NiFeCoAlOOH纳米颗粒修饰钛掺杂纳米多孔赤铁矿光阳极用于高效光电化学水分解  

Titanium Doped Nanoporous Hematite Photoanode Modified with NiFeCoAlOOH Nanoparticles for Efficient Photoelectrochemical Water Splitting

作　　者：Antony Charles Minja 王涛涛 曹虹云 杜平武[1] Antony Charles Minja;Taotao Wang;Hongyun Cao;Pingwu Du(Hefei National Laboratory for Physical Sciences at the Microscale,iChEM,CAS Key Laboratory of Materials for Energy Conversion,Department of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学技术大学材料科学与工程系,中国科学院能量转换材料重点实验室,合肥微尺度物质科学国家研究中心,能源材料化学协同创新中心,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2023年第3期349-359,I0046-I0058,I0101,共25页化学物理学报（英文）

基　　金：supported by the National Key Research and Development Program of China(No.2017YFA0402800);the National Natural Science Foundation of China(No.51772285 and No.21971229);the Fundamental Research Funds for the Central Universities,and CAS Belt and Road Scholarship for International Students.

摘　　要：本文利用一种简单的化学配体控制氧化方法,将NiFeCoAlOOH纳米颗粒负载在钛掺杂的纳米多孔赤铁矿光阳极上(Ti-PH),并将其用于光电催化水分解、由于NiFeCoAlOOH能够帮助提升Ti-PH光阳极的析氧反应动力学并且降低表面电荷转移电阻,修饰后的光阳极相对于1.23 V us.RHE时具有2.46 mA/cm^(2)的光电流密度,并且与Ti-PH或空白赤铁矿光阳极相比具有更好的稳定性.此外,对比钛掺杂的纳米多孔赤铁矿光阳极,NiFeCoAlOOH修饰后的光电流的起始电位负移了~60 mV.这项工作为设计高性能、稳定、廉价的光电化学电池提供了一种具有潜力的催化剂修饰方法.Herein,we present the decoration of NiFeCoAlOOH nanoparticles onto titanium doped nanoporous hematite(Ti-PH)utilizing a simple electroless ligand-controlled oxidation method for photoelectrochemical water splitting.Owing to the improved oxygen evolution reaction kinetics and reduced charge transfer resistance,the resulting Ti-PH/NiFeCoAlOOH photoanode presents an excellent photocurrent density of 2.46 mA/cm2 at 1.23 V vs.RHE and good stability compared to Ti-PH or bare hematite.Furthermore,the onset potential of the photocurrent density is shifted cathodically by∼60 mV with reference to the titanium doped nanoporous hematite.This work offers a promising method for designing high-performance,stable,and inexpensive catalysts for photoelectrochemical applications.

关 键 词：光电催化 光阳极 催化剂 过电势 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TQ116.2[化学工程—无机化工]