气候变化领域集成服务门户(CCPortal): Multi-heteroatom-doped carbon from waste-yeast biomass for sustained water splitting

CCPortal

DOI	10.1038/s41893-020-0509-6
	Multi-heteroatom-doped carbon from waste-yeast biomass for sustained water splitting
	Tiwari J.N.; Dang N.K.; Sultan S.; Thangavel P.; Jeong H.Y.; Kim K.S.
发表日期	2020
ISSN	2398-9629
起始页码	556
结束页码	563
卷号	3 期号:7
英文摘要	Producing hydrogen in clean, affordable and safe manners without damaging the environment can help address the challenge of meeting a growing energy demand sustainably. Yeast biomass-derived materials—such as multi-heteroatoms (nitrogen, sulfur and phosphorus) doped carbon (MHC) catalysts from waste biomass—can help develop efficient, eco-friendly and economical catalysts to improve the sustainability of hydrogen production. Here we report hydrogen and oxygen production in 1 M potassium hydroxide using ruthenium single atoms (RuSAs) along with Ru nanoparticles (RuNPs) embedded in MHC (RuSAs + RuNPs@MHC) as a cathode and magnetite (Fe3O4) supported on MHC (Fe3O4@MHC) as an anode. The RuSAs + RuNPs@MHC catalyst outperforms the state-of-the-art commercial platinum on carbon catalyst for hydrogen evolution reaction in terms of overpotential, exchange current density, Tafel slope and durability. Furthermore, compared with industrially adopted catalysts (that is, iridium oxide), the Fe3O4@MHC catalyst displays outstanding oxygen evolution reaction activity. For whole water splitting, it requires a solar voltage of 1.74 V to drive ~ 30 mA, along with remarkable long-term stability in the presence (12 h) and absence (58 h) of outdoor-sunlight exposure, as a promising strategy towards a sustainable energy development. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Biomass; Carbon; Catalysts; Electrodes; Iridium compounds; Iron oxides; Magnetite; Magnetite nanoparticles; Oxygen; Potassium hydroxide; Sustainable development; Yeast; Derived materials; Exchange current densities; Long term stability; Oxygen production; Platinum on carbon; Ru nanoparticles; Sunlight exposure; Sustainable energy development; Hydrogen production
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163514
作者单位	Center for Superfunctional Materials, Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea; UNIST Central Research Facilities, UNIST, Ulsan, South Korea
推荐引用方式 GB/T 7714	Tiwari J.N.,Dang N.K.,Sultan S.,et al. Multi-heteroatom-doped carbon from waste-yeast biomass for sustained water splitting[J],2020,3(7).
APA	Tiwari J.N.,Dang N.K.,Sultan S.,Thangavel P.,Jeong H.Y.,&Kim K.S..(2020).Multi-heteroatom-doped carbon from waste-yeast biomass for sustained water splitting.Nature Sustainability,3(7).
MLA	Tiwari J.N.,et al."Multi-heteroatom-doped carbon from waste-yeast biomass for sustained water splitting".Nature Sustainability 3.7(2020).