一种OER电催化剂及其制备方法
By combining an amorphous nickel-iron-boron alloy with crystalline nickel phosphide in a heterostructure, the problems of low conductivity and few active sites in nickel-iron-based nanomaterials were solved, and an efficient and stable water electrolysis hydrogen production process was achieved.
CN117107290BActive Publication Date: 2026-07-17JILIN UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JILIN UNIVERSITY
- Filing Date
- 2023-08-29
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The low conductivity and limited number of active sites of existing nickel-iron-based nanomaterials restrict their application in hydrogen production through water electrolysis.
Method used
A heterostructure combining amorphous nickel-iron-boron alloy and crystalline nickel phosphide is used to form an amorphous NiFeB thin film through in-situ reconstruction, thereby improving the electrocatalytic active sites and charge transport capacity.
Benefits of technology
It exhibits excellent electrocatalytic OER activity and stability in alkaline electrolytes, and can operate stably for a long time at high current densities, thus reducing the cost of hydrogen production.
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Figure CN117107290B_ABST
Abstract
本发明提供了一种非晶镍铁硼合金与晶体磷化镍相结合的异质结构OER电催化剂材料及其制备方法。该方法所用的原料价格低廉、储量丰富且合成方法简单，所得到的非晶镍铁硼合金与晶体磷化镍相结合的异质结构电催化材料具有丰富的活性位点和快速的电荷传输能力与扩散动力学，在碱性电解质中表现出优异的电催化OER活性及稳定性，对于电解水的商业化应用具有一定指导意义。
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