TY - JOUR
T1 - A Tetrakis(terpyridine) Ligand–Based Cobalt(II) Complex Nanosheet as a Stable Dual-Ion Battery Cathode Material
AU - Liu, Yurong
AU - Deng, Wenwen
AU - Meng, Zhengong
AU - WONG, Wai Yeung
N1 - Funding Information:
W.-Y.W. thanks the Science, Technology, and Innovation Committee of Shenzhen Municipality (JCYJ20170303160036674 and JCYJ20180507183413211), the National Natural Science Foundation of China (no. 51573151), the Hong Kong Research Grants Council (PolyU 153051/17P), the Areas of Excellence Scheme of HKSAR (AoE/P-03/08), the Hong Kong Polytechnic University (1-ZE1C), and the Endowed Professorship in Energy from Ms Clarea Au (847S) for the financial support. Z.G.M. thanks the National Natural Science Foundation of China (no. 21701112) for the financial support.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Inspired by the flexibility of the bottom-up approach in terms of selecting molecular components and thus tailoring functionalities, a terpyridine derivative (1,2,4,5-tetrakis(4-(2,2′:6′,2″-terpyridyl)phenyl)benzene) (Tetra-tpy) is synthesized and coordinated with Co(II) ion to self-assemble into a nanosheet Co-sheet by a facile interface-assisted synthesis. The bis(terpyridine)-Co(II) complex nanosheet formed not only shows good stability, but also features the layered structure and rich electrochemical activity inherited from the embedded Co(terpyridine)2 motif. Thus, Co-sheet can serve as a cathode material for a dual-ion battery prototype, which exhibits a high utilization of redox-active sites, good cycling stability, and rate capability, thus expanding the potential application of this kind of easily prepared metal-complex nanosheets in the field of energy storage.
AB - Inspired by the flexibility of the bottom-up approach in terms of selecting molecular components and thus tailoring functionalities, a terpyridine derivative (1,2,4,5-tetrakis(4-(2,2′:6′,2″-terpyridyl)phenyl)benzene) (Tetra-tpy) is synthesized and coordinated with Co(II) ion to self-assemble into a nanosheet Co-sheet by a facile interface-assisted synthesis. The bis(terpyridine)-Co(II) complex nanosheet formed not only shows good stability, but also features the layered structure and rich electrochemical activity inherited from the embedded Co(terpyridine)2 motif. Thus, Co-sheet can serve as a cathode material for a dual-ion battery prototype, which exhibits a high utilization of redox-active sites, good cycling stability, and rate capability, thus expanding the potential application of this kind of easily prepared metal-complex nanosheets in the field of energy storage.
KW - cathode materials
KW - dual-ion batteries
KW - layered structures
KW - metal-organic nanosheets
KW - terpyridine
UR - http://www.scopus.com/inward/record.url?scp=85081721918&partnerID=8YFLogxK
U2 - 10.1002/smll.201905204
DO - 10.1002/smll.201905204
M3 - Journal article
C2 - 32162776
AN - SCOPUS:85081721918
SN - 1613-6810
VL - 16
JO - Small
JF - Small
IS - 17
M1 - 1905204
ER -