» Articles » PMID: 31458374

Enhanced Photoinduced Electrocatalytic Oxidation of Methanol Using Pt Nanoparticle-Decorated TiO-Polyaniline Ternary Nanofibers

Overview
Journal ACS Omega
Specialty Chemistry
Date 2019 Aug 29
PMID 31458374
Citations 3
Authors
Affiliations
Soon will be listed here.
Abstract

Herein, perylene-3,4,9,10-tetracarboxylic acid-doped polyaniline (PTP) nanofibers with/without photoreactive anatase TiO (TiO-PTP and PTP, respectively) have been successively synthesized and subsequently decorated by Pt nanoparticles (Pt NPs) to prepare Pt-PTP and Pt-TiO-PTP composites. High-resolution transmission electron microscopy confirms the presence of ∼3 nm spherical-shaped Pt NPs on both the composites along with TiO on Pt-TiO-PTP. Pt loading on the composites is deliberately kept similar to compare the methanol electro-oxidation in the two composites. The Pt nanocomposites along with the precursor polyanilines are characterized by optical characterization, X-ray diffraction study, X-ray fluorescence spectroscopy, and Raman spectroscopy. The ternary composite-modified (Pt-TiO-PTP) electrode demonstrates high electrocatalytic performance for methanol oxidation reaction in acid medium than Pt-PTP and Pt-TiO. The higher electrochemical surface area (1.7 times), high forward/backward current ratio, and the higher CO tolerance ability for Pt-TiO-PTP make it a superior catalyst for methanol oxidation reaction in the electrochemical process than Pt-PTP. Moreover, the catalytic activity of Pt-TiO-PTP is further enhanced significantly with light irradiation. The cooperative effects of photo- and electrocatalysis on methanol oxidation reaction in Pt-TiO-PTP enhance the methanol oxidation catalytic activity approximately 1.3 times higher in light illumination than in dark. Therefore, the present work will be proficient to get a light-assisted sustainable approach for developing the methanol oxidation reaction activity of Pt NP-containing catalysts in direct methanol fuel cells.

Citing Articles

Pd Nanoparticle-Decorated Novel Ternary BiOCO-BiMoO-CuO Heterojunction for Enhanced Photo-electrocatalytic Ethanol Oxidation.

Bera K, Chowdhury A, Kanti Bera S, Das M, Roy A, Das S ACS Omega. 2023; 8(31):28419-28435.

PMID: 37576621 PMC: 10413847. DOI: 10.1021/acsomega.3c02669.


Molybdenum Carbide/Ni Nanoparticles Embedded into Carbon Nanofibers as an Effective Non-Precious Catalyst for Green Hydrogen Production from Methanol Electrooxidation.

Abdel-Aty M, Gomaa H, Abdu H, Almasri R, Irfan O, Barakat N Polymers (Basel). 2023; 15(11).

PMID: 37299229 PMC: 10255791. DOI: 10.3390/polym15112430.


Free-Standing, Interwoven Tubular Graphene Mesh-Supported Binary AuPt Nanocatalysts: An Innovative and High-Performance Anode Methanol Oxidation Catalyst.

Nguyen A, Tran V, Siahaan A, Kan H, Hsu Y, Hsu C Nanomaterials (Basel). 2022; 12(10).

PMID: 35630911 PMC: 9143563. DOI: 10.3390/nano12101689.

References
1.
Steele B, Heinzel A . Materials for fuel-cell technologies. Nature. 2001; 414(6861):345-52. DOI: 10.1038/35104620. View

2.
Drew K, Girishkumar G, Vinodgopal K, Kamat P . Boosting fuel cell performance with a semiconductor photocatalyst: TiO2/Pt-Ru hybrid catalyst for methanol oxidation. J Phys Chem B. 2006; 109(24):11851-7. DOI: 10.1021/jp051073d. View

3.
Hsin Y, Hwang K, Yeh C . Poly(vinylpyrrolidone)-modified graphite carbon nanofibers as promising supports for PtRu catalysts in direct methanol fuel cells. J Am Chem Soc. 2007; 129(32):9999-10010. DOI: 10.1021/ja072367a. View

4.
Li D, Huang J, Kaner R . Polyaniline nanofibers: a unique polymer nanostructure for versatile applications. Acc Chem Res. 2008; 42(1):135-45. DOI: 10.1021/ar800080n. View

5.
Bianchini C, Shen P . Palladium-based electrocatalysts for alcohol oxidation in half cells and in direct alcohol fuel cells. Chem Rev. 2009; 109(9):4183-206. DOI: 10.1021/cr9000995. View