Fabrication of Silver-Impregnated Silica Aerogel Composite for Energy Applications

• Autorzy: Kapadnis Pratik S. , Kim Kyungsun , Park Hyung-Ho , Hwang Haejin

Identyfikatory

DOI

10.24425/amm.2024.147789

• Języki publikacji: EN

Abstrakty

EN

In this study, Ag-impregnated silica aerogel composites were fabricated via wet impregnation. In this approach, silver salt was reduced with ethylene glycol in the presence of polyvinylpyrrolidone (PVP) at reaction temperature 80°C. PVP was used as a capping agent to protect the Ag nanoparticles (NPs) from agglomeration. Wet impregnation was used to synthesize the Ag/SiO₂ composite by combining the reduction of AgNO₃ with a silica aerogel slurry. Experimental results showed that the AgNO₃ concentration and PVP: AgNO₃ ratio had an active influence on the growth of Ag NPs on silica surfaces. The X-ray diffraction (XRD) patterns of the composite material showed no imprints of impurities or parasitic materials except for Ag and SiO₂. Scanning electron microscopy (SEM) images revealed that the Ag NPs were well impregnated into the porous silica aerogel structure. It was found that SiO₂ aerogel surfaces were homogeneously surrounded by the Ag NPs.

Słowa kluczowe

EN

silver nanoparticle; silica aerogel; polyvinylpyrrolidone; impregnation; composite material

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 1
• Strony: 77--80
• Opis fizyczny: Bibliogr. 9 poz., fot., rys.

Twórcy

autor

Kapadnis Pratik S.

• Inha University, Department of Materials Science and Engineering, Incheon 22212, Republic of Korea

• https://orcid.org/0009-0003-8384-3942

autor

Kim Kyungsun

• Inha University, Department of Materials Science and Engineering, Incheon 22212, Republic of Korea

autor

Park Hyung-Ho

• Yonsei University, Department of Materials Science and Engineering, Seoul 03722, Republic of Korea

autor

Hwang Haejin

• Inha University, Department of Materials Science and Engineering, Incheon 22212, Republic of Korea

• https://orcid.org/0000-0002-1174-9485

Bibliografia

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Uwagi

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A5A1019131). This work was also supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022M3H4A1A04085322).