2+MnO2電極;析氧反應(yīng)動力學(xué);Tafel曲線"/> 2+MnO2復(fù)合電極,利用慢速線性電位掃描伏安法測試Ti/IrO2+MnO2電極的準(zhǔn)穩(wěn)態(tài)極化曲線并深入地研究析氧反應(yīng)動力學(xué),得到了相關(guān)動力學(xué)參數(shù)、反應(yīng)歷程及速度控制步驟。通過分析經(jīng)歐姆電壓降修正的Tafel曲線,較好地解釋了Tafel直線區(qū)域的雙斜率現(xiàn)象,基于此提出析氧反應(yīng)動力學(xué)方程并進(jìn)行數(shù)學(xué)推導(dǎo),較好地符合實(shí)驗(yàn)結(jié)果。實(shí)驗(yàn)所得氫離子反應(yīng)級數(shù)約為零,低電位區(qū)與高電位區(qū)的表觀活化能分別為30.31kJ/mol和13.64kJ/mol,進(jìn)一步證明該數(shù)學(xué)模型的正確性。"/>

最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級檢索
Ti/IrO2+MnO2電極在酸性溶液中的析氧反應(yīng)動力學(xué)研究
作者:
作者單位:

蘭州交通大學(xué)

作者簡介:

通訊作者:

中圖分類號:

基金項(xiàng)目:

國家自然科學(xué)基金資助(51804150),甘肅省科技計劃資助(20JR2RA002),甘肅省黃河水環(huán)境重點(diǎn)實(shí)驗(yàn)室開放基金資助(21YRWEK002)


Kinetics of oxygen evolution reaction on Ti/IrO2+MnO2 electrodeform acid solution
Author:
Affiliation:

Lanzhou Jiaotong University

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    采用涂覆熱分解法制備Ti/IrO2+MnO2復(fù)合電極,利用慢速線性電位掃描伏安法測試Ti/IrO2+MnO2電極的準(zhǔn)穩(wěn)態(tài)極化曲線并深入地研究析氧反應(yīng)動力學(xué),得到了相關(guān)動力學(xué)參數(shù)、反應(yīng)歷程及速度控制步驟。通過分析經(jīng)歐姆電壓降修正的Tafel曲線,較好地解釋了Tafel直線區(qū)域的雙斜率現(xiàn)象,基于此提出析氧反應(yīng)動力學(xué)方程并進(jìn)行數(shù)學(xué)推導(dǎo),較好地符合實(shí)驗(yàn)結(jié)果。實(shí)驗(yàn)所得氫離子反應(yīng)級數(shù)約為零,低電位區(qū)與高電位區(qū)的表觀活化能分別為30.31kJ/mol和13.64kJ/mol,進(jìn)一步證明該數(shù)學(xué)模型的正確性。

    Abstract:

    Ti/IrO2+MnO2 composite electrodes were prepared by thermal decomposition. The kinetics of oxygen evolution reaction on Ti/IrO2+ MnO2 electrodes were studied deeply with quasi-stationary polarization curve recorded by slow linear potential sweep voltammetry. The related kinetics parameters, reaction process and rate determining steps were obtained. Tafel linear regions wih double slopes were explained well by analyzing the ohmic voltage drop corrected Tafel curves. Kinetics equations based on the proposed oxygen evolution reaction mechanism were deduced mathematically, which were in good agreement with the experimental results. The reaction order of hydrogen ion close to 0, the one of apparent activation energy of 30.31kJ/mol in the low potential region and the other of 13.64kJ/mol in the high potential region, further proved the correctness of above mathematical model.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

周鍵,賈昱,宋小三. Ti/IrO2+MnO2電極在酸性溶液中的析氧反應(yīng)動力學(xué)研究[J].稀有金屬材料與工程,2023,52(4):1287~1295.[Zhou Jian, Jia yu, Song xiaosan. Kinetics of oxygen evolution reaction on Ti/IrO2+MnO2 electrodeform acid solution[J]. Rare Metal Materials and Engineering,2023,52(4):1287~1295.]
DOI：10.12442/j. issn.1002-185X.20220199

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2022-03-13
  • 最后修改日期:2022-05-09
  • 錄用日期:2022-05-30
  • 在線發(fā)布日期: 2023-05-01
  • 出版日期: 2023-04-25