Kim, Seong-Hoon Dao, Van-Duong Larina, Liudmila L. Jung, Kwang-Deog Choi, Ho-Suk 2024-01-20T05:03:40Z 2024-01-20T05:03:40Z 2021-09-03 2016-01-01 1385-8947 https://pubs.kist.re.kr/handle/201004/124519 In this study, we developed a green and facile approach to efficiently and stably synthesize platinum nanoparticles (PtNPs) on the surface of reduced graphene oxide (rGO) based on oxidized fructose, using a liquid plasma reduction under atmospheric pressure near room temperature. The developed method excludes toxic reductants and noble gases from the synthesis process. PtNPs with radii ranging from 1 to 3.5 nm are stably and uniformly hybridized on the surface of rGO after the co-reduction of Pt precursor ions and graphene oxide to Pt atoms and rGO, respectively. Dye-sensitized solar cells that exploit the PtNPs/rGO nanohybrid as the counter electrode, which were prepared with two different PtNPs/rGO contents in isopropyl alcohol, exhibit power conversion efficiencies of 7.04% and 7.26%, respectively. These efficiencies are comparable with that of 7.24% for the device equipped with a state-of-the-art counter electrode. The obtained efficiencies are ascribed to the high electrochemical catalytic activity and high electrical conductivity of the developed PtNPs/rGO nanohybrid materials. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA COUNTER ELECTRODE MATERIAL LOW-COST PLATINUM NANOPARTICLES CHEMICAL-REDUCTION PLASMA SYNTHESIS GRAPHENE ENHANCEMENT NANOSHEETS ROBUST OXIDE Solution-processable rGO-Pt nanohybrids synthesized in an aqueous fructose solution for transparent and efficient dye-sensitized solar cells Article 10.1016/j.cej.2015.08.070 1 CHEMICAL ENGINEERING JOURNAL, v.283, pp.1285 - 1294 CHEMICAL ENGINEERING JOURNAL 283 1285 1294 scie scopus 000364247100133 2-s2.0-84946781012 Engineering, Environmental Engineering, Chemical Engineering Article COUNTER ELECTRODE MATERIAL LOW-COST PLATINUM NANOPARTICLES CHEMICAL-REDUCTION PLASMA SYNTHESIS GRAPHENE ENHANCEMENT NANOSHEETS ROBUST OXIDE Liquid plasma reduction Graphene oxide Fructose Nanohybrid materials Dye-sensitized solar cells