Balancing Activity and Stability in Spinel Cobalt Oxides through Geometrical Sites Occupation towards Efficient Electrocatalytic Oxygen Evolution,Angewandte Chemie International Edition

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Balancing Activity and Stability in Spinel Cobalt Oxides through Geometrical Sites Occupation towards Efficient Electrocatalytic Oxygen Evolution
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2022-11-11 , DOI: 10.1002/anie.202214600
Li An ₁ , Hong Zhang ₂ , Jiamin Zhu ₁ , Shibo Xi ₃ , Bolong Huang ₄ , Mingzi Sun ₄ , Yong Peng ₂ , Pinxian Xi ₁ , Chun-Hua Yan _{1,

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Affiliation

Through tuning geometrical sites occupation, (Ni,Mn)-(Co)_tet(Co₂)_octO₄ NSs with Mn_oct, Ni_oct, Ni_tet shows excellent OER activity. The Ni/Mn substitution modulates the normal surface states of CoCo₂O₄ from oxygen-excess to oxygen-deficient and thus leading to the decoupled proton-electron transfer to reconstruct a more stable surface. The optimal balance between the electroactivity and stability ensures a remarkable OER performance.

中文翻译：

通过几何位点占据平衡尖晶石钴氧化物的活性和稳定性以实现高效电催化析氧

通过调整几何位点占用，(Ni,Mn)-(Co) _tet (Co ₂ ) _oct O ₄ NSs 与 Mn _oct、 Ni _oct、Ni _tet显示出优异的 OER 活性。_{Ni/Mn 取代将 CoCo 2} O ₄的正常表面状态从氧过量调节到氧缺乏，从而导致解耦的质子-电子转移以重建更稳定的表面。电活性和稳定性之间的最佳平衡确保了卓越的 OER 性能。

更新日期：2022-11-11

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