Electro-catalytic dechlorination performance of LaNi<sub>5</sub> hydrogen storage electrode modified by palladium

HE Zhiqiao; LIN Keji; CHEN Jianmeng; SONG Shuang

doi:10.3969/j.issn.0438-1157.2012.12.021

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Electro-catalytic dechlorination performance of LaNi₅ hydrogen storage electrode modified by palladium

更新时间：2025-12-10

- Electro-catalytic dechlorination performance of LaNi₅ hydrogen storage electrode modified by palladium
- CIESC Journal Issue 12, Pages: 3882-3888(2012)
- 作者机构：
  
  浙江工业大学生物与环境工程学院,浙江,杭州,310032
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.12.021
  CLC： 646X703
- Online First：17 July 2012，
  
  Published：17 July 2012
- 稿件说明：
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HE Zhiqiao, LIN Keji, CHEN Jianmeng, et al. Electro-catalytic dechlorination performance of LaNi₅ hydrogen storage electrode modified by palladium[J]. CIESC Journal, 2012, (12): 3882-3888. DOI: 10.3969/j.issn.0438-1157.2012.12.021.
DOI：

HE Zhiqiao, LIN Keji, CHEN Jianmeng, et al. Electro-catalytic dechlorination performance of LaNi₅ hydrogen storage electrode modified by palladium[J]. CIESC Journal, 2012, (12): 3882-3888. DOI: 10.3969/j.issn.0438-1157.2012.12.021. DOI：

摘要

为提高对氯苯酚(4-CP)脱氯的有效性

采用化学沉积法制备了镧镍合金镀钯电极(Pd/LaNi5)

对其进行了X射线衍射(XRD)、扫描电子显微镜(SEM)和线性扫描伏安(LSV)表征。电催化实验结果表明Pd/LaNi5电极显示了比LaNi5电极和Pd/Ni电极更高的4-CP脱氯活性

在初始浓度0.1 mmol·L-1、表观电流密度10 mA·cm-2、pH 4.0和钯载量1.8 mg·cm-2时

4-CP的脱氯率和电流效率分别达到77.3%和0.14%。基于物理化学表征

可以断定电化学脱氯活性的增强主要源于LaNi5更好的储氢能力。

Abstract

To improve dechlorination effectiveness of 4-chlorophenol

palladium-modified lanthanum-nickel electrode(Pd/LaNi5 electrode)was prepared by chemical deposition

and characterized by X-ray diffraction(XRD)

scanning electron microscopy(SEM)and linear sweep voltammetry(LSV).The measurement results of electrocatalytic activity show that the dechlorination efficiency is higher for Pd/LaNi5 electrode than for LaNi5 and Pd/Ni electrode.At conditions of 4-CP initial concentration 0.1 mmol稬-1

apparent current density 10 mA穋m-2

pH 4.0 and Pd loading 1.8 mg穋m-2

the dechlorination efficiency was 77.3%

and corresponding current efficiency 0.14%. Based on the physico-chemical characterization

the conclusion is that better hydrogen-storage property of LaNi5 is responsible for the enhancement of electrochemical dechlorination process.

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Electro-catalytic dechlorination performance of LaNi5 hydrogen storage electrode modified by palladium

DOI：10.3969/j.issn.0438-1157.2012.12.021

摘要

Abstract

关键词

Keywords

references

Electro-catalytic dechlorination performance of LaNi₅ hydrogen storage electrode modified by palladium