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The loading effect of Pt clusters on Pt/graphene nano sheets catalysts

Siburian R 1 , Ali AMM 2 , Sebayang K 3 , Supeno M 4 , Tarigan K 3 , Simanjuntak C 4 Show all authors , Aritonang SP 4 , Hutagalung F 4

Affiliations 

  • 1 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Padang Bulan, Medan, 20155, Indonesia. rikson@usu.ac.id
  • 2 Faculty of Applied Sciences, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia. ammali@uitm.edu.my
  • 3 Carbon Research Center, Universitas Sumatera Utara, Padang Bulan, Medan, 20155, Indonesia
  • 4 Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Padang Bulan, Medan, 20155, Indonesia
Sci Rep, 2021 Jan 28;11(1):2532.
PMID: 33510232 DOI: 10.1038/s41598-020-80472-1

Abstract

In this paper, we report about chemically interaction between Pt Subnano-Clusters on Graphene Nano Sheets (GNS). The aim of this research is to clarify the size effect of Pt clusters on Pt 1-7 wt.%/GNS. This research is an experimental laboratory research. GNS was synthesized by using modified Hummer's method and 1-7 wt.% Pt/GNS were prepared with impregnation method. Then, they were analyzed with TG/DTA, XRD, TEM and XPS, respectively. The results show that Pt clusters are well deposited on GNS (TG/DTA and TEM data). Those data also are consistent with XRD data. The weak and broad peaks appear at 2θ = 39°, indicating Pt metal exists on GNS. The state of Pt is confirmed by using XPS. The appearance of Pt 4f. peaks proves that Pt metal is chemical interaction on GNS. The size of Pt clusters may affect the chemically properties of Pt/GNS catalysts.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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