Tensile-strain-driven interstitial Ru doping structure on an FeCoP/FF electrode accelerates the reaction kinetics of water electrolysis

被引：0

作者：

Zhan, Lu ^{[1
,2
]}

Liu, Yanru ^{[1
,3
]}

Zhou, Guizhong ^{[2
]}

Liu, Kang ^{[1
,3
]}

Du, Yunmei ^{[1
,2
]}

Wang, Lei ^{[1
,3
]}

机构：

[1] Qingdao Univ Sci & Technol, Minist Educ, Key Lab Ecochem Engn, Int Sci & Technol Cooperat Base Ecochem Engn & Gre, Qingdao, Peoples R China

[2] Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Shandong Engn Res Ctr Marine Environm Corros & Saf, Qingdao, Peoples R China

[3] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Opt Elect Sensing & Analyt Chem Life Sci, Taishan Scholar Advantage & Characterist Disciplin, Qingdao, Peoples R China

来源：

GREEN CHEMISTRY | 2025年 / 27卷 / 09期

基金：

中国国家自然科学基金;

关键词：

EFFICIENT;

D O I：

10.1039/d4gc06286h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ru atoms with a large radius are often doped into a lattice as substituents due to reaction kinetics and thermodynamics limitations. Therefore, overcoming kinetic resistance to realize interstitial Ru doping in phosphides and establishing the internal relationship of its electrocatalytic performance are challenging. Considering that the tensile strain induced by a quenching-induced huge temperature difference can provide the possibility of interstitial doping, an interstitially Ru-doped FeCoP/FF electrode with 2.32% tensile strain was innovatively constructed by a strain-driven interstitial Ru doping strategy. As expected, the Ru-FeCoP/FF parallel to Ru-FeCoP/FF electrolyzer needs a cell voltage of only 1.64 V to deliver 1 A cm-2. Notably, the tensile strain and interstitially doped Ru synergistically promote the movement of electrons from Fe and Co sites to P and plummeting of the activation energy (Ea), thus accelerating the reaction kinetics of HER and OER. Overall, this work provides new ideas for designing an Ru interstitially doped electrode and optimizing the HER and OER kinetics.

引用

页码：2417 / 2426

页数：10