Pt₃Sn nanoparticles enriched with SnO₂/Pt₃Sn interfaces for highly efficient alcohol electrooxidation

Abstract

The Pt3Sn nanoparticles (NPs) enriched with Pt3Sn/SnO2 interfaces (Pt3Sn@u-SnO2/NG) were achieved through thermal treatment of Pt2Sn/NG in H2 atmosphere, followed by annealing under H2 and air conditions. The unique structure...

Platinum–tin as a superior catalyst for proton exchange membrane fuel cells

“…The d spacing of Pt was 0.223 mm in line with previous reports. 39 Increase in d spacing upon alloying Pt with Sn has been reported due to the larger atomic size of Sn(158 pm) as compared to Pt (138 pm). 27,40,41…”

“…The d spacing of Pt was 0.223 mm in line with previous reports. 39 Increase in d spacing upon alloying Pt with Sn has been reported due to the larger atomic size of Sn( 158 pm) as compared to Pt (138 pm). 27,40,41 Further, STEM and elemental mapping of PtSn/VC(3) showed an uniform distribution of Pt and Sn 'co-located' on the VC support.…”

Design strategies of Pt-based electrocatalysts and tolerance strategies in fuel cells: a review

“…Similarly, Pt 3 Sn NPs enriched with Pt 3 Sn/SnO 2 interfaces have been synthesized by using a surface restructuring engineering under H 2 and air atmospheres. 109 The polyol method was first used to deposit Pt 2 Sn NPs on nitrogen-doped graphene (NG). Next, SnO 2 /Pt 3 Sn interfaces were fabricated through thermal treatment method in a H 2 atmosphere, followed by annealing under air atmosphere.…”