Probing Structural Evolution and Charge Storage Mechanism of NiO 2 H  x   Electrode Materials using In Operando Resonance Raman Spectroscopy | Zendy

Chen Dongchang | Zendy; Xiong Xunhui | Zendy; Zhao Bote | Zendy; Mahmoud Mahmoud A. | Zendy; ElSayed Mostafa A. | Zendy; Liu Meilin | Zendy

Open Access

Probing Structural Evolution and Charge Storage Mechanism of NiO 2 H x Electrode Materials using In Operando Resonance Raman Spectroscopy

Author(s) -

Chen Dongchang,

Xiong Xunhui,

Zhao Bote,

Mahmoud Mahmoud A.,

ElSayed Mostafa A.,

Liu Meilin

Publication year - 2016

Publication title -

advanced science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.388

H-Index - 100

ISSN - 2198-3844

DOI - 10.1002/advs.201500433

Subject(s) - materials science , hydrogen storage , electrochemistry , supercapacitor , raman spectroscopy , nanotechnology , battery (electricity) , energy storage , electrode , heteroatom , electrolyte , chemical engineering , chemistry , metallurgy , physics , quantum mechanics , optics , ring (chemistry) , power (physics) , organic chemistry , alloy , engineering

In operando resonance Raman spectroscopy suggests quantitative correlation between phonon band properties and the amount of charge storage of high‐energy density NiO 2 H x battery/pseudocapacitive material. Comparing the spectroscopic evolution using different electrolytes reveals the contributions of breaking/formation of O–H bonds and insertion/extraction of cations to electrochemical charge storage of NiO 2 H x .

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