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Operando X-ray absorption spectroscopy of hyperfine β-FeOOH nanorods modified with amorphous Ni(OH)2 under electrocatalytic water oxidation conditions.
Chemical Communications ( IF 4.3 ) Pub Date : 2020-04-07 , DOI: 10.1039/d0cc00692k
Takeshi Morikawa 1 , Sheraz Gul , Yusaku F Nishimura , Tomiko M Suzuki , Junko Yano
Affiliation  

Operando X-ray absorption spectroscopy was employed to study an active electrocatalyst, hyperfine β-FeOOH nanorods (∅ 3 × 15 nm) surface-modified with amorphous Ni hydroxide. The nearest neighbor structure and valence of Fe3+ ions did not change under water oxidation conditions, while changes in the nearest neighbor ordering of Ni2+ ions and a reversible transition to Ni3+ were observed in accordance with the electrical bias for the reaction.

中文翻译:

在电催化水氧化条件下,用无定形Ni(OH)2修饰的超细β-FeOOH纳米棒的Operando X射线吸收光谱。

使用Operando X射线吸收光谱法研究了用无定形氢氧化镍表面改性的活性电催化剂,超细β-FeOOH纳米棒(∅3×15 nm)。在水氧化条件下,Fe3 +离子的最近邻结构和化合价没有变化,而根据反应的电偏压,观察到了Ni2 +离子的最近邻有序变化和向Ni3 +的可逆转变。
更新日期:2020-04-01
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