期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 12, 页码 3952-3957出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201511378
关键词
buckypaper; cobaloximes; electrocatalysis; dihydrogen evolution; polymers
资金
- Christian Doppler Research Association (Austrian Federal Ministry of Science, Research and Economy)
- Christian Doppler Research Association (National Foundation for Research, Technology and Development)
- OMVGroup
- EPSRC
- BBSRC [BB/K010220/1]
- Woolf Fisher Trust in New Zealand
- Cambridge Trusts
- Biotechnology and Biological Sciences Research Council [BB/K010220/1] Funding Source: researchfish
- Engineering and Physical Sciences Research Council [1235151, EP/K039520/1] Funding Source: researchfish
- BBSRC [BB/K010220/1] Funding Source: UKRI
- EPSRC [EP/K039520/1] Funding Source: UKRI
A freestanding H-2-evolution electrode consisting of a copolymer-embedded cobaloxime integrated into a multiwall carbon nanotube matrix by - interactions is reported. This electrode is straightforward to assemble and displays high activity towards hydrogen evolution in near-neutral pH solution under inert and aerobic conditions, with a cobalt-based turnover number (TONCo) of up to 420. An analogous electrode with a monomeric cobaloxime showed less activity with a TONCo of only 80. These results suggest that, in addition to the high surface area of the porous network of the buckypaper, the polymeric scaffold provides a stabilizing environment to the catalyst, leading to further enhancement in catalytic performance. We have therefore established that the use of a multifunctional copolymeric architecture is a viable strategy to enhance the performance of molecular electrocatalysts.
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