TY - JOUR
T1 - Facile synthesis of Mn3[Co(CN)6]2·
T2 - N H2O nanocrystals for high-performance electrochemical energy storage devices
AU - Zhao, Qunxing
AU - Zhao, Mingming
AU - Qiu, Jiaqing
AU - Pang, Huan
AU - Lai, Wen Yong
AU - Huang, Wei
N1 - Publisher Copyright:
© 2017 the Partner Organisations.
PY - 2017/3
Y1 - 2017/3
N2 - Recently, although great efforts have been committed to enhance the electrochemical performance of supercapacitors (SCs), these devices are still unable to meet our expectations on account of limited working voltage, insufficient cycle life, low mechanical flexibility, and high cost. In this work, we have successfully synthesized several Mn3[Co(CN)6]2·nH2O nanocrystals by a mild precipitation method at room temperature. These Mn3[Co(CN)6]2·nH2O nanocrystals, as a novel kind of positive electrode materials, are firstly applied in flexible solid-state electrochemical energy storage devices. The best one of the as-assembled devices based on the as-prepared Mn3[Co(CN)6]2·nH2O nanocrystals shows high electrochemical performance activity, which offers the highest volumetric energy density of 4.69 mW h cm-3 at 1.0 mA cm-2 and exhibits the largest power density of 177.1 mW cm-3 at 20.0 mA cm-2. Remarkably, the device displayed wonderful mechanical flexibility as the bending angle range from 0° to 180°. Moreover, the device demonstrated little capacitance change over 7000 cycles at 1.0 mA cm-2, and exhibited a great cycling stability with 96.1% capacitance retention.
AB - Recently, although great efforts have been committed to enhance the electrochemical performance of supercapacitors (SCs), these devices are still unable to meet our expectations on account of limited working voltage, insufficient cycle life, low mechanical flexibility, and high cost. In this work, we have successfully synthesized several Mn3[Co(CN)6]2·nH2O nanocrystals by a mild precipitation method at room temperature. These Mn3[Co(CN)6]2·nH2O nanocrystals, as a novel kind of positive electrode materials, are firstly applied in flexible solid-state electrochemical energy storage devices. The best one of the as-assembled devices based on the as-prepared Mn3[Co(CN)6]2·nH2O nanocrystals shows high electrochemical performance activity, which offers the highest volumetric energy density of 4.69 mW h cm-3 at 1.0 mA cm-2 and exhibits the largest power density of 177.1 mW cm-3 at 20.0 mA cm-2. Remarkably, the device displayed wonderful mechanical flexibility as the bending angle range from 0° to 180°. Moreover, the device demonstrated little capacitance change over 7000 cycles at 1.0 mA cm-2, and exhibited a great cycling stability with 96.1% capacitance retention.
UR - http://www.scopus.com/inward/record.url?scp=85015259655&partnerID=8YFLogxK
U2 - 10.1039/c6qi00595k
DO - 10.1039/c6qi00595k
M3 - 文章
AN - SCOPUS:85015259655
SN - 2052-1553
VL - 4
SP - 442
EP - 449
JO - Inorganic Chemistry Frontiers
JF - Inorganic Chemistry Frontiers
IS - 3
ER -