Hydrogenolysis of methyl glycolate to ethanol over a Pt-Cu/SiO2 single-atom alloy catalyst: a further step from cellulose to ethanol

doi:10.1039/c8gc00309b

	Hydrogenolysis of methyl glycolate to ethanol over a Pt-Cu/SiO2 single-atom alloy catalyst: a further step from cellulose to ethanol
	Yang, Chaojun 1,2; Miao, Zhili 2; Zhang, Fan 1,2; Li, Lin 2; Liu, Yanting 2; Wang, Aiqin 2; Zhang, Tao 2
刊名	GREEN CHEMISTRY
	2018-05-07
卷号	20 期号:9 页码:2142-2150
ISSN号	1463-9262
DOI	10.1039/c8gc00309b
文献子类	Article
英文摘要	Cellulosic ethanol can be produced via a chemocatalytic approach in which cellulose is first converted into methyl glycolate (MG) in methanol using a W-based catalyst under an oxygen atmosphere, and the formed MG is then hydrogenated to ethanol over a supported copper catalyst. Aiming at enhancing the ethanol selectivity for this two-step approach, we developed a 0.1Pt-Cu/SiO2 single-atom alloy catalyst in the present study, where Pt was isolated as single atoms, and formed a Pt-Cu alloy phase. The characterizations of the catalyst via in situ XRD, FTIR, CO-adsorbed DRIFTS, N2O chemisorption, and XPS revealed that the introduction of 0.1 wt% Pt into the Cu/SiO2 catalyst resulted in an improvement in the Cu dispersion and an increase in the Cu+/Cu-0 ratio. Moreover, Pt single atoms promoted the activation of hydrogen. As a consequence, the catalytic activity and selectivity of ethanol were enhanced; the maximum selectivity of ethanol (76.7%) was obtained at 503 K. Over 700 h on stream, the catalyst did not show any deactivation, demonstrating a promising stability.
WOS关键词	DIMETHYL OXALATE HYDROGENATION ; LOW-TEMPERATURE HYDROGENATION ; SUPPORTED COPPER-CATALYSTS ; ETHYLENE-GLYCOL ; CU/SIO2 CATALYSTS ; MOLYBDENUM CARBIDE ; PERFORMANCE ; OXIDE ; BIOMASS ; SITES
WOS研究方向	Chemistry ; Science & Technology - Other Topics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000432203600025
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167132]
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	Wang, Aiqin; Zhang, Tao
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, iChEM Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Yang, Chaojun,Miao, Zhili,Zhang, Fan,et al. Hydrogenolysis of methyl glycolate to ethanol over a Pt-Cu/SiO2 single-atom alloy catalyst: a further step from cellulose to ethanol[J]. GREEN CHEMISTRY,2018,20(9):2142-2150.
APA	Yang, Chaojun.,Miao, Zhili.,Zhang, Fan.,Li, Lin.,Liu, Yanting.,...&Zhang, Tao.(2018).Hydrogenolysis of methyl glycolate to ethanol over a Pt-Cu/SiO2 single-atom alloy catalyst: a further step from cellulose to ethanol.GREEN CHEMISTRY,20(9),2142-2150.
MLA	Yang, Chaojun,et al."Hydrogenolysis of methyl glycolate to ethanol over a Pt-Cu/SiO2 single-atom alloy catalyst: a further step from cellulose to ethanol".GREEN CHEMISTRY 20.9(2018):2142-2150.