用于高效电催化析氢反应的金属有机框架衍生的二维层状双氢氧化物超薄纳米片

Metal-organic framework-derived 2D layered double hydroxide ultrathin nanosheets for efficient electrocatalytic hydrogen evolution reaction.

作者信息

Song Jie, Chen Jeng-Lung, Xu Zichen, Lin Ryan Yeh-Yung

机构信息

State Key Laboratory of Fine Chemicals, Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning, 116024, China.

National Synchrotron Radiation Research Center, Hsinchu, 300092, Taiwan.

出版信息

Chem Commun (Camb). 2022 Sep 22;58(76):10655-10658. doi: 10.1039/d2cc03994j.

DOI:10.1039/d2cc03994j

PMID:36052976

Abstract

A facile approach to synthesize a Pt-doped metal-organic framework (MOF)-derived layered double hydroxide (LDH), denoted as Pt@CuFe-LDHm, is developed. It consists of highly dispersed 2D nanosheets, and the excellent properties (high specific surface area and large porosity) inherited from CuFe(dobpdc) bestow it with superior catalytic properties. Pt@CuFe-LDHm shows low overpotentials of 33, 47 and 120 mV at 10 mA cm with small Tafel slopes of 34.0, 50.2 and 85.6 mV dec in 1.0 M KOH, 0.1 M KOH and 1.0 M PBS. This work paves the way for high-performance and durable HER electrocatalysts in alkaline and neutral electrolytes.

摘要

开发了一种简便的方法来合成一种铂掺杂的金属有机框架（MOF）衍生的层状双氢氧化物（LDH），记为Pt@CuFe-LDHm。它由高度分散的二维纳米片组成，并且继承自CuFe(dobpdc)的优异性能（高比表面积和大孔隙率）赋予了它卓越的催化性能。在1.0 M KOH、0.1 M KOH和1.0 M PBS中，Pt@CuFe-LDHm在10 mA cm时显示出33、47和120 mV的低过电位，塔菲尔斜率分别为34.0、50.2和85.6 mV dec。这项工作为在碱性和中性电解质中制备高性能、耐用的析氢反应（HER）电催化剂铺平了道路。