Pt‐Pd Bimetallic Nanoparticles Electrodeposited over Polyaniline/Carbon Nanotube Composite for Effective Methanol Oxidation. Issue 31 (20th August 2019)

• Record Type: Journal Article
• Authors: Xiaoyu, ; Sun, ; Yan, Ruiwen; Cheng, Chao; Jin, Baokang
• Is Part Of: ChemistrySelect. Volume 4:Issue 31(2019)
• Page Start: 9216
• Page End: 9221
• Publication Date: 2019-08-20
• Subjects: Fuel cell⋅Methanol -- PANI/MWCNTs -- composites -- Pt−Pd nanoparticles; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201902255
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Polyaniline (PANI)/multiwalled carbon nanotubes (MWCNTs) composites were prepared by electrochemical technique. These composites acted as supports for electrochemical co‐deposition Pt−Pd bimetallic nanoparticles to fabricate Pt−Pd nanoparticles/PANI/MWCNTs composites (PPPM) for the first time in this work. Its structure identification data demonstrated that the diameters were 210 nm of PANI/MWCNTs composites and 3–5 nm of Pt−Pd nanoparticles, respectively. The catalytic performance of PPPM was investigated by chronoamperometry (CA) and cyclic voltammetry (CVs) method. It has been concluded that the Pt52 Pd48 nanoparticles have the highest catalytic activity in different proportions of Pt−Pd. Moreover, the Pt52 Pd48 nanoparticles/PANI/MWCNTs composite has superior catalytic performance of methanol versus commercial Pt/C catalysts. The Pt52 Pd48 nanoparticles/PANI/MWCNTs composite would have widely application as direct methanol fuel cells anode catalysts. Abstract : Polyaniline (PANI)/multiwalled carbon nanotubes (MWCNTs) composites with about 210 nm diameter acted as supports for electrochemical co‐deposition Pt−Pd bimetallic nanoparticles with 3–5 nm diameter to fabricate Pt−Pd nanoparticles/PANI/MWCNTs composites. The Pt52 Pd48 nanoparticles have the highest catalytic activity in different proportions of Pt−Pd and the Pt52 Pd48 nanoparticles/PANI/MWCNTs composite has superior catalytic performance of methanol versus commercial Pt/C catalysts. The Pt52 Pd48 nanoparticles/PANI/MWCNTs composite would have widely application as direct methanol fuel cells anode catalysts.