Direct electrodeposition of platinum nanoparticles@graphene oxide@nickel-copper@nickel foam electrode as a durable and cost-effective catalyst with remarkable performance for electrochemical hydrogen evolution reaction

Lotfi, N.; Shahrabi, T.; Yaghoubinezhad, Yadollah; Darband, Gh. Barati

doi:10.1016/j.apsusc.2019.144571

Cited by 40 publications

(14 citation statements)

References 79 publications

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“…In the case of Ni, the presence of holes and depressions in the continuous layer is clearly visible, which can unambiguously be ascribed to the accompanying HER during the Ni electrodeposition process (Figure b). The occurrence of HER during Ni deposition is not surprising, as Ni is a rather good HER catalyst and certainly much more active than Cu. , …”

Section: Results and Discussionmentioning

confidence: 99%

“…The occurrence of HER during Ni deposition is not surprising, as Ni is a rather good HER catalyst and certainly much more active than Cu. 10,23 To obtain the information on the mechanical properties of all deposited layers, i.e., rGO and Cu@rGO and Ni@rGO composites, we performed nanoindentation measurements. The obtained results suggest that the mechanical properties are governed by the nature and structure of the metallic layer preferentially; the Ni@rGO composite shows 4-fold higher hardness than the Cu@rGO composite (Figure S3 in the Supporting Information).…”

Section: ■ Introductionmentioning

confidence: 99%

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New Insights into the Metallization of Graphene-Supported Composite Materials─from 3D Cu-Grown Structures to Free-Standing Electrodeposited Porous Ni Foils

et al. 2022

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The conductivity and the state of the surface of supports are of vital importance for metallization via electrodeposition. In this study, we show that the metallization of a carbon fiber-reinforced polymer (CFRP) can be carried out directly if the intermediate graphene oxide (GO) layer is chemically reduced on the CFRP surface. Notably, this approach utilizing only the chemically reduced GO as a conductive support allows us to obtain insights into the interaction of rGO and the electrodeposited metal. Our study reveals that under the same contact current experimental conditions, the electrodeposition of Cu and Ni on rGO follows significantly different deposition modes, resulting in the formation of three-dimensional (3D) and free-standing metallic foils, respectively. Considering that Ni adsorption energy is larger than Ni cohesive energy, it is expected that the adhesion of Ni on rGO@CFRP is enhanced compared to Cu. In contrast, the adhesion of deposited Ni is reduced, suggesting diffusion of H+ between rGO and CFRP, which promotes the hydrogen evolution reaction (HER) and results in the formation of free-standing Ni foils. We ascribe this phenomenon to the unique properties of rGO and the nature of Cu and Ni deposition from electrolytic baths. In the latter, the high adsorption energy of Ni on defective rGO along with HER is the key factor for the formation of the porous layer and free-standing foils.

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Section: Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

New Insights into the Metallization of Graphene-Supported Composite Materials─from 3D Cu-Grown Structures to Free-Standing Electrodeposited Porous Ni Foils

et al. 2022

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“…The authors note that Cu-modified nickel foam has a much lower cost compared to Au mesh current collectors used in syngas SOFCs, therefore, its usage can provide economic benefits for large-scale commercialization of such electrochemical devices. Direct electrodeposition is widely used for modification of Ni foam-based electrodes possessing low overpotential toward hydrogen and oxygen evolution reactions to improve efficiency of water splitting for hydrogen production [102][103][104].…”

Section: Electrodeposition Methods For the Formation Of Sofc Ni-cermet Anodes And Modification Of Ni-foam-based Anode Collectorsmentioning

confidence: 99%

Opportunities, Challenges and Prospects for Electrodeposition of Thin-Film Functional Layers in Solid Oxide Fuel Cell Technology

Калинина

Pikalova

2021

Materials

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Electrolytic deposition (ELD) and electrophoretic deposition (EPD) are relevant methods for creating functional layers of solid oxide fuel cells (SOFCs). This review discusses challenges, new findings and prospects for the implementation of these methods, with the main emphasis placed on the use of the ELD method. Topical issues concerning the formation of highly active SOFC electrodes using ELD, namely, the electrochemical introduction of metal cations into a porous electrode backbone, the formation of composite electrodes, and the electrochemical synthesis of perovskite-like electrode materials are considered. The review presents examples of the ELD formation of the composite electrodes based on porous platinum and silver, which retain high catalytic activity when used in the low-temperature range (400–650 °C). The features of the ELD/EPD co-deposition in the creation of nanostructured electrode layers comprising metal cations, ceramic nanoparticles, and carbon nanotubes, and the use of EPD to create oriented structures are also discussed. A separate subsection is devoted to the electrodeposition of CeO2-based film structures for barrier, protective and catalytic layers using cathodic and anodic ELD, as well as to the main research directions associated with the deposition of the SOFC electrolyte layers using the EPD method.

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“…Table 4 summarizes the deposition conditions and HER activity of state-of-the-art noble-metalbased electrodes in an alkaline media. [76,77,[83][84][85][86][87][88][89][90][91][92] Cheng et al reported a Pt nanopillar-array catalyst electrodeposited on an anodized aluminum oxide substrate, and the length of the Pt nanopillar could be controlled by adjusting the electrodeposition time. [76] The Pt nanopillar array with a length of 450 nm exhibited an overpotential of 78 mV at −10 mA cm −2 and a Tafel slope of 59 mV dec −1 in a 1.0 M KOH electrolyte.…”

Section: 12mentioning

confidence: 99%

“…Recently, heterostructured catalysts with noble metal/ transition metal combinations have been considered as effective materials for accelerating the water dissociation step, owing to their moderate hydrogen adsorption energy. [83][84][85][86][87][88][89][90][91][92] Zhou et al reported single-atom Pt immobilized on NiO/Ni, which enables the modulation of the adsorption affinity toward both OH* and H*, resulting in a faster water dissociation step and a reduced energy barrier for the Volmer step (Figure 2A). [83] Furthermore, the anchored Pt atoms on the NiO/Ni interfaces induced a more suitable H binding energy (ΔG H* : −0.07 eV) than that of Pt atoms in NiO (ΔG H* : 0.74 eV) and Ni (ΔG H* : −0.38 eV), which efficiently facilitated H* conversion and H 2 desorption for improved HER activity in alkaline media.…”

Section: 12mentioning

confidence: 99%

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

Kim

Han

et al. 2022

Exploration

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The development of electrocatalysts for energy conversion systems is essential for alleviating environmental problems and producing useful energy sources as alternatives to fossil fuels. Improving the catalytic performance and stability of electrocatalysts is a major challenge in the development of energy conversion systems. Moreover, understanding their electrode structure is important for enhancing the energy efficiency. Recently, binder-free self-supported electrodes have been investigated because the seamless contact between the electrocatalyst and substrate minimizes the contact resistance as well as facilitates fast charge transfer at the catalyst/substrate interface and high catalyst utilization. Electrodeposition is an effective and facile method for fabricating self-supported electrodes in aqueous solutions under mild conditions. Facile fabrication without a polymer binder and controlability of the compositional and morphological properties of the electrocatalyst make electrodeposition methods suitable for enhancing the performance of energy conversion systems. Herein, we summarize recent research on self-supported electrodes fabricated by electrodeposition for energy conversion reactions, particularly focusing on cathodic reactions of electrolyzer system such as hydrogen evolution, electrochemical CO 2 reduction, and electrochemical N 2 reduction reactions. The deposition conditions, morphological and compositional properties, and catalytic performance of the electrocatalyst are reviewed. Finally, the prospective directions of electrocatalyst development for energy conversion systems are discussed.

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Direct electrodeposition of platinum nanoparticles@graphene oxide@nickel-copper@nickel foam electrode as a durable and cost-effective catalyst with remarkable performance for electrochemical hydrogen evolution reaction

Cited by 40 publications

References 79 publications

New Insights into the Metallization of Graphene-Supported Composite Materials─from 3D Cu-Grown Structures to Free-Standing Electrodeposited Porous Ni Foils

New Insights into the Metallization of Graphene-Supported Composite Materials─from 3D Cu-Grown Structures to Free-Standing Electrodeposited Porous Ni Foils

Opportunities, Challenges and Prospects for Electrodeposition of Thin-Film Functional Layers in Solid Oxide Fuel Cell Technology

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

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