原位57Fe穆斯堡尔光谱技术及其在Ni-Fe基析氧反应电催化剂中的应用

Jafar Hussain Shah, 谢起贤, 匡智崇, 格日乐, 周雯慧, 刘朵绒, Alexandre I. Rykov, 李旭宁, 罗景山, 王军虎

In-Situ/Operando 57Fe Mössbauer Spectroscopic Technique and Its Applications in NiFe-based Electrocatalysts for Oxygen Evolution Reaction

Jafar Hussain Shah, Qi-Xian Xie, Zhi-Chong Kuang, Ri-Le Ge, Wen-Hui Zhou, Duo-Rong Liu, Alexandre I. Rykov, Xu-Ning Li, Jing-Shan Luo, Jun-Hu Wang

Table 2 Ex-situ 57Fe Mössbauer spectral parameters of NiFem-OxHy at room temperature

Sample Valence/spin state δ/Fe (mm·s-1) Δ (mm·s-1) Γexp (mm·s-1) A (%) NiFe0.11-OxHy Fe3+ high spin 0.32 0.44 0.28 100 NiFe0.2-OxHy Fe3+ high spin 0.32 0.58 0.42 100 NiFe0.25-OxHy Fe3+ high spin 0.34 0.35 0.36 100 NiFe0.29-OxHy Fe3+ high spin 0.32 0.43 0.33 100