Pt-Pd nanoparticles decorated sulfonated graphene-poly(3,4-ethylene dioxythiophene) nanocomposite, An efficient HER electrocatalyst

Ensafi, Ali A.; Zandi‐Atashbar, Navid; Mohamadi, Zahra; Abdolmaleki, Amir; Rezaei, Behzad

doi:10.1016/j.energy.2017.03.012

Cited by 27 publications

(8 citation statements)

References 27 publications

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“…As mentioned earlier, the ideal HER electrocatalyst has a low onset potential, a low Tafel slope, and high exchange current density for maximum efficiency. In this regard, Pt-based catalysts 8,15,52,53 are generally superior to catalysts based on non-noble metals. 54−57 In comparison, PEDOT-g-PAA/Pt 15s from this work performs somewhere between these two groups.…”

Section: Hydrogen Evolution Reaction (Her) Electrocatalysismentioning

confidence: 99%

Grafting Poly(acrylic acid) from PEDOT To Control the Deposition and Growth of Platinum Nanoparticles for Enhanced Electrocatalytic Hydrogen Evolution

Hackett

Malmström

Travaš-Sejdić

2019

ACS Appl. Energy Mater.

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Electrochemical water splitting is a sustainable, environmentally friendly method of hydrogen generation for green energy. However, the ideal electrocatalyst, platinum, is limited by cost and scarcity. Thus, new approaches are needed to minimize the amount of platinum required for efficient hydrogen production, while its electrocatalytic activity is retained. In this work, we report the development of a novel electrocatalyst based on platinum nanoparticles (PtNPs) deposited on conducting poly(3,4-ethylenedioxythiophene) (PEDOT), grafted with poly(acrylic acid) (PAA) chains. The presence of PAA controls the PtNP size and prevents aggregation during electrodeposition. The composite materials demonstrated enhanced electrocatalytic activity for the hydrogen evolution reaction (HER) in acid, with onset potentials as low as −84 mV vs RHE and exchange current densities up to 161 μA cm −2 . Thus, these composite electrodes show promise as a straightforward, cost-effective alternative to conventional platinum HER catalysts. Furthermore, this novel fabrication approach shows great potential for the development of future electrocatalysts, providing an infinitely tailorable substrate for nanoparticle deposition thanks to the versatility of grafted conducting polymer films.

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Section: Hydrogen Evolution Reaction (Her) Electrocatalysismentioning

confidence: 99%

Grafting Poly(acrylic acid) from PEDOT To Control the Deposition and Growth of Platinum Nanoparticles for Enhanced Electrocatalytic Hydrogen Evolution

Hackett

Malmström

Travaš-Sejdić

2019

ACS Appl. Energy Mater.

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“…Besides, excellent durability was observed in this catalytic system. Ali A. Ensafi et al 17 designed a novel nanocomposite, i.e. , Pt–Pd alloy nanoparticles combined with a sulfonated graphene-based conductive polymer.…”

Section: Hydrogen Evolution Reaction (Her)mentioning

confidence: 99%

Novel palladium-based nanomaterials for multifunctional ORR/OER/HER electrocatalysis

2023

J. Mater. Chem. A

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“…Even with the great significance of conductive polymers; still it is a long run to study them as a state‐of‐art for water electrolysis and systematically summarize the research on CP‐based catalysts that were not addressed yet. Figure 5 shows the basic chemical structures of some common CPs [51,66–69] . Also, electrically conductive polymers such as Polyaniline, Polythiophene, Polypyrrole, etc.…”

Section: Electrochemical Synthesis Of Conductive Polymers For Electro...mentioning

confidence: 99%

“…Figure 5 shows the basic chemical structures of some common CPs. [51,[66][67][68][69] Also, electrically conductive polymers such as Polyaniline, Polythiophene, Polypyrrole, etc. can be synthesized by the chemical route and electrochemical route.…”

Section: Electrochemical Synthesis Of Conductive Polymers For Electro...mentioning

confidence: 99%

“…Similar to Pt-PEDOT, Ensafi et al fabricated a platinumpalladium based PEDOT composite HER catalyst. [69] The synthesis involved mixing a solution of prepared PEDOT-SG (sulfonated graphene) with a solution of Pt and Pd nanoparticles (NPs) to obtain PtPdNPs/PEDOT-SG nanocomposite solid. A solution of this novel catalyst was drop cast on GCE substrate.…”

Section: Platinum-based Conducting Polymers For Oer/hermentioning

confidence: 99%

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Recent Developments in Conductive Polymer‐Based Electro‐/Photoelectrocatalytic Materials for Effective Hydrogen/Oxygen Evolution Reactions: A Review

et al. 2022

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Currently, a substantially greener energy source such as hydrogen fuel cell is an alternative to fossil fuel sources, and much research has been dedicated to achieving highly efficient hydrogen (H2 gas) generation. In this line, electrochemical water splitting that involves hydrogen and oxygen evolution reactions (HER and OER, respectively) is considered to be the greener and most effective hydrogen‐generating procedure with only water as a by‐product. However, in the process of successful OER/HER, it is extremely demanding for electrocatalysts with high activity, stability and cost‐effectiveness for the water splitting process. Herein, the review proposed promising electrocatalysts such as conductive polymers (CPs) with enhanced catalytic effect with the polymer encapsulation of catalytic material that provides an increase in charge transfer kinetics both in OER/HER. Also, the review highlights the OER and HER mechanism of conducting polymers and their effect on the synergism was discussed in detail. Also, the review detailed the reduced overpotentials, importance and enhancement of catalytic efficiency with various polymers reported in both OER and HER. Here, the choice of polymers can matrix with the inorganic active sites to prevent them from aggregation and the water splitting carried out over the electrode surface results in good conductivity to charge transfer from the electrode to the active sites. In addition, the review discussed the polymers induces the photon effect with photoelectrocatalytic water splitting. Thus, the combing effect with conducting polymers and the materials with catalytic active centers open up a new kind of electrocatalyst for synthesis.

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Pt-Pd nanoparticles decorated sulfonated graphene-poly(3,4-ethylene dioxythiophene) nanocomposite, An efficient HER electrocatalyst

Cited by 27 publications

References 27 publications

Grafting Poly(acrylic acid) from PEDOT To Control the Deposition and Growth of Platinum Nanoparticles for Enhanced Electrocatalytic Hydrogen Evolution

Grafting Poly(acrylic acid) from PEDOT To Control the Deposition and Growth of Platinum Nanoparticles for Enhanced Electrocatalytic Hydrogen Evolution

Novel palladium-based nanomaterials for multifunctional ORR/OER/HER electrocatalysis

Recent Developments in Conductive Polymer‐Based Electro‐/Photoelectrocatalytic Materials for Effective Hydrogen/Oxygen Evolution Reactions: A Review

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