Van-Duong Dao Nguyen Thi Quynh Hoa Larina, Liudmila L. Lee, Joong-Kee Choi, Ho-Suk 2024-01-20T11:01:56Z 2024-01-20T11:01:56Z 2021-09-05 2013-12 2040-3364 https://pubs.kist.re.kr/handle/201004/127375 Dry plasma reduction (DPR) is an excellent approach for easily, continuously, uniformly and stably hybridizing platinum nanoparticles (Pt-NPs) on a graphene-coated layer under atmospheric pressure without any toxic chemicals and at a low temperature. The Pt-NPs with a size of 0.5-4 nm and mostly 2 nm were stably and uniformly hybridized on the surface of reduced graphene oxide (RGO) after co-reduction of Pt precursor ions and GO to Pt atoms and RGO, respectively. XPS analysis also revealed a repair of structural damage on the basal plane of the graphene as well as chemical bonding between Pt-NPs and RGO after DPR. Thus, the Pt-NPs/RGO nanohybrids applied to the counter electrode of dye-sensitized solar cells (DSCs) exhibited robust stability as well as ultrahigh electrochemical catalytic activity and conductivity using less than 1% of the Pt exploited for the Pt-sputtered counter electrodes. Thus, the Pt-NPs/RGO nanohybrid fabricated by DPR could be an excellent material for a robust and low-cost counter electrode for DSCs. English ROYAL SOC CHEMISTRY NANOPARTICLES EFFICIENCY OXIDE TRANSPARENT RESISTANCE REDUCTION OXIDATION Graphene-platinum nanohybrid as a robust and low-cost counter electrode for dye-sensitized solar cells Article 10.1039/c3nr03219a 1 NANOSCALE, v.5, no.24, pp.12237 - 12244 NANOSCALE 5 24 12237 12244 scie scopus 000327507900030 2-s2.0-84888309747 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article NANOPARTICLES EFFICIENCY OXIDE TRANSPARENT RESISTANCE REDUCTION OXIDATION Graphene nanohybrid lowcost counter electrode