2026-10-14T08:56:02Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33974239 2026-09-23T15:43:14Z category_1 category_146 category_915 category_7 category_12 category_21 category_873 category_39 category_45 category_69 portal_63 item_type_2 month_year_09_2026

Low-Voltage Electrophoretic Deposition in Water with Metal–Organic Framework Nanoparticles Faiqa Khaliq (14769430) Raj Shekhar (18879817) Clare Smith (546745) Carl K. Brozek (1364121) Biophysics Space Science Physical Sciences not elsewhere classified Medicine Cell Biology Biotechnology Chemical Sciences not elsewhere classified Ecology Sociology Inorganic Chemistry limit substrate compatibility create safety hazards 10 μm deposit governs electrophoretic mobility smaller particle sizes major industrial method voltage electrophoretic deposition intercalation thin films thin films electrophoretic mobilities rapid method deposition occurs uniform thin uniform films wide range time monitoring solvent properties results provide programmable capacitance processed fabrication particle size nanometer resolution insertion kinetics higher ζ film thickness film assembly enabling real enables high conductive substrates aqueous media 30 min 1 v Electrophoretic deposition (EPD) constitutes a major industrial method for solution-processed fabrication of thin films and coatings. Conventional protocols require high applied voltages (50–1000 V) that induce parasitic electrochemical reactions, limit substrate compatibility, and create safety hazards. Here, we demonstrate that intrinsic surface charge density of size-controlled metal–organic framework (MOF) nanoparticles, together with particle size and solvent properties, governs electrophoretic mobility and enables high-quality EPD in aqueous media at 1 V, well below the threshold for water electrolysis. Compact, uniform films of MOF nanoparticles with thicknesses >10 μm deposit in 30 min, due to higher ζ-potentials and electrophoretic mobilities that improve with smaller particle sizes, whereas nonporous colloids require hours. Deposition occurs on a wide range of conductive substrates, enabling real-time monitoring of film thickness with quartz crystal microbalance devices and, as a result, the formation of redox-intercalation thin films with programmable capacitance and ion-insertion kinetics. These results provide an energy-efficient, safer, and rapid method for uniform thin-film assembly with thicknesses controlled to nanometer resolution. 2026-09-23T00:00:00Z Dataset Media 10.1021/jacs.6c13197.s002 https://figshare.com/articles/media/Low-Voltage_Electrophoretic_Deposition_in_Water_with_Metal_Organic_Framework_Nanoparticles/33974239 CC BY-NC 4.0