期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 36, 页码 15527-15531出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202004563
关键词
cobalt oxide; photocatalysis; polyoxometalates; syngas; ultrathin nanowires
资金
- National Key R&D Program of China [2017YFA0700101, 2016YFA0202801]
- NSFC
Utilizing sustainable energy for chemical activation of small molecules, such as CO2, to produce important chemical feedstocks is highly desirable. The simultaneous production of CO/H-2 mixture (syngas) from photoreduction of CO2 and H2O is highly promising. However, the relationships between structure, composition, crystallinity, and photocatalytic performance are still indistinct. Here, amorphous ultrathin CoO nanowires and polyoxometalate incorporated nanowires with even lower crystallinity were synthesized. The POM-incorporated ultrathin nanowires exhibit high photocatalytic syngas production activity, reaching H-2 and CO evolution rates of 11555 and 4165 mu mol g(-1) h(-1) respectively. Further experiments indicate that the ultrathin morphology and incorporation of POM both contribute to the superior performance. Multiple characterizations reveal the enhanced charge-hole separation efficiency of the catalyst would facilitate the photocatalysis.
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