Integrating Perovskite Photovoltaics and Noble-Metal-Free Catalysts toward Efficient Solar Energy Conversion and H2S Splitting

doi:10.1021/acscatal.6b01772

	Integrating Perovskite Photovoltaics and Noble-Metal-Free Catalysts toward Efficient Solar Energy Conversion and H2S Splitting
	Ma, Weiguang; Han, Jingfeng; Yu, Wei; Yang, Dong; Wang, Hong; Zong, Xu; Li, Can
刊名	ACS CATALYSIS
	2016-09-01
卷号	6 期号:9 页码:6198-6206
关键词	Perovskite Photovoltaics Noble-metal-free Catalysts Redox Mediators Solar Energy Conversion H2s Splitting
ISSN号	2155-5435
DOI	10.1021/acscatal.6b01772
文献子类	Article
英文摘要	Hydrogen sulfide (H2S) has been considered as a potential hydrogen source. Identifying efficient solar-driven processes and low-cost materials that can extract hydrogen from H2S is highly attractive. Herein, for the first time, we reported the establishment of a perovskite photovoltaic-electrolysis (PV-EC) H2S splitting system by integrating a single perovskite solar cell, noble-metal-free catalysts, and H2S splitting reaction with the aid of mediators. The as-established system delivered a solar-to-chemical energy conversion efficiency of up to 13.5% during the PV-EC step by using molybdenum-tungsten phosphide (Mo-W-P) as the catalyst for a hydrogen evolution reaction (HER) and a graphite carbon sheet as the catalyst for the oxidation of mediators, respectively. To the best of our knowledge, this is among the highest value ever reported for the artificial conversion of solar to chemical energy using perovskite solar cells. Moreover, upon integration with the PV-EC system, a H2S splitting reaction with a net energy conversion efficiency of 3.5% can be accomplished, and the overall energy consumption to obtain an equivalent amount of H-2 from H2S is reduced by ca. 43.3% compared with that from water splitting. This paradigm of producing value-added chemicals by consuming negative value waste products is solely based on low-cost materials and a simpler system configuration, which significantly improves the economic sustainability of the process.
WOS关键词	HYDROGEN EVOLUTION ; SULFUR RECOVERY ; CELLS ; ELECTROCATALYST ; GENERATION ; SULFIDE ; DRIVEN ; PHOTOELECTROLYSIS ; NANOPARTICLES ; PHOTOCATALYST
WOS研究方向	Chemistry
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000382714000064
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168300]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Zong, Xu; Li, Can
作者单位	Chinese Acad Sci, Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian Natl Lab Clean Energy, State Key Lab Catalysis,Dalian Inst Chem Phys, Zhongshan Rd 457, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Ma, Weiguang,Han, Jingfeng,Yu, Wei,et al. Integrating Perovskite Photovoltaics and Noble-Metal-Free Catalysts toward Efficient Solar Energy Conversion and H2S Splitting[J]. ACS CATALYSIS,2016,6(9):6198-6206.
APA	Ma, Weiguang.,Han, Jingfeng.,Yu, Wei.,Yang, Dong.,Wang, Hong.,...&Li, Can.(2016).Integrating Perovskite Photovoltaics and Noble-Metal-Free Catalysts toward Efficient Solar Energy Conversion and H2S Splitting.ACS CATALYSIS,6(9),6198-6206.
MLA	Ma, Weiguang,et al."Integrating Perovskite Photovoltaics and Noble-Metal-Free Catalysts toward Efficient Solar Energy Conversion and H2S Splitting".ACS CATALYSIS 6.9(2016):6198-6206.