Dispersed Nickel Phthalocyanine Molecules on Carbon Nanotubes as Cathode Catalysts for Li-CO2 Batteries

Zheng，Hongzhi1,2; Li，Huan1; Zhang，Zisheng1,3; Wang，Xiaojun2; Jiang，Zhan1; Tang，Yirong1; Zhang，Jibo2; Emley，Benjamin2; Zhang，Ye2; Zhou，Hua4; Yao，Yan2; Liang，Yongye1

2023

10.1002/smll.202302768

Small   Impact Factor & Quartile

1613-6810

1613-6829

The Li-CO battery has great potential for both CO utilization and energy storage, but its practical application is limited by low energy efficiency and short cycle life. Efficient cathode catalysts are needed to address this issue. Herein, this work reports on molecularly dispersed electrocatalysts (MDEs) of nickel phthalocyanine (NiPc) anchored on carbon nanotubes (CNTs) as the cathode catalyst for Li-CO batteries. The dispersed NiPc molecules efficiently catalyze CO reduction, while the conductive and porous CNTs networks facilitate CO evolution reaction, leading to enhanced discharging and charging performance compared to the NiPc and CNTs mixture. Octa-cyano substitution on NiPc (NiPc-CN) further enhances the interaction between the molecule and CNTs, resulting in better cycling stability. The Li-CO battery with the NiPc-CN MDE cathode shows a high discharge voltage of 2.72 V and a small discharging–charging potential gap of 1.4 V, and can work stably for over 120 cycles. The reversibility of the cathode is confirmed by experimental characterizations. This work lays a foundation for the development of molecular catalysts for Li-CO battery cathodes.

cathode catalysts cyano modification Li-CO2 batteries nickel phthalocyanine

SCI

English

First ; Corresponding

Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices[2019B121205001] ; Shenzhen fundamental research funding["JCYJ20190809142415351","JCYJ20220818100618039"] ; National Natural Science Foundation of China["22075125","52202251"] ; null[DE-AC02-06CH11357]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001018571000001

WILEY-V C H VERLAG GMBH

2-s2.0-85163615679

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Department of Electrical and Computer Engineering and Texas Center for Superconductivity,University of Houston,Houston,77204,United States
3.Department of Chemistry and Biochemistry,University of California,Los Angeles,Los Angeles,90095,United States
4.X-Ray Science Division,Advanced Photon Source,Argonne National Laboratory,Lemont,60439,United States

Zheng，Hongzhi,Li，Huan,Zhang，Zisheng,et al. Dispersed Nickel Phthalocyanine Molecules on Carbon Nanotubes as Cathode Catalysts for Li-CO2 Batteries[J]. Small,2023,19(43).

Zheng，Hongzhi.,Li，Huan.,Zhang，Zisheng.,Wang，Xiaojun.,Jiang，Zhan.,...&Liang，Yongye.(2023).Dispersed Nickel Phthalocyanine Molecules on Carbon Nanotubes as Cathode Catalysts for Li-CO2 Batteries.Small,19(43).

Zheng，Hongzhi,et al."Dispersed Nickel Phthalocyanine Molecules on Carbon Nanotubes as Cathode Catalysts for Li-CO2 Batteries".Small 19.43(2023).