EN界面结构CeO2@FeOOH电解水催化剂的设计与制备
Rational Design and Fabrication of CeO2@FeOOH Hetrotructure as Anodic Electrocatalyst for Water Splitting
- 能源研究与管理 2022年第1期 页码：41-48
- 作者机构：
1. 江西省科学院能源研究所
2. 江西省碳中和研究中心 3. 江西省碳中和技术创新中心
3. 武汉船用电力推进装置研究所
- 作者简介：
- 基金信息：
DOI：10.16056/j.2096-7705.2022.01.007
中图分类号： TQ116.21;TQ426-
纸质出版：2022
- 稿件说明：
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黎建刚, 徐凯, 黄振雄, 等. 界面结构CeO2@FeOOH电解水催化剂的设计与制备[J]. 能源研究与管理, 2022,(1):41-48.
黎建刚, 徐凯, 黄振雄, et al. Rational Design and Fabrication of CeO2@FeOOH Hetrotructure as Anodic Electrocatalyst for Water Splitting[J]. 2022, (1): 41-48.
黎建刚, 徐凯, 黄振雄, 等. 界面结构CeO2@FeOOH电解水催化剂的设计与制备[J]. 能源研究与管理, 2022,(1):41-48. DOI： 10.16056/j.2096-7705.2022.01.007.
黎建刚, 徐凯, 黄振雄, et al. Rational Design and Fabrication of CeO2@FeOOH Hetrotructure as Anodic Electrocatalyst for Water Splitting[J]. 2022, (1): 41-48. DOI： 10.16056/j.2096-7705.2022.01.007.
摘要
为开发出一种高效且低能耗的电解水制氢催化剂，引入界面工程调控手段，构筑了包含CeO
2
和FeOOH界面结构的纳米复合材料CeO
2
@FeOOH。首先通过一步水热法制备了CeO
2
纳米结构，随后以其为基底材料，采用水浴法，以FeSO
4
·7H
2
O作为铁源，Fe
2+
水解并被氧化最终于CeO
2
表面形成FeOOH结构。材料的微观形貌及其物相结构表征证实，所得复合材料为无定型结构的纳米颗粒，且负载的FeOOH表现为无特定晶型结构。电化学测试结果表明，所得材料CeO
2
@FeOOH具有碱性电解水阳极端催化活性，当驱动电流密度为10 m A/cm
2
时，其所需过电势为292 m V，相较于其构筑界面前的单体材料CeO
2
(335 mV)和FeOOH (340 mV)分别提升12.8%和14.1%。结果表明：通过构筑CeO
2
和FeOOH界面结构，能够有效提升复合材料的碱性电解水催化活性，且所得材料CeO
2
@FeOOH相较于商用催化剂具有低成本、长周期稳定性以及高催化活性的竞争优势。
Abstract
In order to develop a high-efficiency and low-energy-consumption catalyst for water to hydrogen electrolysis production
the interface engineering method was introduced to construct a nanocomposite material CeO
2
@FeOOH which containing the interface structure of CeO
2
and FeOOH.First
the CeO
2
nanostructure was prepared by a one-step hydrothermal method
and
which then serving as the base material.By using the FeSO
4
·7H
2
O as the iron source under the water bath treating
Fe
2+
ion was hydrolyzed and oxidized to form FeOOH structure on the surface of CeO
2
.The microscopic morphology of the material and the phase structure characterization confirmed that the obtained composite material was the amorphous structure of nano-particles
and the loaded FeOOH exhibits an amorphous crystal structure.The electrochemical test results show that the obtained material CeO
2
@FeOOH has the good performance of catalytic activity toward the anodic of alkaline electrolyzed water.When it driving the current density of 10 m A/cm~2
the required overpotential is 292 mV
which better than The results show that by constructing the CeO
2
and FeOOH interface structure
the catalytic activity of alkaline electrolysis water of the composite material can be effectively improved
and the obtained material CeO
2
@FeOOH owns the competitive advantages of low cost
long-term stability and high catalytic activity compared with that of commercial catalysts.
关键词
Keywords
references
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