Highly ordered nanoarrays catalysts embedded in carbon nanotubes as highly efficient and robust air electrode for flexible solid-state rechargeable zinc-air batteries

Alagan Muthurasu; Su-Hyeong Chae; Tae Hoon Ko; Prakash Chandra Lohani; Hak Yong Kim

doi:10.1016/j.jcis.2022.02.097

Highly ordered nanoarrays catalysts embedded in carbon nanotubes as highly efficient and robust air electrode for flexible solid-state rechargeable zinc-air batteries

J Colloid Interface Sci. 2022 Jun 15:616:679-690. doi: 10.1016/j.jcis.2022.02.097. Epub 2022 Feb 22.

Authors

Alagan Muthurasu¹, Su-Hyeong Chae¹, Tae Hoon Ko¹, Prakash Chandra Lohani¹, Hak Yong Kim²

Affiliations

¹ Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea.
² Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Department of Organic Materials and Fiber Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea. Electronic address: khy@jbnu.ac.kr.

PMID: 35245794
DOI: 10.1016/j.jcis.2022.02.097

Abstract

The development of multicomponent materials is the most efficient and successful way for creating advanced multifunctional catalysts. Herein, the bimetal FeCo nanoarrays enclosed N-CNTs have a high surface on carbon cloth support, which promotes efficient electron transport and prevents nanoparticle aggregation. Taking advantage of the high-level use of active material and fast charge transfer, the developed electrocatalyst exhibits excellent multifunctional electrocatalyst such as oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). The N-CNTs@MOF FeCo nanoarrays @CC exhibit higher activity than reference catalysts including MOF FeCo nanoarrays@CC, FeCo nanoarrays@CC, and CC. Interestingly, the synthesized multifunctional catalyst, which serves as the air electrode in zinc-air batteries with liquid electrolytes as well as solid-state gel electrolytes possesses outstanding charging-discharge performance and long service life. This study provides enormous potential for the real implementation of portable, even wearable, and efficient rechargeable batteries in the future.

Keywords: And zinc-air batteries; Electrocatalyst; Metal-organic framework; Multifunctional; Nanoarrays.