中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
  4. 中科院强磁场科学中心
Surface polarization enhancement: high catalytic performance of Cu/CuOx/C nanocomposites derived from Cu-BTC for CO oxidation

文献类型：期刊论文

作者Zhang, Ruirui1,2; Hu, Lin3; Bao, Shouxin1,2; Li, Ran1,2; Gao, Lei3; Li, Ren1,2; Chen, Qianwang1,2,3
刊名JOURNAL OF MATERIALS CHEMISTRY A
出版日期2016-06-07
卷号4期号:21页码:8412-8420
DOI10.1039/c6ta01199c
文献子类Article
英文摘要Heterogeneous catalysts facilitate various chemical reactions through the changing of its surface charge density. However, the easy agglomeration of nano-sized heterogeneous catalysts and either expensive techniques or a multistep method involved in the fabrication of such hybrid structures makes developing low-cost, agglomeration-free heterogeneous catalysts highly desirable. Copper and its oxides have long been studied as catalysts towards CO oxidation. Few reports have appeared concerning the catalytic activity of Cu/Cu2O and Cu/CuO interface because the interfaces tend to form core-shell structures in oxygen atmospheres, making the interface buried inside the oxide layers. Herein, we designed Cu/Cu2O nanojunctions wrapped and supported by porous carbon through the direct annealing of a Cu-based metal-organic framework (Cu-BTC) in N-2, followed by testing its catalytic activity towards CO oxidation. In addition, CO oxidation reactions over Cu, Cu2O, CuO and the interface of Cu/Cu2O and Cu/CuO are studied via density functional theory (DFT) simulations. The catalyst shows a complete CO conversion temperature (T-100) of 155 degrees C under both 1 vol% and 5 vol% CO. In addition, it maintains long-term durability even after 40 h under 1 vol% CO. Our DFT calculations demonstrate that the significant increase in electron density on the Cu/Cu2O and Cu/CuO interface plays a pivotal rote in the enhancement of CO oxidation. Moreover, this study provides a new strategy for synthesizing carbon supported metal/metal oxide hybrid catalysts.
WOS关键词METAL-ORGANIC FRAMEWORK ; SUPPORT INTERACTIONS ; FACILE SYNTHESIS ; CARBON-MONOXIDE ; ANODE MATERIAL ; NOBLE-METALS ; NANOPARTICLES ; OXIDES ; MATRIX ; OXYGEN
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000378102400050
资助机构National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; National Natural Science Foundation of China(21271163 ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; CAS/SAFEA ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; China Postdoctoral Science Foundation(2015M571955) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; china scholarship council (CSC)(201500730008) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22457]  
专题合肥物质科学研究院_中科院强磁场科学中心
作者单位1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Hefei Inst Phys Sci, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Ruirui,Hu, Lin,Bao, Shouxin,et al. Surface polarization enhancement: high catalytic performance of Cu/CuOx/C nanocomposites derived from Cu-BTC for CO oxidation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(21):8412-8420.
APA Zhang, Ruirui.,Hu, Lin.,Bao, Shouxin.,Li, Ran.,Gao, Lei.,...&Chen, Qianwang.(2016).Surface polarization enhancement: high catalytic performance of Cu/CuOx/C nanocomposites derived from Cu-BTC for CO oxidation.JOURNAL OF MATERIALS CHEMISTRY A,4(21),8412-8420.
MLA Zhang, Ruirui,et al."Surface polarization enhancement: high catalytic performance of Cu/CuOx/C nanocomposites derived from Cu-BTC for CO oxidation".JOURNAL OF MATERIALS CHEMISTRY A 4.21(2016):8412-8420.

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。