Novel Pd-Fe2O3-Ni Electrocatalyst with Low Pd Content for Electrochemical Reduction of 4-Chlorophenol

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL Catalysis Letters Pub Date : 2024-11-16 DOI:10.1007/s10562-024-04850-4

Hao-Bo Gao, Tian-Zhen Zhu, Chen-Xin Xie, Jun Yang, Rui-Jia Zhang, Shao-Xun Han, Chun-Yan Ren, Li-Shan Zhou, Hou-Kai Teng, En-Shan Han, Guang-Lei Qian

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Abstract

Chlorophenol wastewater has a serious impact on the environment, and it is not easily degraded by traditional methods. The novel electrochemical hydrogen evolution reduction degradation has received widespread attention, among which the electrocatalytic performance of the electrode is particularly critical. In this study, Pd-Fe₂O₃-coated nickel foam electrode (Pd-Fe₂O₃-Ni) was prepared by annealing on Fe–Ni and introducing Pd into Fe₂O₃. Its degradation performance is better than that of the original nickel foam (Ni) and Fe₂O₃-Ni electrodes. The removal of 4-chlorophenol by Pd-Fe₂O₃-Ni was 98.2%, which was 1.4–1.52, 10–12 and 10.3–11.4 times higher than that of the unannealed Pd-Fe₂O₃-Ni, Ni, and Fe₂O₃-Ni, respectively. Meanwhile, the Pd-Fe₂O₃-Ni electrode had good stability, and the 4-chlorophenol removal rate was maintained at 92% after five repetitions, which proved the applicability of the Pd-Fe₂O₃-Ni electrode. Therefore, the prepared Pd-Fe₂O₃-Ni is a high-performance electrode for electrochemical reduction and degradation of wastewater.

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用于 4-氯苯酚电化学还原的新型低钯含量 Pd-Fe2O3-Ni 电催化剂

氯苯酚废水对环境造成严重影响，传统方法不易降解。新型电化学氢进化还原降解法受到广泛关注，其中电极的电催化性能尤为关键。本研究通过在 Fe-Ni 上退火并在 Fe2O3 中引入 Pd，制备了 Pd-Fe2O3 涂层泡沫镍电极（Pd-Fe2O3-Ni）。其降解性能优于原始泡沫镍（Ni）和 Fe2O3-Ni 电极。Pd-Fe2O3-Ni 对 4-氯苯酚的去除率为 98.2%，分别是未退火 Pd-Fe2O3-Ni、Ni 和 Fe2O3-Ni 的 1.4-1.52 倍、10-12 倍和 10.3-11.4 倍。同时，Pd-Fe2O3-Ni 电极具有良好的稳定性，经过五次重复后，4-氯苯酚去除率保持在 92%，这证明了 Pd-Fe2O3-Ni 电极的适用性。因此，制备的 Pd-Fe2O3-Ni 是一种用于电化学还原和降解废水的高性能电极。

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.