Intercalation of Ca into a Highly Defective Manganese Oxide at Room Temperature
Intercalation of Ca into a Highly Defective Manganese Oxide at Room Temperature
复制标题
室温下 Ca 嵌入高度缺陷的氧化锰中
DOI:
10.1021/acs.chemmater.1c03803
复制
发表时间:
2022
影响因子:
8.6
通讯作者:
Lapidus, Saul H.
中科院分区:
文献类型:
--
作者:
Kwon, Bob Jin;Yin, Liang;Bartel, Christopher J.;Kumar, Khagesh;Parajuli, Prakash;Gim, Jihyeon;Kim, Sanghyeon;Wu, Yimin A.;Klie, Robert F.;Lapidus, Saul H.
The utilization of oxide frameworks as intercalation cathodes for nonaqueous Ca-ion batteries potentially unlocks a new energy-storage system that delivers high energy density. However, the slow kinetics of Ca2+in oxide electrodes strongly handicaps their activity and reversibility at room temperature. Herein, nanocrystals of layered MnOxcontaining a high concentration of atomic defects and lattice water are shown to have remarkable electrochemical activity toward Ca2+, amounting to a capacity of ∼130 mAh/g at room temperature. Multimodal characterization revealed the notable degree of intercalation by probing the structural, compositional, and redox changes undertaken by the defective MnOxnanocrystals. The results suggest that the existence of atomic defects and lattice water played a role in improving Ca2+diffusivity in the oxide. These outcomes reaffirm the prospects for functional Ca-ion batteries using oxide cathodes under moderate conditions.
登录
查看更多内容
影响因子:
22
作者:
Kim, Sanghyeon;Yin, Liang;Vaughey, John T.
通讯作者:
Vaughey, John T.
影响因子:
8.6
作者:
Bob Jin Kwon;Chunjoong Kim;J. Jokisaari;H. Yoo;Sang‐Don Han;Soojeong Kim;Ka;Chen Liao;Yi;Jinghua Guo;B. Key;R. Klie;J. Cabana
通讯作者:
J. Cabana
影响因子:
5.4
作者:
Ru‐Shi Liu;L. Jang;Jin‐Ming Chen;Yi-Min Tsai;Y. D. Hwang;R. G. Liu
通讯作者:
Ru‐Shi Liu;L. Jang;Jin‐Ming Chen;Yi-Min Tsai;Y. D. Hwang;R. G. Liu
影响因子:
--
作者:
J. Xu;A. J. Kinser;B. Owens;W. Smyrl
通讯作者:
J. Xu;A. J. Kinser;B. Owens;W. Smyrl
影响因子:
3.9
作者:
R. Verrelli;A. Black;R. Dugas;D. Tchitchekova;A. Ponrouch;M. R. Palacín
通讯作者:
M. R. Palacín