第一次尝试EST,博费一番周折,终于发表,感谢合作者的支持!!

平时习惯于发ACB,对于EST的"套路"不是太感冒,但形势所逼,还是争取多发EST.

个人对这篇文章不是太满意,我想表达的很多内容无法表达出来

接下来可能有2-3篇的系列文章对EST这篇进行补充,一篇已经完成初稿,一篇已经完成数据,另外一篇刚开始实验

Phosphate-Functionalized CeO₂ Nanosheets for Efficient Catalytic Oxidation of Dichloromethane

Qiguang Dai,^{†, #} Zhiyong Zhang, ^{‡, #} Jiaorong Yan,^† Jinyan Wu,^† Grayson Johnson,^‡ Wei Sun,^† Xingyi Wang,^† Sen Zhang,^{*, ‡} and Wangcheng Zhan^{*, †}

ABSTRACT 

    Tuning acid and basic sites nature and profile in the surface of redox-active metal oxide nanostructures is a promising approach to constructing efficient catalyst for the oxidative removal of chlorinated volatile organic compounds (CVOCs). Herein, using the dichloromethane (DCM) oxidation as a model reaction, we report that phosphate (PO_x) Brønsted acid sites can be incorporated onto CeO₂ nanosheets (NSs) surface via an organophosphate-mediated route, which can effectively enhance the CeO₂’s catalytic performance by promoting the removal of chlorine poisoning species. Based on the systematic study of the correlation between PO_x composition, surface structure (acid and basic sites) and catalytic properties, we find that the incorporated Brønsted acid sites can also function to decrease the amount of medium-strong basic sites (O^2-), reducing the formation of chlorinated organic by-product monochloromethane (MCM) and leading to the desirable product HCl. At the optimized P/Ce ratio condition (0.2), the PO_x-CeO₂ NSs can perform a stable DCM conversion of 65-70% for over 10 hours at 250°C, and over 95% conversion at 300°C, superior to both pristine and other phosphate-modified CeO₂ NSs. Our work clearly identifies the critical role of acid and basic sites over functionalized CeO₂ for efficient catalytic CVOCs oxidation, guiding the future advanced catalyst design for environmental remediation.

已经online,速度真快

https://pubs.acs.org/doi/10.1021/acs.est.8b05002