Article
Energy & Fuels
Xiaoting Zha, Liuwei Shi, Yajie Yang
Summary: A bimetallic metal-organic frameworks (MOFs) composite with ultrahigh specific capacity and excellent cycling stability was prepared using a one-step solvothermal method. The composite electrode, which consists of regulated nickel-cobalt MOFs nanosheet array on carbon cloth, achieved an ultrahigh specific capacity of 644.4C g-1 at a current density of 0.5 A g-1. The flexible device based on this binder-free NiCo-BTC nanosheet electrode and active carbon displayed a high energy density of 32.4 Wh kg-1 and an ultra-long cyclic life with a capacity retention of 91.2% after 8000 cycles.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Amir Mehtab, Syed Asim Ali, Pravin P. Ingole, Yuanbing Mao, Saad M. Alshehri, Tokeer Ahmad
Summary: This paper presents a strategy to precisely transfer electrons from MoS2 to g-C3N4 through a Z-scheme manner, resulting in improved catalytic efficiency and enhanced photo/electrochemical performance.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Analytical
Guanghua He, Li Wang
Summary: Flexible carbon nanofibers (CNFs) loaded with conducive Ni2P nanosheet arrays (Ni2P-CNFs) were prepared by electrospinning. These Ni2P-CNFs exhibited remarkable capacitance performance and were used as electrode materials for asymmetric supercapacitors.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Hao Gui, Jian Ding, Ronghua Wang, Minquan Zhou, Yongsheng Xiang, Xinlu Li
Summary: The development of aqueous supercapacitors has been hindered by the limited voltage window and low energy density. This study successfully expands the electrode voltage range and increases the specific capacitance of supercapacitors by taking advantage of the additional overpotential of the hydrogen and oxygen evolution reactions.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Christopher Simon, Judith Zander, Tintula Kottakkat, Morten Weiss, Jana Timm, Christina Roth, Roland Marschall
Summary: Phase-pure spinel Ni2FeS4 nanosheets with specific surface area of 80 m²/g were successfully prepared via fast and energy-saving microwave-assisted nonaqueous sol-gel synthesis. These nanosheets were applied as electrocatalyst for aqueous carbon dioxide reduction reaction, selectively yielding syngas components hydrogen and carbon monoxide.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Chemistry, Physical
Zhenglong Li, Yaping Chen, Tianyi Ma, Yinzhu Jiang, Jian Chen, Hongge Pan, Wenping Sun
Summary: The exploration of highly active and low-cost electrocatalysts using 2D metal-free nanomaterials is crucial for sustainable and efficient energy conversion technologies. Surface engineering and interface engineering are key strategies for constructing advanced electrocatalysts based on these materials. Challenges and future directions of utilizing 2D metal-free nanomaterials in electrocatalysis are also discussed.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Zhichao Li, Xinyu Liu, Xuyun Wang, Hui Wang, Jianwei Ren, Rongfang Wang
Summary: By employing a composite strategy, a Ti3C2Tx MXene-based composite electrode material was successfully prepared in this study, which exhibited high specific capacitance and good cyclic stability, indicating its potential for practical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Xuan Jian, Tan Li, Shanshan Guo, Loujun Gao, Feng Fu, Yue Tian, Yucheng Wu
Summary: This work presents a facile electrochemical method for the fabrication of a binder-free Ti3C2Tx MXene-supported low-Pt loading electrocatalyst. The Pt nanoparticle-deposited Ti3C2Tx MXene demonstrates better electrocatalytic activity for hydrogen evolution. Density functional theory calculations reveal the synergistic effect between Pt and Ti3C2Tx MXene.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Engineering, Environmental
Bhavana Joshi, Edmund Samuel, Yong-il Kim, Alexander L. Yarin, Mark T. Swihart, Sam S. Yoon
Summary: Carbon nanofibers derived from electrospun precursors show great promise for electronic applications by integrating metal oxides and sulfides, eliminating various problems, and offering a cost-effective strategy for fabrication of lightweight lithium-ion batteries with high capacity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Hui Xu, Kun Wang, Lei Jin, Lida Yang, Jingjing Yuan, Wenyao Zhang, Guangyu He, Haiqun Chen
Summary: An advanced approach of incorporating Ru dopants and sulfur vacancies into FeNi2S4 catalyst has been proposed to synergistically modulate the electronic configuration, leading to the formation of active Ni3+ species. The optimized Ru-FeNi2S4 catalyst exhibits superb electrocatalytic performance towards oxygen evolution reaction (OER), delivering low overpotentials in alkaline water and seawater.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Ya Liu, Wenzhu Tang, Gaowei Zhang, Wenhao Chen, Qingze Chen, Chunlin Xiao, Shenghui Xie, Yejun Qiu
Summary: In this study, a 3D electrode composed of silver nanowires and NiMo alloy on a polyurethane sponge substrate was successfully developed, exhibiting excellent performance and stability for hydrogen evolution reaction. The electrode demonstrated good electrolyte permeability, rich active sites, and good electronic conductivity, leading to improved catalytic activity.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Review
Electrochemistry
Bowen Ren, Hao Cui, Chengxin Wang
Summary: This review presents the preparation strategies and properties of self-supported graphene nanosheet-based composites (GNBCs). It also highlights recent developments in integrated binder-free electrodes for practical applications such as lithium-ion batteries and supercapacitors. The challenges and future perspectives in this emerging field are also discussed.
ELECTROCHEMICAL ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Yupeng Chen, Zhongpeng Zhu, Xiangyu Jiang, Lei Jiang
Summary: This study presents a strategy for constructing free-standing 3D microcavity-patterned conducting polymer films on superhydrophobic substrates, investigating the effects of various factors on the construction process and achieving easy-peeling and nondestructive transfer properties.
Article
Materials Science, Ceramics
Muhammad Sufyan Javed, Tayyba Najim, Iftikhar Hussain, Saima Batool, Muhammd Idrees, Ayaz Mehmood, Mohammed Imran, Mohammad A. Assiri, Awais Ahmad, Syed Shoaib Ahmad Shah
Summary: The VO@Ti electrode shows impressive capacitance and long-term reliability due to highly exposed active sites and improved electrical conductivity.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Hossein Faraji, Khadijeh Hemmati, Kavoos Mirabbaszadeh
Summary: This study develops a high-performance electrode for Hydrogen Evolution Reaction (HER) through the rational design of non-noble metal-based electrocatalysts. The electrode exhibits a stable structure, high hydrogen evolution efficiency, excellent stability, and negligible activity decrease in alkaline media. The synergistic effect between Ni and Fe atoms, high density of active sites on nanosheets, and effective electron transport contribute to its superior HER catalytic performance. This work provides a promising route for the design and fabrication of cost-effective and highly efficient HER electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)