Isolation and Electrochemical Property of Ho2O@C90 Isomers | Zendy

Wei Dong | Zendy; Yanling Yu | Zendy; Bo Dong | Zendy; Yongfu Lian | Zendy

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Isolation and Electrochemical Property of Ho₂O@C₉₀ Isomers

Author(s) -

Wei Dong,

Yanling Yu,

Bo Dong,

Yongfu Lian

Publication year - 2022

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1945-7111/ac4f74

Subject(s) - electrochemistry , chemistry , spectral line , carbon fibers , oxide , homogeneous space , glassy carbon , redox , analytical chemistry (journal) , crystallography , materials science , inorganic chemistry , electrode , cyclic voltammetry , organic chemistry , physics , geometry , astronomy , composite number , composite material , mathematics

Four oxide clusterfullerenes Ho 2 O@C 90 (I–IV) were prepared by a modified arc discharge method and isolated by a multistage high performance liquid chromatography procedure. Based on their vis-NIR spectra, the carbon cage symmetries in Ho 2 O@C 90 (I, III, IV) are confirmed to be C 2 (43)-C 90 , C 2 (40)-C 90 and C 2 (41)-C 90 , respectively. Electrochemical studies display that the first and second reduction potentials of Ho 2 O@C 90 isomers are close to those of Er 2 C 2 @C 90 ones, but much lower than those of Sm@C 90 ones. Moreover, it is found that the electrochemical band gaps of Ho 2 O@C 90 isomers are also very close to those of Er 2 C 2 @C 90 isomers. A detailed investigation on the redox potentials of C 90 based EMFs reveals that endohedral clusters/atoms have much greater effect than carbon cage symmetries on the electrochemical properties of EMFs.

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