NiFeCoAlOOH纳米粒子修饰掺杂钛纳米多孔赤铁矿光阳极用于高效光电化学水分解

IF 1.2 4区化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

Chinese Journal of Chemical Physics Pub Date : 2023-06-01 DOI:10.1063/1674-0068/cjcp2104071

Antony Minja, Taotao Wang, Hongyun Cao, Pingwu Du

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引用次数: 0

摘要

在此，我们利用一种简单的化学配体控制氧化方法，将NiFeCoAlOOH纳米颗粒装饰在掺杂钛的纳米多孔赤铁矿(Ti-PH)上，用于光电化学水分解。由于Ti-PH/NiFeCoAlOOH光阳极的析氧反应动力学得到改善，电荷转移阻力降低，相对于RHE在1.23 V时具有2.46 mA/cm2的光电流密度，并且与Ti-PH或裸赤铁矿相比具有良好的稳定性。此外，参考掺杂钛的纳米多孔赤铁矿，光电流密度的起始电位阴极移动了~ 60 mV。这项工作为设计高性能、稳定、廉价的光电化学催化剂提供了一种很有前途的方法。

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Titanium doped nanoporous hematite photoanode modified with NiFeCoAlOOH nanoparticles for efficient photoelectrochemical water splitting

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.

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来源期刊

Chinese Journal of Chemical Physics 物理-物理：原子、分子和化学物理

CiteScore

1.90

自引率

10.00%

发文量

2763

审稿时长

3 months

期刊介绍： Chinese Journal of Chemical Physics (CJCP) aims to bridge atomic and molecular level research in broad scope for disciplines in chemistry, physics, material science and life sciences, including the following: Theoretical Methods, Algorithms, Statistical and Quantum Chemistry Gas Phase Dynamics and Structure: Spectroscopy, Molecular Interactions, Scattering, Photochemistry Condensed Phase Dynamics, Structure, and Thermodynamics: Spectroscopy, Reactions, and Relaxation Processes Surfaces, Interfaces, Single Molecules, Materials and Nanosciences Polymers, Biopolymers, and Complex Systems Other related topics