X70管线钢气体充注和电化学充注吸氢的等效性

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-04-03 DOI:10.1016/j.ijhydene.2025.03.398

Tonye Alaso Jack , Fateh Fazeli , Jerzy Szpunar

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引用次数: 0

摘要

本研究采用气体和电化学充注的方法检测了X70管线钢的氢气吸收率。在0.1 M NaOH中通过电化学渗透测定了等效氢逸度，并通过热脱附分析验证了等效氢逸度。结果表明，基于表面氢活性，两种充电方式均可获得等效的氢含量，且两者之间的关系具有材料特异性。在- 0.7 V的过电位下，所研究的X70钢的氢气浓度与10.34 MPa的气体充注相当，为类似的管道钢提供了实用的基准。此外，在较低的绝对过电位和充电电流密度下，复合毒物（As2O3）的加入可以获得较高的氢逸度和氢吸收率。

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Equivalence of hydrogen uptake in X70 pipeline steel via gaseous and electrochemical charging

This study examines hydrogen uptake in X70 pipeline steel using gaseous and electrochemical charging. Equivalent hydrogen fugacity was determined via electrochemical permeation in 0.1 M NaOH and validated by thermal desorption analysis. The results showed that equivalent hydrogen content can be achieved by both charging methods based on surface hydrogen activity, and the relationship obtained was observed to be material-specific. An overpotential of −0.7 V yielded a comparable hydrogen concentration to 10.34 MPa gaseous charging in the investigated X70 steel, offering a practical benchmark for similar pipeline steels. Also, the addition of recombination poison (As₂O₃) enabled higher hydrogen fugacity and hydrogen uptake to be obtained at lower absolute overpotentials and charging current densities.

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.