Upcycling biomass tar into highly porous, defective and pyridinic-n-enriched graphene nanohybrid as efficient bifunctional catalyst for Zn-air battery

doi:10.1016/j.electacta.2020.137319

	Upcycling biomass tar into highly porous, defective and pyridinic-n-enriched graphene nanohybrid as efficient bifunctional catalyst for Zn-air battery
	Li, Denian 1,3,4; Chen, Huibing 1,3,5; Zhang, Yuyuan 2; Yang, Jizhang 1,3; Yuan, Haoran 1,2,3,4,5; Chen, Yong 1,3,4,5
刊名	ELECTROCHIMICA ACTA
	2020-12-20
卷号	364 页码:10
关键词	Biomass tar Graphene nanohybrids Bifunctional oxygen-electrocatalyst Zn-air battery
ISSN号	0013-4686
DOI	10.1016/j.electacta.2020.137319
通讯作者	Yuan, Haoran(yuanhr@ms.giec.ac.cn)
英文摘要	With quite limited use, biomass tar has been a long-standing issue that strongly impaired the cost-efficiency of biomass gasification. Here, a facile activation-annealing route for upcycling biomass tar into graphene nanohybrids with developed porosity and enriched pyridinic nitrogen was reported, whilst the metal-free product revealed with superior catalytic activities to the benchmark Pt/C and RuO2 catalysts toward oxygen reduction reaction (ORR) and evolution reaction (OER). By associating the dual functionalities with products' physiochemical properties, it was unveiled that those pyridinic-N and defects were accounted for the promoted oxygen reduction and evolution, respectively. Together with reinforced electric conductivity and hierarchical porosity and enlarged interface via ammonia annealing, the heterogeneously structured carbon catalyst finally endowed an assembled primary Zn-air battery with maximum energy density of 121 mW/cm(-2), in addition to robust stability against long-term running. This work highlights the great potential of biomass tar for advanced carbon materials, and therefore a novel strategy to address the tar-related challenges faced by gasification technologies. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Key R&D Program of China[2018YFC1901200] ; National Natural Science Foundation of China[5180622G] ; Provincial Natural Science of Guangdong[2019A1515] ; Provincial Natural Science of Guangdong[J11570] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GAIL2019Z00101]
WOS关键词	OXYGEN REDUCTION REACTION ; DOPED MESOPOROUS CARBON ; METAL-FREE CATALYSTS ; FREE ELECTRODE ; ACTIVE-SITES ; NITROGEN ; EVOLUTION ; ELECTROCATALYSTS ; NANOSHEETS ; RICH
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000591745300002
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Provincial Natural Science of Guangdong ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32358]
专题	中国科学院广州能源研究所
通讯作者	Yuan, Haoran
作者单位	1.Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, Key Lab Renewable Energy, Guangzhou, Peoples R China 2.Foshan Univ, Sch Mat & Energy, Foshan 528225, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Integrated Technol Urban & Rural Mines Exploi, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China 5.Changzhou Univ, Inst Urban & Rural Min, Sch Petrochem Engn, Changzhou 213164, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Denian,Chen, Huibing,Zhang, Yuyuan,et al. Upcycling biomass tar into highly porous, defective and pyridinic-n-enriched graphene nanohybrid as efficient bifunctional catalyst for Zn-air battery[J]. ELECTROCHIMICA ACTA,2020,364:10.
APA	Li, Denian,Chen, Huibing,Zhang, Yuyuan,Yang, Jizhang,Yuan, Haoran,&Chen, Yong.(2020).Upcycling biomass tar into highly porous, defective and pyridinic-n-enriched graphene nanohybrid as efficient bifunctional catalyst for Zn-air battery.ELECTROCHIMICA ACTA,364,10.
MLA	Li, Denian,et al."Upcycling biomass tar into highly porous, defective and pyridinic-n-enriched graphene nanohybrid as efficient bifunctional catalyst for Zn-air battery".ELECTROCHIMICA ACTA 364(2020):10.