Facile fabrication of hollow polyaniline/carbon nanofibers-coated platinum nanohybrid composite electrode as improved anode electrocatalyst for methanol oxidation

Published on Aug 25, 2021in Journal of Materials Science: Materials in Electronics2.22
· DOI :10.1007/S10854-021-06873-8
Bavatharani Chokkiah2
Estimated H-index: 2
(National Institute of Technology, Puducherry),
Muthusankar Eswaran3
Estimated H-index: 3
(IITs: Indian Institutes of Technology)
+ 4 AuthorsRagupathy Dhanusuraman3
Estimated H-index: 3
(National Institute of Technology, Puducherry)
Sources
Abstract
Electrochemically active platinum nanoparticles (Pt NPs) on carbon nanofibers (CNF) with electron-conducting polyaniline (PANi) nanocomposite fabricated by in situ electrodeposition using cyclic voltammetry on glassy carbon electrode (GCE). The bridging between the Pt NPs and CNF with the occurrence of platinum nitride (Pt–N) bonding and π–π bonding demonstrated the stability of PANi. Structural geometry and morphological view authenticates the successful formation of GCE/PANi-CNF-Pt electrocatalyst. To investigate the electrocatalytic performance of the synthesized nanocomposite, cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry methods were used in this work. As a result of π–π and electrostatic bonding, the prepared PANi is found to be wrapped with CNF and Pt NPs facilitates in efficient and rapid electron transfer pathway with good stability. Overall, electrochemically active GCE/PANi-CNF-Pt catalyst exhibits excellent electrocatalytic properties and promises potential applications in DMFCs.
📖 Papers frequently viewed together
8 Citations
200911.46Small
3 Authors (Shaojun Guo, ..., Erkang Wang)
144 Citations
34 Citations
References37
Newest
#1Suba Lakshmi Madaswamy (National Institute of Technology, Puducherry)H-Index: 1
#2Asma A. Alothman (KSU: King Saud University)H-Index: 7
Last. Dhanusuraman Ragupathy (National Institute of Technology, Puducherry)H-Index: 16
view all 8 authors...
Abstract This review delivers a summary of the recent advances in polyaniline based electrocatalyst for direct methanol fuel cell applications. Today’s world is urging for global energy due to the fossil fuel diminution and ecological contamination which is overthrown by the direct methanol fuel cell. Amongst the conducting polymers, polyaniline has a significant role in the direct methanol fuel cell. Due to the high conductivity, unique redox properties, high flexibility, better solubility, rea...
6 CitationsSource
#1C. Bavatharani (National Institute of Technology, Puducherry)H-Index: 2
#2E. Muthusankar (IITs: Indian Institutes of Technology)H-Index: 6
Last. Dhanusuraman Ragupathy (National Institute of Technology, Puducherry)H-Index: 16
view all 7 authors...
Abstract The search for novel nanostructures towards multifunctional applications is the main objective of numerous researches in progress. This review article mainly centres the recent research updates in the synthesis, properties, advantages and applications of polyaniline (PANI) nanofibers (NFs) based on electrospinning technique. Among various nano structured conducting polymers (CPs) based NF architecture, PANI is in spotlight drawing too much attention among the scientific communities owin...
9 CitationsSource
#1Elancheziyan Mari (KMU: Kaohsiung Medical University)H-Index: 1
#2Pei-Chien Tsai (KMU: Kaohsiung Medical University)H-Index: 7
Last. Vinoth Kumar PonnusamyH-Index: 22
view all 4 authors...
Abstract The design and development of highly efficient and environmental-friendly methods for the synthesis of electro-catalysts are highly significant for fuel cell applications. Herein, we demonstrate a facile technique for the synthesis of graphitic carbon nitride/iron oxide/palladium nanoparticles (g-C3N4/Fe2O3/PdNPs) composite towards efficient electro-catalytic oxidation of ethylene glycol. g-C3N4/Fe2O3/PdNPs nanocomposite was prepared using a one-step simultaneous electrochemical co-depo...
10 CitationsSource
#1Bavatharani Chokkiah (National Institute of Technology, Puducherry)H-Index: 2
#2Muthusankar Eswaran (National Institute of Technology, Puducherry)H-Index: 3
Last. Ragupathy Dhanusuraman (National Institute of Technology, Puducherry)H-Index: 3
view all 7 authors...
Abstract In this study, a facile two-step wet chemical approach was adopted to fabricate a novel polydiphenylamine (PDPA)/SiO2 nanosphericals decorated reduced graphene (GR) nanosheets composite material based modified fluorine-doped tin oxide electrode (FTO/GR-PDPA-SiO2) for the efficient electro-oxidation of methanol. GR based PDPA nanohybrid (GR-PDPA) and GR-PDPA-SiO2 were synthesized using in situ chemical oxidative polymerization technique. The crystalline geometry and morphological structu...
12 CitationsSource
#1C. Bavatharani (National Institute of Technology, Puducherry)H-Index: 2
#2E. Muthusankar (National Institute of Technology, Puducherry)H-Index: 6
Last. Dhanusuraman Ragupathy (National Institute of Technology, Puducherry)H-Index: 16
view all 6 authors...
Abstract In neurotransmission process, dopamine (DA) is the key molecule. Hence, the detection of dopamine plays a vital role in the primary diagnosis of diseases which is related to the irregular levels of dopamine. In this study, we proposed the electrochemically deposited Graphene Nanosheets-Polydiphenylamine-Silica (GRNS-PDPA-SiO2) modified nanohybrid electrode for an amperometric detection of dopamine. The electrochemical oxidation of DA ensures the catalytic activity of the prepared nanohy...
11 CitationsSource
#1E. Muthusankar (National Institute of Technology, Puducherry)H-Index: 6
#2Saikh Mohammad Wabaidur (KSU: King Saud University)H-Index: 21
Last. Dhanusuraman Ragupathy (National Institute of Technology, Puducherry)H-Index: 16
view all 6 authors...
Amperometric sensor of polydiphenylamine (PDPA)/phosphotungstic acid (PTA)/zinc oxide (ZnO) on glassy carbon (GC) nanohybrid composite electrode (GC/PDPA/PTA/ZnO) fabricated via facile electrochemical deposition method. The structural geometry and surface morphology were recorded by X-ray diffraction spectrometer (XRD) and scanning electron microscopy (SEM). Electro-catalytic properties and performances of nanohybrid composite were recorded by cyclic voltammetry (CV), electrochemical impedance s...
4 CitationsSource
32 CitationsSource
#1C. BavatharaniH-Index: 2
#2E. MuthusankarH-Index: 6
Last. Dhanusuraman RagupathyH-Index: 16
view all 5 authors...
4 CitationsSource
#1E. Muthusankar (National Institute of Technology, Puducherry)H-Index: 6
#2Dhanusuraman Ragupathy (National Institute of Technology, Puducherry)H-Index: 16
Abstract In this work, a copolymer (polyaniline(PANI)-copolymer(co)-polydiphenylamine (PDPA)) hybrid impregnated on graphene (Gra) nanosheets was examined. At first, graphene was synthesized by the oxidation of natural graphite employing modified Hummer’s method and subsequently reduced using hydrazine monohydrate. Then, interfacial chemical oxidative polymerization was engaged to synthesize PANI, PDPA, and copolymer (PANI/PDPA) along with graphene nanosheets in liquid–liquid (CHCl3/HCl) interfa...
14 CitationsSource
#1Muthusankar Eswaran (National Institute of Technology, Puducherry)H-Index: 3
#2Ragupathy Dhanusuraman (National Institute of Technology, Puducherry)H-Index: 3
Last. Vinoth Kumar Ponnusamy (KMU: Kaohsiung Medical University)H-Index: 22
view all 4 authors...
Abstract In this work, we report a simple one-step preparation of a novel graphitic carbon nitride/Polyaniline/Palladium nanoparticles (g-C3N4/PANI/PdNPs) based nanohybrid composite modified screen-printed electrode (SPE) for the efficient electro-oxidation reaction of methanol. g-C3N4/PANI/PdNPs nanohybrid structure was achieved by a single-step simultaneous electro-deposition method with an electrolyte solution containing palladium chloride, aniline, and g-C3N4 nanosheets. Structural and morph...
46 CitationsSource
Cited By1
Newest
#1Suba Lakshmi Madaswamy (National Institute of Technology, Puducherry)H-Index: 1
#2M. Alfakeer (Princess Nora bint Abdul Rahman University)H-Index: 6
Last. Ragupathy Dhanusuraman (National Institute of Technology, Puducherry)H-Index: 3
view all 7 authors...
Abstract null null In this work, we prepare a palladium nanoparticle dispersed on polyaniline and polydiphenylamine copolymer (Pd@PANI-PDPA) nanocomposite by in situ oxidative polymerization followed by reduction method. The synthesized Pd@PANI-PDPA nanocomposite morphology, chemical composition, molecular vibrational spectra, and crystallographic structure were analyzed by field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy with mapping (EDX), Fourier-trans...
Source