Single-Atom Pt Catalyst for Effective C-F Bond Activation via Hydrodefluorination

被引：79

作者：

Huang, Dahong ^{[1
,2
]}

de Vera, Glen Andrew ^{[2
,3
]}

Chu, Chiheng ^{[2
]}

Zhu, Qianhong ^{[2
]}

Stavitski, Eli ^{[4
]}

Mao, Jing ^{[5
]}

Xin, Huolin ^{[5
]}

Spies, Jacob A. ^{[6
,7
]}

Schmuttenmaer, Charles A. ^{[6
,7
]}

Niu, Junfeng ^{[8
]}

Haller, Gary L. ^{[2
]}

Kim, Jae-Hong ^{[2
]}

机构：

[1] Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China

[2] Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06520 USA

[3] Southern Nevada Water Author, Appl Res & Dev Ctr, Las Vegas, NV 89193 USA

[4] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA

[5] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA

[6] Yale Univ, Yale Energy Sci Inst, New Haven, CT 06520 USA

[7] Yale Univ, Dept Chem, 225 Prospect St, New Haven, CT 06520 USA

[8] Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Guangdong, Peoples R China

来源：

ACS CATALYSIS | 2018年 / 8卷 / 10期

基金：

美国国家科学基金会; 瑞士国家科学基金会;

关键词：

C-F bond activation; single-atom catalysis; hydrodefluorination; high platinum loading; silicon carbide; hydrogen spillover; PERFLUOROOCTANE SULFONATE PFOS; HYDROGEN-EVOLUTION; EFFICIENT; ACID; MECHANISMS; PLATINUM; CARBON; DEFLUORINATION; SURFACTANTS; ELECTRODE;

D O I：

10.1021/acscatal.8b02660

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study presents a single-atom Pt catalyst that achieves efficient C-F bond activation, which is a challenging reaction in both chemical synthesis and environmental remediation of recalcitrant fluorinated hydrocarbons. Up to 1.6 wt % Pt was loaded as a single-atom on SiC substrate (Pt-1/SiC) using a facile, scalable wet-chemical method developed based on anchor-site and photoreduction techniques. The high catalytic activity of Pt-1/SiC for hydrodefluorination of perfluorooctanoic acid, which is a select perfluorinated pollutant of significant environmental concern, is attributed to the effective hydrogen spillover from isolated Pt onto the SiC surface where the resulting Si-H bond further redistributes with the C-F bond to accomplish hydrodefluorination.

引用

页码：9353 / 9358

页数：11

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