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An overview of metal hydroxyfluoride-A novel semiconductor material
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作者 Xingyu Yao Rutao Wang +6 位作者 Jinbo Zhao Fei Liu Zhidong Jin Zhou Wang Fenglong Wang Jiurong Liu Lili Wu 《ChemPhysMater》 2024年第2期125-142,共18页
Semiconductors have been widely used in many high-tech fields such as photo-and electro-catalysis,ion bat-teries,and solar cells.In addition to the earliest discovered elemental and compound semiconductors,such as mon... Semiconductors have been widely used in many high-tech fields such as photo-and electro-catalysis,ion bat-teries,and solar cells.In addition to the earliest discovered elemental and compound semiconductors,such as monocrystalline silicon and metal oxides,new types of compound semiconductors have been discovered.Among them,metal hydroxyfluorides(MOHF)are an emerging type of semiconductor that are easy to synthesize and inexpensive.However,many of their properties and applications are not well understood.Nevertheless,some MOHF materials,such as ZnOHF and CoOHF,have been sufficiently developed,and their applications have been extensively explored.This review focuses on a new compound semiconductor,MOHF,with ZnOHF and CoOHF as the typical.After a short introduction to their physical and chemical properties,their common applications are illustrated with several examples.Subsequently,other less-researched MOHF and MOHF-like materials,as well as their applications,are discussed.Moreover,the expectations and development directions of MOHFs are briefly summarized. 展开更多
关键词 Metal hydroxyfluoride SEMICONDUCTOR Functionalmaterials PHOTOCATALYSTS ELECTROCHEMISTRY
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One-pot synthesis of nickel-cobalt hydroxyfluorides nanowires with ultrahigh energy density for an asymmetric supercapacitor 被引量:1
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作者 Jian-Fang Zhang Yan Wang +9 位作者 Xia Shu Cui-Ping Yu Ming-Feng Xiao Jie-Wu Cui Yong-Qiang Qin Hong-Mei Zheng Yong Zhang Dong Chen Pulickel M. Ajayan Yu-Cheng Wu 《Science Bulletin》 SCIE EI CSCD 2018年第5期322-330,共9页
A novel and unique nickel-cobalt hydroxyfluorides(NiCo-HF)nanowires material is fabricated by one-pot solvothermal synthesis method for asymmetric supercapacitor.The synthesis mechanism and factors that influence the ... A novel and unique nickel-cobalt hydroxyfluorides(NiCo-HF)nanowires material is fabricated by one-pot solvothermal synthesis method for asymmetric supercapacitor.The synthesis mechanism and factors that influence the formation of the Ni Co-HF nanowires have been further discussed.The as-prepared NiCo-HF electrode exhibits a high specific capacitance of 3,372.6 F g^(à1),and the capacitance retention of 94.3%can be achieved at a high current density of 20 A g^(à1)after 10,000 cycles.The outstanding electrochemical performance of the electrode can be attributed to the synergistic effect of the nanowires morphology and complicated redox process of active material.Furthermore,an asymmetric supercapacitor assembled with Ni Co-HF nanowires as positive electrode and activated carbon as the negative electrode shows an ultrahigh energy density of 83.6 Wh kg^(à1)at a power density of 379.4 W kg^(à1)and an excellent cycling stability with 86.3%capacitance retention after 10,000 cycles,indicating that this novel material has great promise for potential application in energy storage device. 展开更多
关键词 Nickel-cobalt hydroxyfluorides SOLVOTHERMAL synthesis Asymmetric SUPERCAPACITOR Energy density
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