CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Intrinsically Active Surface in a Pt/gamma-Mo2N Catalyst for the Water-Gas Shift Reaction: Molybdenum Nitride or Molybdenum Oxide?
Zhang, ZS; Fu, Q; Xu, K; Wang, WW; Fu, XP; Zheng, XS; Wu, K; Ma, C; Si, R; Jia, CJ; Sun, LD; Yan, CH
2020
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN0002-7863
Volume142Issue:31Pages:13362-13371
Subtype期刊论文
AbstractApart from active metals, supports also contribute significantly to the catalytic performance of supported metal catalysts. On account of the formed strain and defects, the heterostructured surface of the support may play a crucial role to activate the reactant molecules, while it is usually neglected. In this work, the Pt/gamma-Mo2N catalyst was prepared via a facile solution method. This Pt/gamma-Mo2N catalyst showed excellent activity and stability for catalyzing the water-gas shift (WGS) reaction. The reaction rates at 240 degrees C were 16.5 mol(CO), mol(Pt)(-1)s(-1) in product-free gas and 5.36 mol(CO), mol(Pt)(-1)s(-1) in full reformate gas, which were almost 20 times that of the catalysts reported. It is found that the molybdenum species in the surface of the Pt/gamma-Mo2N catalyst is molybdenum oxide as MoO3; . This surface MoO3 is very easily reduced even at room temperature, and it transformed into highly distorted MoOx(2 < x < 3) in the WGS reaction. The MoOx on the catalyst surface greatly enhanced the capability of generating active oxygen vacancies to dissociate H2O molecules, which induced unexpectedly superior catalytic performance. Therefore, the intrinsically active surface in the Pt/gamma-Mo2N catalyst for the WGS reaction was molybdenum oxide as MoOx (2 < x < 3).
KeywordCARBIDE CERIA OXIDATION HETEROSTRUCTURES CONVERSION PROGRESS METHANE GOLD AU
DOI10.1021/jacs.9b11088
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32954
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Shandong Univ, Key Lab Colloid & Interface Chem, Key Lab Special Aggregated Mat, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
3.Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
4.Univ Sci & Technol China, Dept Chem Phys, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China
5.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Zhang, ZS,Fu, Q,Xu, K,et al. Intrinsically Active Surface in a Pt/gamma-Mo2N Catalyst for the Water-Gas Shift Reaction: Molybdenum Nitride or Molybdenum Oxide?[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2020,142(31):13362-13371.
APA Zhang, ZS.,Fu, Q.,Xu, K.,Wang, WW.,Fu, XP.,...&Yan, CH.(2020).Intrinsically Active Surface in a Pt/gamma-Mo2N Catalyst for the Water-Gas Shift Reaction: Molybdenum Nitride or Molybdenum Oxide?.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,142(31),13362-13371.
MLA Zhang, ZS,et al."Intrinsically Active Surface in a Pt/gamma-Mo2N Catalyst for the Water-Gas Shift Reaction: Molybdenum Nitride or Molybdenum Oxide?".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 142.31(2020):13362-13371.
Files in This Item: Download All
File Name/Size DocType Version Access License
Intrinsically Active(10473KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, ZS]'s Articles
[Fu, Q]'s Articles
[Xu, K]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, ZS]'s Articles
[Fu, Q]'s Articles
[Xu, K]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, ZS]'s Articles
[Fu, Q]'s Articles
[Xu, K]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Intrinsically Active Surface in a Ptgamma-Mo2N Catalyst for the Water-Gas Shift Reaction Molybdenum Nitride or Molybdenum Oxide.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.