high current density and good operational stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
K. Zhang, W. D. Yang, F. C. Guo, W. Z. Yu
Summary: We report a feasible and reliable strategy for the fabrication of a cuboid-like Co2MoB4 electrode anchored on Co foam. The Co2MoB4 electrocatalyst exhibits high activity towards the hydrogen evolution reaction (HER) and urea oxidation reaction (UOR) as well as superior durability. This method can achieve a lower overpotential and voltage, reducing energy consumption and producing hydrogen by decomposing urea.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Energy & Fuels
Daman Xu, Yingqi Heng, Xiang Qin, Dongying Hu
Summary: In this study, the key materials for cellulose-based supercapacitors were successfully fabricated using natural and renewable cellulose as substrates. These materials exhibited excellent electrochemical performance and provide insights for the development of cellulose membrane-based energy storage materials.
JOURNAL OF ENERGY STORAGE
(2022)
