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	Base-free hydrogenation of co2 to formic acid in water with an iridium complex bearing a n, n '-diimine ligand
	Lu, Sheng-Mei1; Wang, Zhijun1,2,3; Li, Jun1; Xiao, Jianliang2; Li, Can1
刊名	Green chemistry
	2016
卷号	18期号:16页码:4553-4558
ISSN号	1463-9262
DOI	10.1039/c6gc00856a
通讯作者	Li, can(canli@dicp.ac.cn)
英文摘要	Hydrogenation of co2 to formic acid using homogeneous catalysts is an attractive approach for the conversion and utilization of co2. to date, the efficiency of this transformation in water without base remains rather low. herein, we describe a highly efficient iridium catalyst, [cp* ir(n, n')cl] cl (n, n' = 2,2'-bi-1,4,5,6-tetrahydropyrimidine), for the direct hydrogenation of co2 to formic acid in water in the absence of a base, achieving an initial tof of over 13 000 h(-1) at 80 degrees c and 5.0 mpa of h-2/co2 (1 : 1) and a ton of over 10 000 at 40 degrees c and 7.6 mpa. the in situ h-1 nmr and reaction kinetics studies show that the reaction is limited in terms of turnover by the co2 insertion step. the kinetic isotope effect (kie) study was applied to understand the effect of water on the reaction, and the inverse kie results imply that the dissociation of the water molecule from the aqua iridium complex affects the kinetics of the catalytic cycle. this work extends the ligand type of the catalyst for co2 hydrogenation and provides a new strategy for catalyst design.
WOS关键词	HYPOXIA INDUCIBLE FACTOR ; CARBON-DIOXIDE ; HOMOGENEOUS HYDROGENATION ; CATALYTIC-HYDROGENATION ; AMBIENT CONDITIONS ; AQUEOUS-SOLUTION ; AQUA COMPLEXES ; RAW-MATERIAL ; VALUE CHAIN ; FORMATE
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000381440800019
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374386
专题	中国科学院大学
通讯作者	Li, Can
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Liverpool, Dept Chem, Liverpool Ctr Mat & Catalysis, Liverpool L69 7ZD, Merseyside, England 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lu, Sheng-Mei,Wang, Zhijun,Li, Jun,et al. Base-free hydrogenation of co2 to formic acid in water with an iridium complex bearing a n, n '-diimine ligand[J]. Green chemistry,2016,18(16):4553-4558.
APA	Lu, Sheng-Mei,Wang, Zhijun,Li, Jun,Xiao, Jianliang,&Li, Can.(2016).Base-free hydrogenation of co2 to formic acid in water with an iridium complex bearing a n, n '-diimine ligand.Green chemistry,18(16),4553-4558.
MLA	Lu, Sheng-Mei,et al."Base-free hydrogenation of co2 to formic acid in water with an iridium complex bearing a n, n '-diimine ligand".Green chemistry 18.16(2016):4553-4558.

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