Article
Energy & Fuels
Sangaraju Sambasivam, Chandu V. V. Muralee Gopi, Hammad Mueen Arbi, Yedluri Anil Kumar, Hee-Je Kim, Salem Al Zahmi, Ihab M. Obaidat
Summary: Binder-free hierarchical core-shell-like CoMn2O4@MnS heterostructures have been successfully grown on the surface of nickel foam, providing superhighways for ultra-fast transfer of electrons and ions. The as-prepared core-shell-like CoMn2O4@MnS NWAs electrode exhibits outstanding specific capacity, remarkable rate capability, and excellent cycling stability, making it an advanced battery-type electrode material for supercapacitor applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Multidisciplinary
Qing Wang, Hui Xu, Xingyue Qian, Guangyu He, Haiqun Chen
Summary: The vacancy engineering strategy for the fabrication of DV-Co3O4/Co3S4@NF has shown outstanding electrocatalytic activity for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), making it a promising bifunctional electrocatalyst for overall water splitting (OWS).
Article
Chemistry, Physical
Yu Lu, Ling Wang, Mingyue Chen, Yue Wu, Gaofu Liu, Pengcheng Qi, Min Fu, Hao Wu, Yiwen Tang
Summary: The ZnCo2O4/C core-shell nanowire arrays exhibit high specific capacitance and superior cycling stability, showing promising potential for practical applications in high-performance supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Zhenjiang Li, Huanyu Li, Jiangnan Song, Ting Liu, Yinna He, Alan Meng, Yunpeng Liu, Cui Chen, Changlong Sun, Minmin Hu, Lei Wang, Guicun Li, Jian Zhao
Summary: In this study, a novel class of transition metal phosphide nanostructures evenly bonded on N/P co-doped graphene nanotubes was successfully synthesized. The resulting electrode material exhibits ultralong cycle life and superior rate capability, with high specific capacity and easy redox process. Compared to other transition metal compound electrodes, this material shows comparable or even better cycling stability and capacity retention, indicating great commercial application potential.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Wen-Duo Yang, Rong-Da Zhao, Jun Xiang, Sroeurb Loy, Yi-Fei Di, Jia Li, Mei-Ting Li, Dong-Mei Ma, Fu-Fa Wu
Summary: In this work, ZnCo2S4@Ni(OH)(2) nanowire arrays were successfully synthesized on nickel foam by hydrothermal methods. The ZnCo2S4@Ni(OH)(2) structure exhibited superior performance as a supercapacitor electrode and electrocatalyst, with high specific capacitance and energy density. It also delivered outstanding performance and stability for oxygen evolution reaction, hydrogen evolution reaction, and overall water splitting.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zijie Guo, Wutao Wei, Juan Shi, Pengpeng Wang, Zisen Ye, Liwei Mi
Summary: Without adding any additional solvent, the crystal water in the reactant provides a liquid environment directly for the reaction, allowing the whole reaction to be carried out safely and efficiently in a less-liquid reaction system. Furthermore, NiS2 in a cotton-like form was synthesized under the spatial effect of NaCl solution in a confined space. The fabricated material has a tight structure and abundant active sites, which promote rapid charge transport. This study provides a general strategy for preparing metal sulfides and suggests a new direction for improving electrochemical performance in less-liquid reaction systems without additional solvents.
Article
Chemistry, Physical
Periyasami Prabakaran, Gowdhaman Arumugam, Perumal Ramu, Manickam Selvaraj, Mohammed A. Assiri, Samuel Lalthazuala Rokhum, Sivakumar Periyasamy, Silambarasan Arjunan, Ramesh Rajendran
Summary: A pure Co3O4 nanoparticles and a carbon quantum dots (CQDs) anchored cobalt oxide (Co3O4/CQD) nano-composite were synthesized for supercapacitor application. The introduction of CQDs into the Co3O4 matrix increased the charge-transfer process, leading to improved electrochemical capabilities. The hybrid asymmetric supercapacitor demonstrated an energy density of 2.49 W h kg-1 @ 426 W kg-2 with a capacitance retention of 81.8%.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Nanxiang Zhang, Teng Zhao, Lei Wei, Tao Feng, Feng Wu, Renjie Chen
Summary: In this study, copper foam with Cu2O nanowire arrays was designed as a three-dimensional conductive skeleton for compositing lithium in lithium metal batteries. This structure addresses the issues of lithium dendrite growth and volume change, leading to improved cycling stability and safety in the batteries.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Chemical
Mengqi Cui, Zining Wang, Yuanye Jiang, Hui Wang
Summary: NiCoP4O12/NiCoP nanorod-like arrays with tunable grain boundary density and pores were synthesized. The optimized arrays exhibited high specific capacitance and good cycling ability, indicating their potential as promising electrodes for supercapacitors.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yan Wang, Jianhao Zhou, Zhiyu Zhou, Huifang Lv, Bingni Gu, Kuangye Wang, Zexiang Chen, Xinyu Yan, Jijun Zhang, Wen-Wu Liu, Yu-Lun Chueh
Summary: The three-dimensional hybrid networks prepared by a hydrothermal method provide a unique advantage for electrochemical supercapacitors, demonstrating excellent conductive behavior and electrochemical performance, showing high capacitance and energy density.
Article
Chemistry, Physical
Jing Wang, Gang Wang, Jian Hao, Xiang Zhang
Summary: This paper successfully prepared ZnCo2O4 nanowire arrays on carbon cloth conductive substrates and studied their electrochemical performance. The results indicate that the product has good specific capacity and cyclic stability, and can be assembled into an asymmetric supercapacitor.
Article
Chemistry, Multidisciplinary
Bowen Jin, Seyedsina Hejazi, Hongqi Chu, Gihoon Cha, Marco Altomare, Min Yang, Patrik Schmuki
Summary: This study proposes a strategy to overcome the drawbacks of MoO3 by fabricating electrodes composed of self-ordered one-dimensional (1D) MoTaOx nanotubes synthesized via electrochemical anodization. The resulting MoTaOx nanotubes, composed of octahedral MoO3 and rhombohedral Mo2Ta2O11 phases, exhibit remarkable electrochemical stability and Al-ion storage properties in aqueous electrolytes.
Article
Chemistry, Multidisciplinary
Iqra Rabani, Jeseung Yoo, Hyo-Sun Kim, Do Van Lam, Sajjad Hussain, K. Karuppasamy, Young-Soo Seo
Summary: The study presents a facile, advantageous, and cost-effective sol-gel synthetic route for growing Co3O4 nanoparticles uniformly over a low-cost and eco-friendly one-dimensional hydrophilic cellulose nanofiber surface, which exhibits high conductivity. This research paves a new pathway for realizing the full potential of Co3O4 nanoparticles as advanced electrode materials for next-generation flexible electronic devices using hydrophilic one-dimensional CNF.
Article
Chemistry, Physical
Mehdi Panahi, Mohsen Ghorbani, Mohammad Soleimani Lashkenari
Summary: This study utilized a simple and rapid synthetic method to prepare the CO3O4/GO nanocomposite, and investigated its performance as electrode material in hybrid supercapacitors through surface analyzes and electrochemical tests. The results showed that the hybrid nanocomposite exhibited high specific capacity, energy and power densities, as well as excellent cyclic stability and low impedance compared to other electrodes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yedluri Anil Kumar, Himadri Tanaya Das, Phaneendra Reddy Guddeti, Ramesh Reddy Nallapureddy, Mohan Reddy Pallavolu, Salem Alzahmi, Ihab M. Obaidat
Summary: In this study, a composite material of Co3O4 nanoneedles decorated on Mo-Co3O4 nanosheets was prepared by hydrothermal method and characterized for its electrochemical properties. The results showed that the Co3O4@Mo-Co3O4 nanocomposite exhibited high specific capacity and stability, making it a promising supercapacitor material.