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  Engineering Interface with One-Dimensional Co3O4 Nanostructure in Catalytic Membrane Electrode: Toward an Advanced Electrocatalyst for Alcohol Oxidation

Yin, Z., Zheng, Y., Wang, H., Li, J., Zhu, Q., Wang, Y., et al. (2017). Engineering Interface with One-Dimensional Co3O4 Nanostructure in Catalytic Membrane Electrode: Toward an Advanced Electrocatalyst for Alcohol Oxidation. ACS Nano, 11(12), 12365-12377. doi:10.1021/acsnano.7b06287.

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Engineering Interface with One-Dimensional Co3O4 Nanostructure in Catalytic Membrane Electrode Towards an Advanced Electrocatalyst for Alcohol Oxidation .pdf (Any fulltext), 2MB
 
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 Creators:
Yin, Zhen1, Author
Zheng, Yumei 1, Author
Wang, Hong2, Author
Li, Jianxin2, Author
Zhu, Qingjun3, Author              
Wang, Ye1, Author
Ma, Na2, Author
Hu, Gang4, Author
He, Benqiao2, Author
Knop-Gericke, Axel3, Author              
Schlögl, Robert3, Author              
Ma, Ding4, Author
Affiliations:
1State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Membrane Science and Technology, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, 399 Binshui West Road, Tianjin 300387, People’s Republic of China, ou_persistent22              
2State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Membrane Science and Technology, School of Materials Science and Engineering, Tianjin Polytechnic University, 399 Binshui West Road, Tianjin 300387, People’s Republic of China, ou_persistent22              
3Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
4Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China, ou_persistent22              

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 Abstract: Electrochemical oxidation has attracted vast interest as a promising alternative to traditional chemical processes in fine chemical synthesis owing to its fast and sustainable features. An electrocatalytic membrane reactor (ECMR) with a three-dimensional (3D) electrode has been successfully designed for the selective oxidation of alcohols with high current efficiency to the corresponding acids or ketones. The anode electrode was fabricated by the in situ loading of one-dimensional (1D) Co3O4 nanowires (NWs) on the conductive porous Ti membrane (Co3O4 NWs/Ti) via the combination of a facile hydrothermal synthesis and subsequent thermal treatment. The electrocatalytic oxidation (ECO) results of alcohols exhibited superior catalytic performance with a higher current efficiency on the Co3O4 NWs/Ti membrane compared with those ofCo3O4 nanoparticles on the Ti membrane (Co3O4 NPs/Ti). Even under low reaction temperatures such as 0 °C, it still displayed a very high ECO activity for alcohol oxidation in the ECMR. For example, >99% conversion and 92% selectivity toward benzoic acid were obtained for the benzyl alcohol electrooxidation. The electrode is particularly effective for the cyclohexanol oxidation, and a selectivity of >99% to cyclohexanone was achieved at 0 °C, higher than most reported noble-metal catalysts under the aerobic reaction conditions. The extraordinary electrocatalytic performance of the 3D Co3O4 NWs/Ti membrane electrode demonstrates the significant influence of morphology effect and engineering interfaces in membrane electrodes on the electrocatalytic activity and charge transfer process of nanocatalysts. Our results propose that similar membrane electrodes serve as versatile platforms for the applications of 1D nanomaterials, porous electrodes, and ECMRs.

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Language(s): eng - English
 Dates: 2017-09-042017-11-152017-11-152017-12-26
 Publication Status: Published in print
 Pages: 13
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acsnano.7b06287
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Title: ACS Nano
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: 13 Volume / Issue: 11 (12) Sequence Number: - Start / End Page: 12365 - 12377 Identifier: ISSN: 1936-0851
CoNE: https://pure.mpg.de/cone/journals/resource/1936-0851