Relationship between Electric Double-Layer Structure of MXene Electrode and Its Surface Functional Groups
Relationship between Electric Double-Layer Structure of MXene Electrode and Its Surface Functional Groups
复制标题
MXene电极的电双层结构与其表面官能团的关系
DOI:
10.1021/acs.chemmater.1c03328
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发表时间:
2022
影响因子:
8.6
通讯作者:
Yamada Atsuo
中科院分区:
文献类型:
--
作者:
Shimada Tatau;Takenaka Norio;Ando Yasunobu;Otani Minoru;Okubo Masashi;Yamada Atsuo
MXenes are emerging electrode materials intended for electric double-layer capacitors because of their large specific capacitance of more than 300 F/g. Recent advances in synthesis methods have enabled a decrease in surface functional groups and chemical control of their design, but the influence of surface functional groups on capacitive properties is still unclear. Here, we applied density functional theory combined with effective screening medium and reference interaction site model calculations to systematically investigate the atomic-scale double-layer structure of Ti3C2T2MXene electrodes depending on their terminated halogen elements. The termination with halogen atoms having larger atomic numbers (I > Br > Cl > F) increased the electric double-layer capacitance. The increased capacitance originates from the smaller valence electron numbers of the terminating atoms with lower electronegativity that facilitate the electrostatic accumulation of electrons at the electrode surface. Such a solid trend provides a basis for consideration in designing MXene surfaces with larger capacitance.
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影响因子:
16.6
作者:
Cheng Zhan;M. Ceron;S. Hawks;M. Otani;B. Wood;T. Pham;M. Stadermann;P. Campbell
通讯作者:
Cheng Zhan;M. Ceron;S. Hawks;M. Otani;B. Wood;T. Pham;M. Stadermann;P. Campbell
影响因子:
56.9
作者:
Kamysbayev, Vladislav;Filatov, Alexander S.;Talapin, Dmitri, V
通讯作者:
Talapin, Dmitri, V
影响因子:
19
作者:
Ando, Yasunobu;Okubo, Masashi;Otani, Minoru
通讯作者:
Otani, Minoru
影响因子:
64.8
作者:
Xia, Yu;Mathis, Tyler S.;Yang, Shu
通讯作者:
Yang, Shu
DOI:
--
发表时间:
2006
期刊:
文化財保存修復学会第28回大会要旨集
影响因子:
--
作者:
今津節生;張 金萍;三輪嘉六
通讯作者:
三輪嘉六