https://scholars.lib.ntu.edu.tw/handle/123456789/641822
Title: | Characteristics of low-pressure-plasma-processed NiRu-MOFs/nickel foam for Hydrogen evolution reaction | Authors: | Yu, Shuo En Wang, Ying Chyi Tseng, Chia Yun Cheng, I-Chun JIAN-ZHANG CHEN |
Keywords: | electrocatalyst | electrolysis | hydrogen evolution reaction (HER) | NiRu-metal organic frameworks (NiRu-MOFs) | plasma | Issue Date: | 1-Apr-2024 | Journal Volume: | 99 | Journal Issue: | 4 | Source: | Physica Scripta | Abstract: | NiRu bimetallic metal-organic frameworks (NiRu-MOFs) are grown by a simple hydrothermal method on nickel foam (NF) as an the electrocatalyst for the hydrogen evolution reaction. Low-pressure plasmas of pure Ar, 95%Ar + 5%H2, and 95% Ar + 5%O2 are used for the post-treatment of the NiRu-MOFs. NiRu-MOFs-AO with post-plasma treatment with 95%Ar + 5%O2 show the lowest overpotential of 123.3 mV at a current density of 10 mA cm−2 and a Tafel slope of 72.0 mV dec−1 in 1 M KOH electrolyte. Electrochemical impedance spectroscopy results indicate that post-plasma treatment can further reduce the charge transfer resistance. Moreover, the electric double-layer capacitance (Cdl) is calculated based on the cyclic voltammetry results, and the electrocatalyst subjected to 95%Ar + 5%O2 post-plasma treatment shows a 2Cdl value of 3.69 mF/cm2, suggesting a larger electrochemically active surface area after oxygen-containing-plasma treatment. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/641822 | ISSN: | 00318949 | DOI: | 10.1088/1402-4896/ad314a |
Appears in Collections: | 應用力學研究所 |
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