Achieving efficient and robust catalytic reforming on dual-sites of Cu species
文献类型：期刊论文
| 作者 | Ma, K; Tian, Y; Zhao, ZJ; Cheng, QP; Ding, T; Zhang, J; Zheng, LR; Jiang, Z; Abe, T; Tsubaki, N |
| 刊名 | CHEMICAL SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 10期号:9页码:2578—2584 |
| 关键词 | DIMETHYL ETHER CU/SIO2 CATALYSTS COMPOSITE CATALYSTS HYDROGEN-PRODUCTION METHANOL COPPER OXALATE OXIDE PERFORMANCE STATE |
| ISSN号 | 2041-6520 |
| DOI | 10.1039/c9sc00015a |
| 文献子类 | 期刊论文 |
| 英文摘要 | Catalytic reforming provides a practical technique for on-board hydrogen production in fuel cell applications. The high energy density, easy transportation and non-toxicity of biomass-derived dimethyl ether (bio-DME) offer potential to replace methanol for on-board steam reforming (SR). Presently, the reaction mechanism over conventional Cu-based SR catalysts remains elusive, limiting the rational design of highly efficient reforming systems. Herein, we build a catalytic system for bio-DME SR with dual-sites of Cu species, i.e., Cu+ and Cu-0 sites, and achieve a record-high H-2 production rate of 1145 mol kg(cat)(-1) h(-1). Via regulating the ratios of the dual-sites of Cu, we clearly describe molecular understandings on SR. And we discover that the substantially boosted activity is induced by a new Cu+-determined reaction path substituting the conventional Cu-0-determined path. Intrinsically, Cu2O can act as a physical spacer and hydroxyl consumer to suppress the aggregation of metallic Cu species in SR. Due to the unique structure of metallic Cu surrounded by Cu2O, the catalyst exhibits robust catalytic performance even after severe thermal treatment. These findings open a new avenue for designing efficient catalytic reforming systems with commercial potential. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31456]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Tianjin Univ, Sch Chem Engn & Technol, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China; 2.Tianjin Key Lab Appl Catalysis Sci & Engn, Tianjin 300072, Peoples R China; 3.Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China; 4.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China; 5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201800, Peoples R China; 6.Univ Toyama, Hydrogen Isotope Res Ctr, Gofuku 3190, Toyama 9308555, Japan; 7.Univ Toyama, Sch Engn, Dept Appl Chem, Gofuku 3190, Toyama 9308555, Japan |
| 推荐引用方式 GB/T 7714 | Ma, K,Tian, Y,Zhao, ZJ,et al. Achieving efficient and robust catalytic reforming on dual-sites of Cu species[J]. CHEMICAL SCIENCE,2019,10(9):2578—2584. |
| APA | Ma, K.,Tian, Y.,Zhao, ZJ.,Cheng, QP.,Ding, T.,...&Li, XG.(2019).Achieving efficient and robust catalytic reforming on dual-sites of Cu species.CHEMICAL SCIENCE,10(9),2578—2584. |
| MLA | Ma, K,et al."Achieving efficient and robust catalytic reforming on dual-sites of Cu species".CHEMICAL SCIENCE 10.9(2019):2578—2584. |
入库方式： OAI收割
来源：上海应用物理研究所
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