Aqueous alkaline electrolytes for dynamic windows based on reversible metal electrodeposition with improved durability

Autor:	Judy Y. Li, Christopher J. Barile, Joseph F. Jeanetta, Shakirul M. Islam, Darren D. Miller
Rok vydání:	2020
Předmět:	Materials science Aqueous solution Oxide chemistry.chemical_element General Chemistry Electrolyte Durability Metal chemistry.chemical_compound Chemical engineering chemistry Electrochromism visual_art Materials Chemistry visual_art.visual_art_medium Indium Transparent conducting film
Zdroj:	Journal of Materials Chemistry C. 8:1826-1834
ISSN:	2050-7534 2050-7526
DOI:	10.1039/c9tc05546k
Popis:	Dynamic windows, which have electronically tunable transmission, are desirable for buildings and automobiles due to their aesthetics and ability to reduce lighting, heating, and cooling energy costs. Reversible metal electrodeposition has recently emerged as a promising alternative to dynamic windows based on electrochromic materials. In this manuscript, we develop alkaline electrolytes that facilitate the reversible electrodeposition of Bi and Cu. Through spectroelectrochemical measurements, we determined that a chelating ligand can be used to design optically reversible devices that exhibit sufficient Bi3+ solubility in alkaline media. Unlike previously studied acidic Bi–Cu electrolytes, these alkaline electrolytes do not degrade the tin-doped indium oxide transparent conductors typically used in dynamic windows. As a result, we demonstrate that practical two-electrode 25 cm2 dynamic windows with these alkaline electrolytes exhibit superior durability to those containing acidic electrolytes. These results are important for the advancement of robust reversible metal electrodeposition technologies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fd44f8673604133f705503a7a3a6aedf https://doi.org/10.1039/c9tc05546k Zobrazit plný text záznamu