Facile Decoration of Ultra-fine Pd Nanoparticles on Co(OH)2 Nanowire Arrays via an Etching-deposition Process for Highly Efficient Electrocatalytic Hydrodechlorination of 2,4-dichlorophenol

被引：0

作者：

Gao, Qing ^{[1
]}

Yu, Yingxue ^{[1
]}

Wang, Chengyun ^{[1
]}

Xiang, Rui ^{[1
]}

Lu, Hao ^{[1
]}

机构：

[1] Chongqing Univ Sci &Technol, Coll Chem & Chem Engn, East Univ Town Rd, Chongqing 401331, Peoples R China

来源：

CATALYSIS LETTERS | 2025年 / 155卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Electrocatalysis; Hydrodechlorination; Pd-based catalyst; 2,4-dichlorophenol; Nanowire arrays; OXIDE; METAL;

D O I：

10.1007/s10562-024-04889-3

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：

Designing an efficient Pd-based catalyst with high atom utilization efficiency is a pressing priority, presenting a significant challenge for the practical deployment of electrocatalytic hydrodechlorination (EHDC), a promising method for degrading hazardous chlorophenols (CPs). Herein, a hybrid Pd/Co(OH)2/NF electrode for the dechlorination of 2,4- dichlorophenol (2,4-DCP) is fabricated by a newly developed etching-deposition approach. Physical characterizations demonstrate that ultra-fine Pd nanoparticles (1.57 +/- 0.29 nm) accompany with Pd2+ hydroxides are uniformly deposited on the surface of Co(OH)2 nanowire arrays. EHDC tests on Pd/Co(OH)2/NF show an impressive catalytic performance with a 94.5% removal efficiency within 2 h, fast reaction kinetics (0.024 min- 1) and remarkable current efficiency (55.4%), highly competitive with literature reports. Mechanism investigations indicate that the even distribution of Pd nanoparticles and coexistence of Pd2+ sites facilitate the production of active H* and activation of C-Cl, contributing to the improvement of activity.

引用

页数：15