NiFeP@CoCr-LDH：一种新型双功能催化剂，用于高性能的析氢和析氧反应

IF 6.3 3区工程技术 Q1 ENGINEERING, CHEMICAL Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-04-01 Epub Date: 2025-01-16 DOI:10.1016/j.jtice.2024.105941

Rahadian Zainul , Ali B.M. Ali , Prakash Kanjariya , Pawan Sharma , Rahul Thakur , Iskandar Shernazarov , Mohammed Al-Bahrani , A.R. Hussein , Abdulrahman A. Almehizia

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引用次数: 0

摘要

为了提高析氢反应（HER）和析氧反应（OER）的效率，采用电沉积法合成了一种新型NiFeP@CoCr-LDH杂化电催化剂。方法采用x射线衍射（XRD）、x射线光电子能谱（XPS）和扫描电子显微镜（SEM）等表征技术对合成材料的晶体结构和形貌进行表征。采用线性扫描伏安法、电化学阻抗谱法和时间电位法等电化学技术对合成电极的催化性能进行了研究。结果表明：NiFeP@CoCr-LDH催化剂在电流密度为10 mA cm−2时，HER的过电位为582 mV， OER的过电位为278 mV。这些结果超过了传统催化剂，包括HER的Pt和OER的尺寸稳定阳极（DSA），突出了NiFeP@CoCr-LDH体系的高活性。该催化剂在连续运行7000分钟内也表现出优异的稳定性。

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NiFeP@CoCr-LDH: A novel bifunctional catalyst for high-performance hydrogen and oxygen evolution reactions

Background

We developed a novel NiFeP@CoCr-LDH hybrid electrocatalyst, synthesized via electrodeposition, to enhance the efficiency of both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER).

Methods

Characterization techniques, such as X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) were employed to confirm the crystalline structure and morphology of the synthesized materials. Electrochemical techniques, including linier sweep voltammetry, electrochemical impedance spectroscopy, and chronopotentiometry, were applied to investigate the catalytic performance of synthesized electrodes.

Significant findings

The NiFeP@CoCr-LDH catalyst demonstrated remarkable electrocatalytic performance, with overpotentials of 582 mV for HER and 278 mV for OER at a current density of 10 mA cm⁻². These results surpass those of traditional catalysts, including Pt for HER and dimensionally stable anode (DSA) for OER, highlighting the high activity of the NiFeP@CoCr-LDH system. The catalyst also exhibited excellent stability over 7000 min of continuous operation.

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.