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	Synergy of the catalytic activation on ni and the ceo2-tio2/ce2ti2o7 stoichiometric redox cycle for dramatically enhanced solar fuel production
	Ruan, Chongyan1,2; Huang, Zheng-Qing3; Lin, Jian1; Li, Lin1; Liu, Xiaoyan1; Tian, Ming1; Huang, Chuande1; Chang, Chun-Ran3; Li, Jun4,5; Wang, Xiaodong1
刊名	Energy & environmental science
	2019-02-01
卷号	12期号:2页码:767-779
ISSN号	1754-5692
DOI	10.1039/c8ee03069c
通讯作者	Chang, chun-ran(changcr@mail.xjtu.edu.cn) ; Wang, xiaodong(xdwang@dicp.ac.cn)
英文摘要	Solar thermochemical approaches to co2 and h2o splitting have emerged as an attractive pathway to solar fuel production. however, efficiently producing solar fuel with high redox kinetics and yields at lower temperature remains a major challenge. in this study, ni promoted ceria-titanium oxide (ceo2-tio2) redox catalysts were developed for highly effective thermochemical co2 and h2o splitting as well as partial oxidation of ch4 at 900 degrees c. unprecedented co and h-2 production rates and productivities of about 10-140 and 5-50 times higher than the current state-of-the-art solar thermochemical carbon dioxide splitting and water splitting processes were achieved with simultaneous close to complete ch4 conversions and high selectivities towards syngas. the underlying mechanism for the exceptional reaction performance was investigated by combined experimental characterization and density functional theory (dft) calculations. it is revealed that the metallic ni and the ni/oxide interface manifest catalytic activity for both ch4 activation and co2 or h2o dissociation, whereas ceo2-tio2 enhances the lattice oxygen transport via the ceo2-tio2/ce2ti2o7 stoichiometric redox cycle for ch4 partial oxidation and the subsequent co2 or h2o splitting promoted by catalytically active ni. such findings substantiate the significance of the synergy between the reactant activation by catalytic sites and the stoichiometric redox chemistry governing oxygen ion transport, paving the way for designing prospective materials for sustainable solar fuel production.
WOS关键词	METAL-SUPPORT INTERACTIONS ; TOTAL-ENERGY CALCULATIONS ; WATER-GAS SHIFT ; PARTIAL OXIDATION ; HYDROGEN-PRODUCTION ; PEROVSKITE OXIDES ; IRON-OXIDE ; IN-SITU ; METHANE ; CO2
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS类目	Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000459741700025
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2372689
专题	大连化学物理研究所
通讯作者	Chang, Chun-Ran; Wang, Xiaodong
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Shaanxi Key Lab Energy Chem Proc Intensificat, Xian 710049, Shaanxi, Peoples R China 4.Tsinghua Univ, Dept Chem, Minist Educ, Beijing 100084, Peoples R China 5.Tsinghua Univ, Key Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Ruan, Chongyan,Huang, Zheng-Qing,Lin, Jian,et al. Synergy of the catalytic activation on ni and the ceo2-tio2/ce2ti2o7 stoichiometric redox cycle for dramatically enhanced solar fuel production[J]. Energy & environmental science,2019,12(2):767-779.
APA	Ruan, Chongyan.,Huang, Zheng-Qing.,Lin, Jian.,Li, Lin.,Liu, Xiaoyan.,...&Wang, Xiaodong.(2019).Synergy of the catalytic activation on ni and the ceo2-tio2/ce2ti2o7 stoichiometric redox cycle for dramatically enhanced solar fuel production.Energy & environmental science,12(2),767-779.
MLA	Ruan, Chongyan,et al."Synergy of the catalytic activation on ni and the ceo2-tio2/ce2ti2o7 stoichiometric redox cycle for dramatically enhanced solar fuel production".Energy & environmental science 12.2(2019):767-779.

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