温和条件下Au／HY催化剂催化氧化丙三醇制丙醇二酸

研究了不同载体负载的Au催化剂催化丙三醇水相选择性氧化制丙醇二酸.与Au/CeO2, Au/AC, Au/REY和Au/NaY催化剂相比, Au/HY上获得了高收率的丙醇二酸.在60℃和0.3 MPa氧气压力下,丙三醇转化率达98%,丙醇二酸收率为80%.表征结果表明,小尺寸的Au纳米颗粒对生成丙醇二酸有明显促进作用；反应过程中丙三醇先被催化氧化生成甘油酸,再被进一步氧化生成丙醇二酸....

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Bibliographic Details
Published in催化学报 Vol. 35; no. 10; pp. 1653 - 1660
Main Author 蔡嘉莹 马红 张俊杰 杜中田 黄义争 高进 徐杰
Format Journal Article
LanguageChinese
Published 中国科学院大连化学物理研究所，催化基础国家重点实验室，洁净能源国家实验室筹，辽宁大连116023 2014
中国科学院大学，北京100049%中国科学院大连化学物理研究所，催化基础国家重点实验室，洁净能源国家实验室筹，辽宁大连116023
Subjects
丙三醇
丙醇二酸
催化氧化
金
金
Gold
Catalytic oxidation
丙醇二酸
催化氧化
丙三醇
Glycerol
Tartronic acid
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Summary:研究了不同载体负载的Au催化剂催化丙三醇水相选择性氧化制丙醇二酸.与Au/CeO2, Au/AC, Au/REY和Au/NaY催化剂相比, Au/HY上获得了高收率的丙醇二酸.在60℃和0.3 MPa氧气压力下,丙三醇转化率达98%,丙醇二酸收率为80%.表征结果表明,小尺寸的Au纳米颗粒对生成丙醇二酸有明显促进作用；反应过程中丙三醇先被催化氧化生成甘油酸,再被进一步氧化生成丙醇二酸.
Bibliography:Catalytic oxidation;Glycerol;Gold;Tartronic acid
Jiaying Cai H ong Ma Junjie Zhang , Zhongtian Du , Yizheng Huang , Jin Gao , Jie Xu （1 Dalian National Laboratoryfor Clean Energy, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China ;2 University of Chinese Academy of Sciences, Beijing 100049, China）
Gold nanoclusters or nanoparticles on various supports （CeO2, activated carbon, HY, REY, and NaY） were investigated for glycerol oxidation in the aqueous phase under mild conditions. Compared with other catalysts, Au/HY showed remarkable catalytic performance in forming dicarboxylic acid （tartronic acid） over the monocarboxylic acid （glyceric acid） or the C-C cleavage product （oxalic acid）. Au/HY achieved 98% conversion of glycerol and 80% yield oftartronic acid at 60 ℃ under 0.3 MPa 02. Further characterization showed that the small size of Au clusters is the key factor for the high oxidation performance. In situ Fourier transform infr
ISSN:0253-9837
1872-2067
DOI:10.1016/S1872-2067(14)60132-7