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Biphenyl Dicarboxylic-Based Ni-IRMOF-74 Film for Fast-Switching and High-Stability Electrochromism

  • Xueying Fan
  • , Shen Wang
  • , Mengyao Pan
  • , Huan Pang*
  • , Hongbo Xu*
  • *Corresponding author for this work
  • School of Chemistry and Chemical Engineering, Harbin Institute of Technology
  • Quzhou University
  • University of Electronic Science and Technology of China
  • Yangzhou University

Research output: Contribution to journalArticlepeer-review

Abstract

Metal-organic frameworks (MOFs) are promising electrochromic materials known for their rapid response speed and ability to transition through multiple colors. However, typical MOF films suffer from slow response times and poor stability due to inappropriate pore sizes, weak substrate interaction, and limited bond reversibility. This study addresses these challenges by modifying F-doped SnO2 with 4-mercaptobenzoic acid and fabricating Ni-IRMOF-74@MBA films using 3,3′-dihydroxy-4,4′-biphenyldicarboxylic acid. The optimized film exhibits a rapid response (1.9 s/2.0 s), high efficiency (331.0 cm2 C-1), and favorable stability (95.7% retention after 4500 cycles), transitioning from transparent to green at 0.8 V and deep-brown at 1.6 V due to Li+ interaction with the ligand. The resulting electrochromic device shows improved response (2.3 s/7.9 s) and stability (85% retention after 1200 cycles). This work presents a significant advancement in developing MOFs for electrochromic applications.

Original languageEnglish
Pages (from-to)2840-2847
Number of pages8
JournalACS Energy Letters
Volume9
Issue number6
DOIs
StatePublished - 14 Jun 2024
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

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