A SnO2 shell for high environmental stability of Ag nanowires applied for thermal management

• DOI: 10.1039/d0ra10040d
• Publication Date: 2021-01-20T10:37:01Z
• Authors: Anna Baranowska-K...; Ewelina Mackiewicz; Katarzyna Ranosze...; Alicja Nejman; Susana Trasobares; Jarosław Grobelny; Małgorzata Cieślak; Grzegorz Celichowski
• Keywords: Thermal Stability

Since silver nanowires (AgNWs) show high infrared reflectance many studies present their applicability as thermal management products for various wearable textiles. However, use practical purposes is only partially evaluated, without focusing on improving low atmospheric and liquid stability. This report describes a new approach the topic proposes facile method of Ag nanowire passivation with SnO2 layer environmental stability retention reflectance. The one-step process AgNWs was carried out in presence sodium stannate an aqueous solution at 100 °C, resulted formation core/shell Ag/SnO2 nanowires. study presents morphological, chemical, structural properties Ag/SnO2NWs formed 14 nm thick shell, consisting 7 rutile-type crystals, covering metallic core. optical changed significantly after shell formation, longitudinal transverse modes surface plasmon resonance spectrum were red shifted result surrounding media dielectric constant changes. protected from decomposition air over 4 months, dissolution KCN concentrations up to 0.1 wt%. Moreover, shows microwave irradiation effect synthesis previously synthesised Ag/SnO2NWs. post-synthesis irradiation, well obtained by assistance, did not allow long-term be achieved. microwave-assisted also fast enough inhibit prismatic structures simple hydrolysis process, apart showing infra-red para-aramid fabric, are highly environmentally stable. presented preparation can protect AgNW's or facilitate designing durable smart materials conditions.