Electrodeposited platinum with various morphologies on carbon paper as efficient and durable self-supporting electrode for methanol and ammonia oxidation reactions

Zhang, Weiqi; Wang, Xingchen; Tan, Meihui; Liu, Huiyuan; Ma, Qiang; Xu, Qian; Pollet, Bruno G.; Su, Huaneng

doi:10.1016/j.ijhydene.2022.10.157

Cited by 22 publications

(7 citation statements)

References 58 publications

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“…Accordingly, deposition potentials ranging from 0 to −1 V/SCE were chosen based on the voltammograms of the bare GCE in an aqueous solution containing K 2 PtCl 4 (Figure S3). It is noteworthy that the impact of the deposition potential has already been reported in the previous works . A trade-off exists between activation and diffusion-limited processes during electrodeposition.…”

Section: Resultsmentioning

confidence: 54%

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Pt Nanoparticles Electrodeposited on an Ultrathin Nitrogen-Rich Underlayer for Methanol Sensors

Le,

Nguyen,

et al. 2024

ACS Appl. Nano Mater.

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Developing highly efficient nanoscale catalysts for the methanol oxidation reaction (MOR) remains crucial for advancements in methanol detection across various applications, from fuel cells to fermented beverage analysis. This study explores the potential of using nanometer-thick, nitrogen-rich organic layers as functional hosting carpets to improve the catalytic activity of electrodeposited platinum nanoparticles (Pt NPs). We demonstrate that strategically engineering the nitrogen content within these layers allows for modulation of the Pt nanoparticle size and, consequently, their catalytic performance. Notably, a nanometerthick triazole-based layer facilitates the generation of Pt NPs exhibiting good mass activity (122 A•g −1 ), and more importantly, high CO tolerance (I F /I B ratio of 11.6). Additionally, the resulting electrode displays a broad linear range for methanol detection (10 μM−1 M), with a low detection limit (3.8 μM) and high sensitivity (275 mA•mM − •cm Pt −2 ).

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Section: Resultsmentioning

confidence: 54%

“…It is noteworthy that the impact of the deposition potential has already been reported in the previous works. 37 A trade-off exists between activation and diffusionlimited processes during electrodeposition. At lower potentials, activation dominates, leading to the formation of smooth nanospheres.…”

Section: Optimization Of the Triazole-based Organicmentioning

confidence: 99%

Pt Nanoparticles Electrodeposited on an Ultrathin Nitrogen-Rich Underlayer for Methanol Sensors

Le,

Nguyen,

et al. 2024

ACS Appl. Nano Mater.

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“…Zhang et al have reported the electrodeposition (self-supporting electrode) of Pt/C for the oxidation of liquid fuels, such as ethanol and methanol. The method showed uniformly dispersed nanoparticles due to weak Vander Waal force between Pt and substrate and compared with the traditional method [14]. Notably, the influence of geometric properties such as shape, size and morphology influences the electrochemically active surface area due to increasing active sites which further improves the catalytic activity.…”

Section: Intrinsic Geometric Properties Of Pgms-m Electrocatalystmentioning

confidence: 94%

Recent Progress on Metal Hydride and High Entropy Materials as Emerging Electrocatalysts for Energy Storage and Conversion

Mkhohlakali,

Ramashala,

Mapukata

et al. 2024

Energy Consumption, Conversion, Storage, and Efficiency

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The global energy demand and energy crisis such as the use of fossil fuel for energy conversion and storage have created a need for the development of clean and sustainable renewable energy sources such as fuel cells, batteries, supercapacitors, solar. However, commercialization of renewable energy devices relies heavily on exploring and devising highly functional and stable materials. High entropy materials are emerging, high-performing electrocatalysts due to their intrinsic tenability; hence, these materials may result in earth-abundant catalysts for efficient electrochemical energy storage and conversion. In this chapter, advancements in the energy storage and conversion efficiencies of emerging materials, i.e. high entropy and metal hydrides, as well as their counterparts, i.e. PGMs and MOFs, respectively are discussed. Their applications in fuel cells, hydrogen and oxygen evolution reactions, hydrogen storage, and batteries are deliberated. Furthermore, computer modeling (density functional theory) and machine learning are factored in to supplement the catalytic processes in energy generation and storage reactions.

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“…[9b] Additionally, Su and his colleagues have prepared various morphologies of Pt on a carbon paper using the square-wave potential electro-deposition method. [43] It is well known that the use of micro/nanostructured materials can significantly increase surface area, but electrodeposition methods have shown limitations when used to create nanoparticles. Therefore, it is crucial to achieve precise electrochemical control when preparing noble metal thin layers in complex materials.…”

Section: Synthesized Through Electro-reductionmentioning

confidence: 99%

“…[228] In addition, compare with conventional electrode, Su and his colleagues enables the absence of binder, in-situ growth of Pt catalyst on carbon paper. [43] The cobalt-ruthenium oxide nano-heterostructures are successfully synthesized on carbon cloth (CoO x /RuO x -CC) for acidic OER through a simple and fast solution combustion strategy. [229] The progress of these works has inspired the researchers that it is possible to reduce the dependence on the electrode structure by modifying the structure of the catalyst itself.…”

Section: Adapt To Electrode Usementioning

confidence: 99%

Advances in Strain‐Induced Noble Metal Nanohybrids for Electro‐Catalysis: From Theoretical Mechanisms to Practical Use

Chen,

Li,

Zhao

et al. 2024

ChemElectroChem

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In response to the climate goal of achieving carbon neutrality by 2050, efficient electrochemical energy conversion devices are garnering increasing attention. However, the enhancement of electrochemical performance using noble metal electrocatalysts, along with cost reduction and electrode fabrication, remain significant challenges. Noble metal hybrid nanostructures, possessing multiple surface functionalities, lead to outstanding electrocatalytic performances and low‐cost potential. Strain effects can bolster the bonding strength between the noble metal layers and the substrate or core layers, while simultaneously affecting electrocatalytic performance through tuning the binding strength between catalytically active sites and reactants, including intermediates. This review encapsulates the research efforts directed towards improving the performance of noble metal electrocatalysts and provides an overview of the latest advancements in controlling the surface state of noble metals by incorporating a secondary component. We discuss systematic approaches to adjusting surface strain effects on noble metals, characterization techniques, and application case studies, while extracting key design indicators for readers to consider from a macroscopic perspective. Further, we outline the challenges encountered and current solutions when advancing noble metal catalysts from theoretical mechanisms to practical use. Finally, the perspectives on the future research of noble metal surface layer control techniques were also provided.

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Electrodeposited platinum with various morphologies on carbon paper as efficient and durable self-supporting electrode for methanol and ammonia oxidation reactions

Cited by 22 publications

References 58 publications

Pt Nanoparticles Electrodeposited on an Ultrathin Nitrogen-Rich Underlayer for Methanol Sensors

Pt Nanoparticles Electrodeposited on an Ultrathin Nitrogen-Rich Underlayer for Methanol Sensors

Recent Progress on Metal Hydride and High Entropy Materials as Emerging Electrocatalysts for Energy Storage and Conversion

Advances in Strain‐Induced Noble Metal Nanohybrids for Electro‐Catalysis: From Theoretical Mechanisms to Practical Use

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