Y. Tong等人发现钙钛矿La2NiMnO6 纳米颗粒中Ni3+–O–Mn3+ 之间的振动超交换作用Vibronic Superexchange不仅调节优化了Ni和Mn的eg电子填充态,还使MnO6和NiO6八面体 之间产生了Jahn-Teller效应,其M-O键被拉长,增加了表面Ni/Mn(氢)氧化物活性位点,使得La2NiMnO6 纳米颗粒表现出远优于体相La2NiMnO6的OER催化性能。
Yun Tong, Junchi Wu, Pengzuo Chen, Changzheng Wu*, Yi Xie*, et al. Vibronic Superexchange in Double Perovskite Electrocatalyst for Efficient Electrocatalytic Oxygen Evolution
J. Am. Chem. Soc., DOI: 10.1021/jacs.8b06108
https://pubs.acs.org/doi/10.1021/jacs.8b06108