Cobalt Oxide on Boron-Doped Graphitic Carbon Nitride as Bifunctional Photocatalysts for CO2 Reduction and Hydrogen Evolution
Source abstract
Abstract
In this work, the prepared cobalt oxide decorated boron-doped g-C 3 N 4 (CoOx/g-C 3 N 4 ) heterojunction exhibits remarkable activity in CO 2 reduction (CO 2 RR), resulting in high yields of CH 3 COOH (∼383 μmol·g catalyst –1 ) and CH 3 OH (∼371 μmol·g catalyst –1 ) with 58% selectivity to C 2+ under visible light. However, the same system leads to high H 2 evolution (HER) by increasing the cobalt oxide content, suggesting that the selectivity and preference for the CO 2 RR or HER depend on oxide decoration. By comparing HER and CO 2 RR evolution in the same system, this work provides critical insights into the catalytic mechanism, indicating that the CoOx/g-C 3 N 4 heterojunction formation is necessary to foster high visible light photoactivity.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry
Federal University of São Carlos (UFSCar)
National Nanotechnology Laboratory for Agribusiness (LNNA)
Embrapa Instrumentation
São Carlos Institute of Chemistry
University of São Paulo (USP)
Institute of Chemistry
São Paulo State University (UNESP)
Funding
Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico · Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo · Financiadora de Estudos e Projetos · Alexander von Humboldt-Stiftung · Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
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