TY - JOUR
T1 - One-step synthesis of graphene-Pt nanocomposites by gamma-ray irradiation
AU - Tokai, Akihiro
AU - Okitsu, Kenji
AU - Hori, Fuminobu
AU - Mizukoshi, Yoshiteru
AU - Iwase, Akihiro
PY - 2016/6/1
Y1 - 2016/6/1
N2 - We developed a one-step gamma-ray irradiation method to synthesize nanocomposites composed of graphene and Pt nanoparticles from aqueous solution containing graphene and Pt(IV) complex ions in the presence of 2-propanol (IPA) or sodium dodecyl sulfate (SDS). It was confirmed that gamma-ray irradiation provided carbonyl groups on graphene and Pt nanoparticles formed from the radiolytic reduction of Pt(IV) complex ions were deposited onto the carbonyl modified graphene. In the presence of IPA, small Pt nanoparticles were deposited on graphene, but large Pt nanoparticles were deposited in the presence of SDS: the size of Pt nanoparticles formed was larger in the presence of SDS than IPA. Based on the results, formation and deposition mechanisms of Pt nanoparticles were proposed.
AB - We developed a one-step gamma-ray irradiation method to synthesize nanocomposites composed of graphene and Pt nanoparticles from aqueous solution containing graphene and Pt(IV) complex ions in the presence of 2-propanol (IPA) or sodium dodecyl sulfate (SDS). It was confirmed that gamma-ray irradiation provided carbonyl groups on graphene and Pt nanoparticles formed from the radiolytic reduction of Pt(IV) complex ions were deposited onto the carbonyl modified graphene. In the presence of IPA, small Pt nanoparticles were deposited on graphene, but large Pt nanoparticles were deposited in the presence of SDS: the size of Pt nanoparticles formed was larger in the presence of SDS than IPA. Based on the results, formation and deposition mechanisms of Pt nanoparticles were proposed.
KW - Gamma-ray
KW - Graphene
KW - Nanocomposite
KW - Pt nanoparticles
KW - Surface modification
UR - http://www.scopus.com/inward/record.url?scp=84959372645&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84959372645&partnerID=8YFLogxK
U2 - 10.1016/j.radphyschem.2016.02.019
DO - 10.1016/j.radphyschem.2016.02.019
M3 - Article
AN - SCOPUS:84959372645
VL - 123
SP - 68
EP - 72
JO - Radiation Physics and Chemistry
JF - Radiation Physics and Chemistry
SN - 0969-806X
ER -