气候变化领域集成服务门户(CCPortal): Monolithic Photoelectrochemical CO2 Reduction Producing Syngas at 10% Efficiency

CCPortal

DOI	10.1002/aenm.202100070
	Monolithic Photoelectrochemical CO2 Reduction Producing Syngas at 10% Efficiency
	Kistler T.A.; Um M.Y.; Cooper J.K.; Sharp I.D.; Agbo P.
发表日期	2021
ISSN	16146832
英文摘要	Increasing anthropogenic carbon dioxide emissions have prompted the search for photoelectrochemical (PEC) methods of converting CO2 to useful commodity products, including fuels. Ideally, such PEC approaches will be sustained using only sunlight, water, and CO2 as energetic and reactant inputs. However, low peak conversion efficiencies (<5%) have made commercialization of fully-integrated PEC devices prohibitive. Here, a 4 cm2 monolithic PEC device exceeding 10% solar-to-fuel efficiency with principal fuel products of carbon monoxide and hydrogen is reported. The corresponding solar-to-CO and solar-to-H2 efficiencies are 7% and 3.5%, respectively. Screening of a range of operating conditions reveals a tunable product mixture of H2 and CO using a gold electrocatalyst. Accordingly, it is shown that device optimization yields a H2-to-CO ratio of 1:2 commonly present in synthesis gas (syngas). Notably, the modularity and facile fabrication of this device permit the incorporation of a broad array of materials for various applications. For example, the electrocatalyst may easily be swapped to target a different set of products. © 2021 Wiley-VCH GmbH
英文关键词	CO 2 reduction; monolithic; photoelectrochemical; solar fuels
scopus关键词	Carbon dioxide; Carbon monoxide; Efficiency; Electrocatalysts; Global warming; Hydrogen fuels; Synthesis gas; Anthropogenic carbon dioxide; Commodity products; Device optimization; Facile fabrication; Operating condition; Photoelectrochemical method (PEC); Photoelectrochemicals; Synthesis gasses (syngas); Photoelectrochemical cells
来源期刊	Advanced Energy Materials
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177278
作者单位	Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Walter Schottky Institute and Physics Department, Technische Universität München, Garching, 85748, Germany
推荐引用方式 GB/T 7714	Kistler T.A.,Um M.Y.,Cooper J.K.,et al. Monolithic Photoelectrochemical CO2 Reduction Producing Syngas at 10% Efficiency[J],2021.
APA	Kistler T.A.,Um M.Y.,Cooper J.K.,Sharp I.D.,&Agbo P..(2021).Monolithic Photoelectrochemical CO2 Reduction Producing Syngas at 10% Efficiency.Advanced Energy Materials.
MLA	Kistler T.A.,et al."Monolithic Photoelectrochemical CO2 Reduction Producing Syngas at 10% Efficiency".Advanced Energy Materials (2021).