Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen

引用本文: Shuvo Jit Datta, Kyung Byung Yoon. Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen[J]. 催化学报, 2015, 36(6): 897-905. doi: 10.1016/S1872-2067(15)60864-6 shu

Citation: Shuvo Jit Datta, Kyung Byung Yoon. Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen[J]. Chinese Journal of Catalysis, 2015, 36(6): 897-905. doi: 10.1016/S1872-2067(15)60864-6 shu

Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen

Shuvo Jit Datta ,
Kyung Byung Yoon ^,

通讯作者: Kyung Byung Yoon,Tel: +082-2-7152569; Fax: +082-2-7064269; E-mail: yoonkb@sogang.ac.kr

基金项目:
This work was supported by the Ministry of Science, ICT and Future Planning through the National Research Foundation of Korea (no. 2009-0093886, no. 2012R1A2A3A01009806). (no. 2009-0093886, no. 2012R1A2A3A01009806)

摘要: Pristine ETS-10 and AM-6 and their Co²⁺-exchanged forms were prepared, and their catalytic activities toward the oxidation of styrene in oxygen atmosphere were studied in dimethylformamide. The catalysts were denoted as Co-E10-n (n = 0, 9, 26, 68, 81) and Co-A6-m (m = 0, 8, 23, 63, 79), where n and m denote the degree of Co²⁺ exchange. The products of the oxidation process were identified as styrene epoxide (E) and benzaldehyde (B). Both the pristine forms, ETS-10 (Co-E10-0) and AM-6 (Co-A6-0), and Co²⁺-exchanged forms displayed catalytic activities. With increasing n or m, the conversion, and hence the rate, increased. Specifically, the rates varied from 6.1 to 12.5 mmol·g^-1·h^-1 with increasing n (Co-E10-n catalysts) and from 5.4 to 12.4 mmol·g^-1·h^-1 with increasing m (Co-A6-m catalysts). In contrast, the E/B ratio decreased with increasing n or m. More specifically, the E/B ratio decreased from 2.1 to 0.1 with increasing n from 0 to 81 (Co-E10-n catalysts) and from 1.3 to 0.1 with increasing m from 0 to 79 (Co-A6-m catalysts). Co-E10-9 displayed the highest E yield and Co-A6-79 generated the highest B yield. The highest turnover frequency obtained was 36.3 Co^-1·h^-1, which was the highest one obtained among those obtained for the Co²⁺-exchanged zeolites and mesoporous silica reference materials studied in this work.

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English

Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen

Shuvo Jit Datta ,
Kyung Byung Yoon ^,

1.
Korea Center for Artificial Photosynthesis, Center for Nano Materials, Department of Chemistry, Sogang University, Seoul 121-742, Republic of Korea

Corresponding author: Kyung Byung Yoon,Tel: +082-2-7152569; Fax: +082-2-7064269; E-mail: yoonkb@sogang.ac.kr

Received Date: 02 March 2015
Available Online: 20 June 2015
Fund Project:
This work was supported by the Ministry of Science, ICT and Future Planning through the National Research Foundation of Korea (no. 2009-0093886, no. 2012R1A2A3A01009806).

Abstract: Pristine ETS-10 and AM-6 and their Co²⁺-exchanged forms were prepared, and their catalytic activities toward the oxidation of styrene in oxygen atmosphere were studied in dimethylformamide. The catalysts were denoted as Co-E10-n (n = 0, 9, 26, 68, 81) and Co-A6-m (m = 0, 8, 23, 63, 79), where n and m denote the degree of Co²⁺ exchange. The products of the oxidation process were identified as styrene epoxide (E) and benzaldehyde (B). Both the pristine forms, ETS-10 (Co-E10-0) and AM-6 (Co-A6-0), and Co²⁺-exchanged forms displayed catalytic activities. With increasing n or m, the conversion, and hence the rate, increased. Specifically, the rates varied from 6.1 to 12.5 mmol·g^-1·h^-1 with increasing n (Co-E10-n catalysts) and from 5.4 to 12.4 mmol·g^-1·h^-1 with increasing m (Co-A6-m catalysts). In contrast, the E/B ratio decreased with increasing n or m. More specifically, the E/B ratio decreased from 2.1 to 0.1 with increasing n from 0 to 81 (Co-E10-n catalysts) and from 1.3 to 0.1 with increasing m from 0 to 79 (Co-A6-m catalysts). Co-E10-9 displayed the highest E yield and Co-A6-79 generated the highest B yield. The highest turnover frequency obtained was 36.3 Co^-1·h^-1, which was the highest one obtained among those obtained for the Co²⁺-exchanged zeolites and mesoporous silica reference materials studied in this work.

Key words:

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Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen

通讯作者: Kyung Byung Yoon,Tel: +082-2-7152569; Fax: +082-2-7064269; E-mail: yoonkb@sogang.ac.kr

English

Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen

Corresponding author: Kyung Byung Yoon,Tel: +082-2-7152569; Fax: +082-2-7064269; E-mail: yoonkb@sogang.ac.kr

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen

通讯作者: Kyung Byung Yoon,Tel: +082-2-7152569; Fax: +082-2-7064269; E-mail: yoonkb@sogang.ac.kr

English

Co-ETS-10 and Co-AM-6 as active catalysts for the oxidation of styrene to styrene oxide and benzaldehyde using molecular oxygen

Corresponding author: Kyung Byung Yoon,Tel: +082-2-7152569; Fax: +082-2-7064269; E-mail: yoonkb@sogang.ac.kr

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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