Cu–Co–P electrodeposited on carbon paper as an efficient electrocatalyst for hydrogen evolution reaction in anion exchange membrane water electrolyzers

Guo, Wenwu; Kim, Junhyeong; Kim, Hyunki; Ahn, Sang Hyun

doi:10.1016/j.ijhydene.2021.03.120

Cited by 29 publications

(21 citation statements)

References 78 publications

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“…For example, specific activities well above 100 mA mg −1 [31,55] were obtained for cobalt-copper mixed oxides anodic catalysts deposited by magnetron sputtering, values that outperform those of other cells operated under similar conditions with catalysts of the same composition but prepared by other methods [19,41,134,135]. Otherwise, specific activities about 10 times higher were obtained for IrO 2 electrodes prepared by electrodeposition, even using non-noble metals as a cathode electrode [66], compared to other wet methods such as the hydrothermal method [41]. * per amount of anodic catalyst.…”

Section: Aemwe Cell Performancementioning

confidence: 92%

“…Currently, CuCoO x , Ni-alloys, and graphene are extensively used as HER catalysts [10,[65][66][67]. Among them, Ni can be considered the most promising catalyst for AEMWE since it can be used both as anodic and as cathodic catalysts for this type of process.…”

Section: Her Catalystsmentioning

confidence: 99%

“…These electrodes could be used as both anodes and cathodes and depicted a high performance and stability after 10 h of testing. The Co-Ni-P catalyst presented the best electrochemical performance, obtaining approximately 68 mA cm −2 at 1.9 V. Guo, W. et al [66] fabricated Cu-Co-P catalysts by electrodeposition on carbon paper, varying the catalyst loading and the Cu content. The electrode exhibiting the highest performance was used as the cathodic electrode, while a commercial IrO 2 was used as the anode in an AEMWE.…”

Section: Thin Film Deposition Routes 421 Electrodepositionmentioning

confidence: 99%

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Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

et al. 2021

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Water electrolysis to obtain hydrogen in combination with intermittent renewable energy resources is an emerging sustainable alternative to fossil fuels. Among the available electrolyzer technologies, anion exchange membrane water electrolysis (AEMWE) has been paid much attention because of its advantageous behavior compared to other more traditional approaches such as solid oxide electrolyzer cells, and alkaline or proton exchange membrane water electrolyzers. Recently, very promising results have been obtained in the AEMWE technology. This review paper is focused on recent advances in membrane electrode assembly components, paying particular attention to the preparation methods for catalyst coated on gas diffusion layers, which has not been previously reported in the literature for this type of electrolyzers. The most successful methodologies utilized for the preparation of catalysts, including co-precipitation, electrodeposition, sol–gel, hydrothermal, chemical vapor deposition, atomic layer deposition, ion beam sputtering, and magnetron sputtering deposition techniques, have been detailed. Besides a description of these procedures, in this review, we also present a critical appraisal of the efficiency of the water electrolysis carried out with cells fitted with electrodes prepared with these procedures. Based on this analysis, a critical comparison of cell performance is carried out, and future prospects and expected developments of the AEMWE are discussed.

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Section: Aemwe Cell Performancementioning

confidence: 92%

Section: Her Catalystsmentioning

confidence: 99%

Section: Thin Film Deposition Routes 421 Electrodepositionmentioning

confidence: 99%

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Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

et al. 2021

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“…38,39 In addition, the morphology, porosity, and composition of the catalyst, which affect the HER activity, can be controlled by adjusting the deposition parameters, such as the potential, time, and electrolyte composition. 40,41 The electrocatalysts prepared by electrodeposition have high electrical conductivity, owing to the rigid contact between the catalyst and the substrate. 42 The etching process is used in various fields as an efficient method capable of achieving unique physicochemical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Among various methods for fabricating porous electrodes, electrodeposition is an effective approach involving simple and rapid processes 38,39 . In addition, the morphology, porosity, and composition of the catalyst, which affect the HER activity, can be controlled by adjusting the deposition parameters, such as the potential, time, and electrolyte composition 40,41 . The electrocatalysts prepared by electrodeposition have high electrical conductivity, owing to the rigid contact between the catalyst and the substrate 42 …”

Section: Introductionmentioning

confidence: 99%

Restructured Co‐Ru alloys via electrodeposition for efficient hydrogen production in proton exchange membrane water electrolyzers

Lee

Park

Kim

et al. 2022

Intl J of Energy Research

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Summary The design of robust and high‐performance hydrogen evolution reaction (HER) catalysts is crucial for the scalable production of hydrogen by electrochemical water splitting. In this work, we fabricated hierarchically porous Co‐Ru catalysts with excellent catalytic activity and durability in acidic media. The morphology of the Co‐Ru catalysts was successfully controlled through an optimized electrochemical process. Among all Co‐Ru samples prepared in this study, the Co72Ru28 catalyst exhibited the largest catalytic surface area, as well as excellent HER activity (overpotential of 26.4 mV at −10 mA cm−2) and durability. X‐ray photoelectron spectroscopy measurements revealed the electron transfer between Co and Ru, indicating that the formation of the Co‐Ru alloy improved the activity and durability of the catalyst. Furthermore, a proton exchange membrane water electrolyzer (PEMWE) prepared with the Co72Ru28 sample showed excellent performances (3.4 A cm−2 at 2.0 Vcell), illustrating the promising potential of the present Co‐Ru catalysts as cathode materials for PEMWE systems.

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Cu Embedded in Co–P Nanosheets with Super Wetting Structure for Accelerated Overall Water Splitting under Simulated Industrial Conditions

Deng,

Zhang

2024

Advanced Energy Materials

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The development of advanced electrocatalysts with exceptional performance at high current densities is pivotal for reducing electric energy consumption in industrial water splitting for hydrogen production. Herein, a flexible one‐step electrodeposition approach is developed to synthesize superhydrophilic 3D flower‐like clusters of Cu–Co–P nanosheets grown in situ on nickel foam (NF). Introducing Cu into Co–P causes strong electron interactions, forming an electronic configuration favorable for the adsorption and desorption of intermediates, which significantly improves the intrinsic catalytic activity. The as‐deposited Cu–Co–P/NF display notable bifunctional catalytic activity with low overpotentials of 259 and 65 mV for the oxygen and hydrogen evolution reactions, respectively, at 10 mA cm−2. Superwetting 3D flower‐like nanostructures are conducive to the penetration of electrolytes and the rapid release of bubbles, enabling the efficient utilization of active sites and the timely release of bubble stress under high current densities. An assembled Cu–Co–P/NF(+, −) electrolyzer achieves an impressive voltage of 1.85 V at 500 mA cm−2 for water splitting and appreciable stability for over 220 h under simulated industrial conditions. This work offers an attractive strategy for regulating superaerophobic Co–P electrocatalysts for industrial water splitting, which can contribute to practical applications.

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Cu–Co–P electrodeposited on carbon paper as an efficient electrocatalyst for hydrogen evolution reaction in anion exchange membrane water electrolyzers

Cited by 29 publications

References 78 publications

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

Restructured Co‐Ru alloys via electrodeposition for efficient hydrogen production in proton exchange membrane water electrolyzers

Cu Embedded in Co–P Nanosheets with Super Wetting Structure for Accelerated Overall Water Splitting under Simulated Industrial Conditions

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