Nickel sulfide-based energy storage materials for high-performance electrochemical capacitors
来源期刊：Rare Metals2021年第2期
论文作者：Ramyakrishna Pothu Ravi Bolagam Qing-Hong Wang Wei Ni Jin-Feng Cai Xiao-Xin Peng Yue-Zhan Feng Jian-Min Ma
文章页码：353 - 373
摘 要：Supercapacitors are favorable energy storage devices in the field of emerging energy technologies with high power density,excellent cycle stability and environmental benignity.The performance of supercapacitors is definitively influenced by the electrode materials.Nickel sulfides have attracted extensive interest in recent years due to their specific merits for supercapacitor application.However,the distribution of electrochemically active sites critically limits their electrochemical performance.Notable improvements have been achieved through various strategies such as building synergetic structures with conductive substrates,enhancing the active sites by nanocrystallization and constructing nanohybrid architecture with other electrode materials.This article overviews the progress in the reasonable design and preparation of nickel sulfides and their composite electrodes combined with various bifunctional electric double-layer capacitor（EDLC）-based substances（e.g.,graphene,hollow carbon） and pseudocapacitive materials（e.g.,transition-metal oxides,sulfides,nitrides）.Moreover,the corresponding electrochemical performances,reaction mechanisms,emerging challenges and future perspectives are briefly discussed and summarized.
Ramyakrishna Pothu1，Ravi Bolagam1，Qing-Hong Wang2，Wei Ni3,4，Jin-Feng Cai5，Xiao-Xin Peng5，Yue-Zhan Feng6，Jian-Min Ma1
1. School of Physics and Electronics,Hunan University2. School of Chemistry and Materials Science,Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials,Jiangsu Normal University3. Institute for Advanced Study,Chengdu University4. Faculty of Technology,University of Oulu5. Yiyang Wanjingyuan Electronics Co.,Ltd.6. Key Laboratory of Materials Processing and Mold(Zhengzhou University),Ministry of Education,Zhengzhou University
摘 要：Supercapacitors are favorable energy storage devices in the field of emerging energy technologies with high power density,excellent cycle stability and environmental benignity.The performance of supercapacitors is definitively influenced by the electrode materials.Nickel sulfides have attracted extensive interest in recent years due to their specific merits for supercapacitor application.However,the distribution of electrochemically active sites critically limits their electrochemical performance.Notable improvements have been achieved through various strategies such as building synergetic structures with conductive substrates,enhancing the active sites by nanocrystallization and constructing nanohybrid architecture with other electrode materials.This article overviews the progress in the reasonable design and preparation of nickel sulfides and their composite electrodes combined with various bifunctional electric double-layer capacitor（EDLC）-based substances（e.g.,graphene,hollow carbon） and pseudocapacitive materials（e.g.,transition-metal oxides,sulfides,nitrides）.Moreover,the corresponding electrochemical performances,reaction mechanisms,emerging challenges and future perspectives are briefly discussed and summarized.
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