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

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL ACS Energy Letters Pub Date : 2024-05-29 DOI:10.1021/acsenergylett.4c00492

Xueying Fan, Shen Wang, Mengyao Pan, Huan Pang* and Hongbo Xu*,

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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.

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基于联苯二甲酸的 Ni-IRMOF-74 薄膜用于快速切换和高稳定性电致变色

金属有机框架（MOFs）是一种前景广阔的电致变色材料，因其反应速度快、可转换多种颜色而闻名。然而，典型的 MOF 薄膜由于孔隙大小不合适、基底相互作用弱以及键的可逆性有限等原因，存在响应速度慢、稳定性差等问题。本研究通过用 4-巯基苯甲酸修饰掺杂 F 的 SnO2，并使用 3,3′-二羟基-4,4′-联苯二甲酸制造 Ni-IRMOF-74@MBA 薄膜，解决了这些难题。优化后的薄膜响应速度快（1.9 秒/2.0 秒）、效率高（331.0 cm2 C-1）、稳定性好（4500 次循环后保持率为 95.7%），在 0.8 V 时由透明变为绿色，在 1.6 V 时由于 Li+ 与配体的相互作用变为深褐色。由此产生的电致变色装置显示出更高的响应速度（2.3 秒/7.9 秒）和稳定性（1200 次循环后保持率为 85%）。这项研究在开发电致变色应用的 MOFs 方面取得了重大进展。

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来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.