Mesoporous β-Co(OH)2 nanowafers and nanohexagonals obtained synchronously in one solution and their electrochemical hydrogen storage properties

作     者：Longqiang Wang Jingyuan Fu Yue Zhang Xiaoling Liu Yansheng Yin Lihua Dong Shougang Chen 

作者机构：Institute of Materials Science and EngineeringOcean University of China College of Marine Science & EngineeringShanghai Maritime University 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2016年第26卷第6期

页      面：555-561页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070205[理学-凝聚态物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 070301[理学-无机化学] 0702[理学-物理学] 

基　　金：sponsored by National Natural Science Foundation(51572249 51302254) National High Technology Research and Development Program of China(2013A2041106) Fundamental Research Funds for the Central University(201562011) 

主　　题：β-Co(OH)2 Nanowafers Nanohexagonals Electrochemical hydrogen storage 

摘      要：A water/oil two-phase solution strategy has been developed for the synthesis of various β-Co(OH)2nanostructures. More importantly, two different morphologies of β-Co(OH)2:mesoporous nanowafers and nanohexagons were successfully obtained through one reaction. Furthermore, the special mesoporous of β-Co(OH)2nanowafers and nanohexagons exhibited excellent electrochemical hydrogen storage capacities and cycling stability. The maximum capacity reached 265.9 and 215.7 mA hg-1at room temperature, *** 70 cycles, the discharging capacities of the electrode still remain above 218.2 and 175.4 mA hg-1, which indicates that the as-prepared mesoporous β-Co(OH)2nanowafers have a strong resistance against oxidation and corrosion. These results indicates that the mesoporous β-Co(OH)2nanowafers and nanohexagons may be potentially applied for electrochemical hydrogen storage.