Selectivity Regulation in Au-Catalyzed Nitroaromatic Hydrogenation by Anchoring Single-Site Metal Oxide Promoters
文献类型：期刊论文
| 作者 | Zhao, JX; Chen, CQ; Xing, CH; Jiao, ZF; Yu, MT; Mei, BB; Yang, J; Zhang, BY; Jiang, Z; Qin, Y |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2020 |
| 卷号 | 10期号:4页码:2837-2844 |
| ISSN号 | 2155-5435 |
| 关键词 | ATOMIC LAYER DEPOSITION NITRO-COMPOUNDS CHEMOSELECTIVE HYDROGENATION ORGANIC FRAMEWORKS REDUCTION NANOPARTICLES CO OXIDATION NANOSTRUCTURES NITROARENES |
| DOI | 10.1021/acscatal.9b04855 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Precise control of selectivity in hydrogenation reactions is a long-standing challenge. Surface decoration of nanocatalysts with transition-metal oxide nanoparticles (NPs) is an effective strategy to tailor the catalytic selectivity but generally at the expense of activity due to the blocking of active sites. Here, we report that constructing single-site metal oxide modifiers (NiO, CoOx, or FeOx), on supported Au NPs by atomic layer deposition (ALD) can regulate their catalytic selectivity for nitroaromatic hydrogenation. The coverage of single-site metal oxide can be precisely tuned by altering the number of ALD cycles. The Au/TiO2 decorated with five cycles of NiO (Ni: 0.32 wt %) in the style of a single site can efficiently change the product selectivity from azo to azoxy compounds without significantly blocking the surface active sites. The density functional theory calculations indicate that the azoxybenzene bonded to the single-site NiO-decorated Au(111) with a larger adsorption energy, which inhibits the overhydrogenation of azoxybenzene and results in high azoxybenzene selectivity. Our work has demonstrated a general and efficient way to regulate the reaction selectivity of metal nanocatalysts by anchoring single-site metal oxide promoters. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33126]  |
| 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.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 3.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201203, Peoples R China 4.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 5.Henan Univ Sci & Technol, Coll Phys & Engn, Luoyang 471023, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, JX,Chen, CQ,Xing, CH,et al. Selectivity Regulation in Au-Catalyzed Nitroaromatic Hydrogenation by Anchoring Single-Site Metal Oxide Promoters[J]. ACS CATALYSIS,2020,10(4):2837-2844. |
| APA | Zhao, JX.,Chen, CQ.,Xing, CH.,Jiao, ZF.,Yu, MT.,...&Qin, Y.(2020).Selectivity Regulation in Au-Catalyzed Nitroaromatic Hydrogenation by Anchoring Single-Site Metal Oxide Promoters.ACS CATALYSIS,10(4),2837-2844. |
| MLA | Zhao, JX,et al."Selectivity Regulation in Au-Catalyzed Nitroaromatic Hydrogenation by Anchoring Single-Site Metal Oxide Promoters".ACS CATALYSIS 10.4(2020):2837-2844. |
入库方式： OAI收割
来源：上海应用物理研究所
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