2026-10-13T04:53:37Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33993540 2026-09-25T06:06:26Z category_146 category_915 category_7 category_8 category_873 category_734 category_135 portal_63 item_type_2 month_year_09_2026

Cu-MOF/Iodine Synergistic Electrochromic System for Energy-Efficient Smart Windows Qingxiu Fan (25107960) Keying Feng (19851836) Hao Zhang (15339) Zhiyong Liu (160339) Zheng Chen (49483) Space Science Physical Sciences not elsewhere classified Medicine Microbiology Chemical Sciences not elsewhere classified Biological Sciences not elsewhere classified Computational Biology system achieves voltage smart window applications salt electrolyte system reversible redox activity modified electrode delivers limiting device durability interfacial charge transfer infrared regions via efficient smart windows cost strategy provides severe shuttle effect reversible iodine electrodeposition 2 +</ sup shuttle behavior iodine conversion unique pathway systems plagued species diffusion soluble intermediates showing promise retaining 89 preoxidation pathway optical contrast host interface electrochromic behavior coupled kinetics 6000 cycles 550 nm 1100 nm The electrochromic behavior of reversible iodine electrodeposition is governed by the coupled kinetics of interfacial charge transfer and species diffusion, yet soluble polyiodides induce a severe shuttle effect, limiting device durability. Herein, through an interface–electrolyte synergistic strategy, we construct a Cu-MOF (HKUST-1) host interface and a water-in-salt electrolyte system to regulate iodine redox electrochemistry. The unsaturated copper coordination sites of HKUST-1 chemically anchor polyiodides to suppress the shuttle behavior, and the reversible redox activity of Cu²⁺ sites provides additional electron transfer pathways for iodine conversion. Impressively, this system achieves voltage-selective spectral modulation covering visible and near-infrared regions via a preoxidation pathway. The modified electrode delivers an optical contrast of 87.37% at 1100 nm and 91.41% at 550 nm, retaining 89.06% of its optical contrast after 6000 cycles, showing promise for smart window applications. This multifunctional and low-cost strategy provides a unique pathway for systems plagued by soluble intermediates. 2026-09-25T00:00:00Z Dataset Media 10.1021/acs.jpclett.6c02272.s002 https://figshare.com/articles/media/Cu-MOF_Iodine_Synergistic_Electrochromic_System_for_Energy-Efficient_Smart_Windows/33993540 CC BY-NC 4.0