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Co3O4 nanosheet-built hollow dodecahedrons via a two-step self-templated method and their multifunctional applications

文献类型：期刊论文

作者Li, Yuanyuan1,2; Liu, Bo1,2; Wang, Hong1,2; Su, Xingsong1,2; Gao, Lei1; Zhou, Fei1; Duan, Guotao1
刊名SCIENCE CHINA-MATERIALS
出版日期2018-12-01
卷号61期号:12页码:1575-1586
关键词Co3O4 self-templated method gas sensing oxygen evolution reaction
ISSN号2095-8226
DOI10.1007/s40843-018-9254-6
通讯作者Duan, Guotao(duangt@issp.ac.cn)
英文摘要The Co3O4 nanosheet-built hollow dodecahedrons (Co3O4 NSHDs) were fabricated via a controllable two-step self-templated method. The ZIF-67 dodecahedrons were prepared as first self-template to synthesize the Co-LDH hollow dodecahedrons, which were further used as self-template to fabricate Co3O4 NSHDs by a controlled calcination. The proposed two-step self-templated method not only brings hollow structures without auxiliary template, ultrathin nanosheet, ultrafine grains, and large surface areas, but also allows the easy and uniform surface modification, as demonstrated of PdO modification. The Co3O4 NSHDs with above features could show multifunctional applications, such as sensing and catalysis. Experiments suggest that the Co3O4 NSHDs show good gas sensing performances to trimethylamine at a low operating temperature (100 degrees C). They can be further enhanced by PdO surface modification, which have a low detection limit (250 ppb) and a short response time (4.5 s). In addition, the Co3O4 NSHDs exhibited excellent oxygen evolution reaction performances with a low overpotential of 359 mV, low Tafel slope of 80.7 mV dec(-1) and low electrochemical impedance, which was superior to those for the Co3O4 NCs obtained by directly calcinating the ZIF-67 templates, Ni foam and most common metal oxides catalysts.
WOS关键词OXYGEN EVOLUTION REACTION ; LAYERED DOUBLE HYDROXIDES ; METAL-ORGANIC FRAMEWORKS ; PERFORMANCE GAS SENSOR ; TRIMETHYLAMINE GAS ; SENSING PROPERTIES ; ROOM-TEMPERATURE ; MESOPOROUS CO3O4 ; NANOROD ARRAYS ; MOF TEMPLATES
资助项目National Key R&D Program of China[2016YFC0201103] ; Natural Science Foundation of China[51471161] ; Natural Science Foundation of China[11674320] ; Youth Innovation Promotion Association CAS ; Key Research Projects of the Frontier Science CAS[QYZDB-SSW-JSC017]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000450218200008
出版者SCIENCE PRESS
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Projects of the Frontier Science CAS ; Key Research Projects of the Frontier Science CAS ; Key Research Projects of the Frontier Science CAS ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/34072]  
专题合肥物质科学研究院_中科院固体物理研究所
通讯作者Duan, Guotao
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yuanyuan,Liu, Bo,Wang, Hong,et al. Co3O4 nanosheet-built hollow dodecahedrons via a two-step self-templated method and their multifunctional applications[J]. SCIENCE CHINA-MATERIALS,2018,61(12):1575-1586.
APA Li, Yuanyuan.,Liu, Bo.,Wang, Hong.,Su, Xingsong.,Gao, Lei.,...&Duan, Guotao.(2018).Co3O4 nanosheet-built hollow dodecahedrons via a two-step self-templated method and their multifunctional applications.SCIENCE CHINA-MATERIALS,61(12),1575-1586.
MLA Li, Yuanyuan,et al."Co3O4 nanosheet-built hollow dodecahedrons via a two-step self-templated method and their multifunctional applications".SCIENCE CHINA-MATERIALS 61.12(2018):1575-1586.

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来源：合肥物质科学研究院

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