Consecutive H-2 Oxidation Mediated by Au2VO4+ Clusters
文献类型：期刊论文
| 作者 | Zhou, Xiao-Hong1; Li, Zi-Yu2; Ma, Tong-Mei1; He, Sheng-Gui2 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2016-05-19 |
| 卷号 | 120期号:19页码:10452-10459 |
| 英文摘要 | Laser-ablation generated gold-vanadium oxide cluster cations Au2VOx+ (x = 3, 4) were mass-selected by a quadrupole mass filter and interacted with H-2 in an ion trap reactor. The reactions were characterized by mass spectrometry and density functional theory calculations. The Au2VO4+ cluster can oxidize two H-2 molecules consecutively to produce Au2VO3+ and then Au2VO2+, the latter of which can react with one O-2 molecule to regenerate Au2VO4+. Therefore, a catalytic cycle for H-2 oxidation by O-2 mediated with the Au2VO2+ clusters can be proposed. The theoretical studies predict that the gold atoms in both Au2VO4+ and Au2VO3+ are the active adsorption sites and facilitate the heterolytic cleavage of H-2 in collaboration with the separate O-2 ions of the vanadium oxide support. The consecutively oxidative reactivity of Au2VO4+ is attributed to the activation and dissociation of the superoxide or peroxide species (O-2(center dot-) or O-2(2-)) into two reactive atomic oxygen species (O2-) with the promotional effect of gold atoms acting as electron donors. This study provides molecular-level insights into the elementary mechanisms of the H-2 catalytic oxidation on the surface. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/36132]  |
| 专题 | 化学研究所_分子动态与稳态结构实验室 |
| 作者单位 | 1.S China Univ Technol, Sch Chem & Chem Engn, 381 Wushan Rd, Guangzhou 510641, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Xiao-Hong,Li, Zi-Yu,Ma, Tong-Mei,et al. Consecutive H-2 Oxidation Mediated by Au2VO4+ Clusters[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016,120(19):10452-10459. |
| APA | Zhou, Xiao-Hong,Li, Zi-Yu,Ma, Tong-Mei,&He, Sheng-Gui.(2016).Consecutive H-2 Oxidation Mediated by Au2VO4+ Clusters.JOURNAL OF PHYSICAL CHEMISTRY C,120(19),10452-10459. |
| MLA | Zhou, Xiao-Hong,et al."Consecutive H-2 Oxidation Mediated by Au2VO4+ Clusters".JOURNAL OF PHYSICAL CHEMISTRY C 120.19(2016):10452-10459. |
入库方式： OAI收割
来源：化学研究所
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