Hydrochar-Supported Bimetallic Ni-Cu Nanocatalysts for Sustainable H-2 Production

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	Hydrochar-Supported Bimetallic Ni-Cu Nanocatalysts for Sustainable H-2 Production
	Gai, Chao ; Yang, Tianxue ; Liu, Hongjun ; Liu, Zhengang ; Jiao, Wentao
刊名	ACS APPLIED NANO MATERIALS
	2019-11-01
卷号	2 期号:11 页码:7279-7289
关键词	hydrogen production hydrothermal carbonization heterogeneous catalysis metal nanoparticle sorption-enhanced steam reforming hydrochar
ISSN号	2574-0970
英文摘要	Noble-metal-free heterometallic Ni-Cu nanoparticles (NPs) supported on hydrochar have been developed for CO2 sorption-enhanced steam reforming of acetic acid (AC) to enhance H-2 production. Among all noble-metal-free heterometallic nanoparticles catalysts, the catalyst with a Ni:Cu molar ratio of 6:4 displayed the best catalytic performance in AC steam reforming with exceptional 95% of H-2 concentration. The electronic structure change and interfacial interaction between metal NPs and hydrochar surface as a function of Ni:Cu molar ratio were elucidated by multiple techniques. The electronic transitions in the metal- hydrochar interface could be effectively modulated by thermal treatment or adjusting the molar ratio of metal precursors. Moreover, the redox-active moieties (e.g., quinones and hydroquinones) on hydrochar surface were found to not only facilitate the interaction of metal-support but also endow the metal NPs with extraordinary electronic properties via the formation of conjugated metal-carbon bonds. This work provided a unique, effective synthetic platform for the facile self-assembly functionalization and engineering of noble-metal-free heterometallic NP catalysts with alloy structures. This strategy could be exploited for exact manipulation of properties and applications of more complicated metal nanoparticles via the interfacial modification of the hydrothermal carbon through the formation of diverse metal-nonmetal bonds.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43173]
专题	生态环境研究中心_固体废弃物处理与资源化实验室
作者单位	1.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, 18 Shuangqing Rd, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Gai, Chao,Yang, Tianxue,Liu, Hongjun,et al. Hydrochar-Supported Bimetallic Ni-Cu Nanocatalysts for Sustainable H-2 Production[J]. ACS APPLIED NANO MATERIALS,2019,2(11):7279-7289.
APA	Gai, Chao,Yang, Tianxue,Liu, Hongjun,Liu, Zhengang,&Jiao, Wentao.(2019).Hydrochar-Supported Bimetallic Ni-Cu Nanocatalysts for Sustainable H-2 Production.ACS APPLIED NANO MATERIALS,2(11),7279-7289.
MLA	Gai, Chao,et al."Hydrochar-Supported Bimetallic Ni-Cu Nanocatalysts for Sustainable H-2 Production".ACS APPLIED NANO MATERIALS 2.11(2019):7279-7289.