电化学析氢反应中CeOx/ N-Ti3C2Ty异质结Ce-O-Ti界面桥的设计

IF 4.6 2区化学 Q2 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry Letters Pub Date : 2025-09-10 DOI:10.1021/acs.jpclett.5c02063

Hau Quoc Pham, Quyen Huynh and Tai Thien Huynh*,

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引用次数: 0

摘要

本文采用超声辅助水热方法在CeOx/ N-Ti3C2Ty异质结中构建了Ce-O-Ti界面桥，作为高效的无pt析氢电催化剂。非均相Ce-O-Ti桥和氧空位的协同作用促进了水的解离，从而大大降低了析氢反应（HER）的能垒。最佳的CeOx/ N-Ti3C2Ty材料只需要很小的过电位（51.12 mVRHE at 10 mA cm-2），具有低的Tafel斜率（51.87 mV dec-1）和长期稳定性，在至少50小时的测试后，结构和形态性能的变化可以忽略不计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Designing Ce–O–Ti Interface Bridge in CeOx/N–Ti3C2Ty Heterojunction for Electrochemical Hydrogen Evolution Reaction

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Designing Ce–O–Ti Interface Bridge in CeOx/N–Ti3C2Ty Heterojunction for Electrochemical Hydrogen Evolution Reaction

We herein construct the Ce–O–Ti interface bridge in the CeO_x/N–Ti₃C₂T_y heterojunction through an ultrasonic-assisted hydrothermal route as an efficient Pt-free hydrogen evolution electrocatalyst. The synergistic contribution of the heterogeneous Ce–O–Ti bridge and oxygen vacancies boosts the water dissociation and thus drastically reduces energy barriers of the hydrogen evolution reaction (HER). The optimal CeO_x/N–Ti₃C₂T_y material requires only a small overpotential (51.12 mV_RHE at 10 mA cm^–2) and has a low Tafel slope (51.87 mV dec^–1) and long-term stability with negligible changes in structural and morphological properties after at least 50 h of testing.

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来源期刊

The Journal of Physical Chemistry Letters CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

9.60

自引率

7.00%

发文量

1519

审稿时长

1.6 months

期刊介绍： The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.