Is Pt/C More Electrocatalytic than Ru/C for Hydrogen Evolution in Alkaline Electrolytes?

Shao, Ru-Yang; Chen, Lin-Wei; Yan, Qiangqiang; Zeng, Wei-Jie; Peng, Yin; Liang, Hai‐Wei

doi:10.1021/acsaem.1c00308

Cited by 23 publications

(14 citation statements)

References 30 publications

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“…For hydrogen fuel production, it is crucial to develop efficient catalysts and to choose suitable electrolytes to speed up the HER rate. For H 2 generation, electrocatalytic systems usually integrate expensive noble metals, such as platinum catalysts, because of their unique features, such as low over potentials and ultrafast kinetics, for driving the HERs [ 33 ]. For developing electrocatalysts that are highly active, stable, durable, earth-abundant, non-toxic, exceedingly conductive, inexpensive, robust, environment-friendly, and efficacious for next-generation HER non-noble metals are being replaced with commercial high-cost Pt/C because of the scarcity of noble metals [ 34 , 35 ].…”

Section: Basic Principles Of Electrocatalytic Hermentioning

confidence: 99%

Recent Advancements in Two-Dimensional Layered Molybdenum and Tungsten Carbide-Based Materials for Efficient Hydrogen Evolution Reactions

Karuppasamy

Nichelson²,

Vikraman

et al. 2022

Nanomaterials

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Green and renewable energy is the key to overcoming energy-related challenges such as fossil-fuel depletion and the worsening of environmental habituation. Among the different clean energy sources, hydrogen is considered the most impactful energy carrier and is touted as an alternate fuel for clean energy needs. Even though noble metal catalysts such as Pt, Pd, and Au exhibit excellent hydrogen evolution reaction (HER) activity in acid media, their earth abundance and capital costs are highly debatable. Hence, developing cost-effective, earth-abundant, and conductive electrocatalysts is crucial. In particular, various two-dimensional (2D) transition metal carbides and their compounds are gradually emerging as potential alternatives to noble metal-based catalysts. Owing to their improved hydrophilicity, good conductivity, and large surface areas, these 2D materials show superior stability and excellent catalytic performances during the HER process. This review article is a compilation of the different synthetic protocols, their impact, effects of doping on molybdenum and tungsten carbides and their derivatives, and their application in the HER process. The paper is more focused on the detailed strategies for improving the HER activity, highlights the limits of molybdenum and tungsten carbide-based electrocatalysts in electro-catalytic process, and elaborates on the future advancements expected in this field.

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Section: Basic Principles Of Electrocatalytic Hermentioning

confidence: 99%

Recent Advancements in Two-Dimensional Layered Molybdenum and Tungsten Carbide-Based Materials for Efficient Hydrogen Evolution Reactions

Karuppasamy

Nichelson²,

Vikraman

et al. 2022

Nanomaterials

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“…Naturally, various catalysts have been designed for hydrogen production and combustion, [8][9][10][11] and among them, catalysts based on precious metals (PMs) generally exhibit remarkable activity and stability toward PHE, HER, and HOR. [12][13][14][15] However, these PM-based catalysts are inevitably suffering from high costs and insufficient reserves, which limits their practical and scalable applications. Thus, catalysts with efficient hydrogen reaction activity and minimum PM loadings are urgently needed for future hydrogen energy.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, hydrogen oxidation reaction (HOR), as a high‐efficiency approach for hydrogen combustion in full cells, has been undergoing the same predicament. Naturally, various catalysts have been designed for hydrogen production and combustion, 8–11 and among them, catalysts based on precious metals (PMs) generally exhibit remarkable activity and stability toward PHE, HER, and HOR 12–15 . However, these PM‐based catalysts are inevitably suffering from high costs and insufficient reserves, which limits their practical and scalable applications.…”

Section: Introductionmentioning

confidence: 99%

General approach for atomically dispersed precious metal catalysts toward hydrogen reaction

Rao

et al. 2023

Carbon Energy

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As a carbon‐free energy carrier, hydrogen has become the pivot for future clean energy, while efficient hydrogen production and combustion still require precious metal‐based catalysts. Single‐atom catalysts (SACs) with high atomic utilization open up a desirable perspective for the scale applications of precious metals, but the general and facile preparation of various precious metal‐based SACs remains challenging. Herein, a general movable printing method has been developed to synthesize various precious metal‐based SACs, such as Pd, Pt, Rh, Ir, and Ru, and the features of highly dispersed single atoms with nitrogen coordination have been identified by comprehensive characterizations. More importantly, the synthesized Pt‐ and Ru‐based SACs exhibit much higher activities than their corresponding nanoparticle counterparts for hydrogen oxidation reaction and hydrogen evolution reaction (HER). In addition, the Pd‐based SAC delivers an excellent activity for photocatalytic hydrogen evolution. Especially for the superior mass activity of Ru‐based SACs toward HER, density functional theory calculations confirmed that the adsorption of the hydrogen atom has a significant effect on the spin state and electronic structure of the catalysts.

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“…For example, Ni- and Co-based binary catalysts, such as NiFe and NiCu, FeCo, , and CuCo, , have been reported. Despite these various studies on HER catalysts, correlated activities (72–332 mV at 10 mA cm –2 ) have been reported to be much lower than those of noble metal (Pt) catalysts (40–55 mV at 10 mA cm –2 ); ,− therefore, the development of AEMWE using all non-noble metal materials remains a significant challenge owing to the low HER activity.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost and High-Performance Anion-Exchange Membrane Water Electrolysis Stack Using Non-Noble Metal-Based Materials

Park,

et al. 2023

ACS Appl. Energy Mater.

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With increasing hydrogen demand, the development of a low-cost and high-performance anion-exchange membrane water electrolysis (AEMWE) stack is crucial. Here, two AEMWE models using all non-noble metal-based components were developed. Three components of the membrane electrode assembly�a porous transport layer (PTL), an oxygen evolution reaction (OER) catalyst, and a hydrogen evolution reaction (HER) catalyst�were examined to be substituted for a non-noble metal. The results revealed that stainless steel felt and carbon paper were the anode and cathode PTLs, respectively, exhibiting the highest and most durable performance. Additionally, nickel−iron (NiFe) was selected as the most applicable OER catalyst. Further, low-loading platinum and nickel−iron oxide (NiFeO x ) were optimized as suitable HER catalysts. For a single cell, the resulting AEMWEs showed outstanding performance of 4633 and 1231 mA cm −2 at 2.1 V, with stable performance for 500 h. Further, they exhibited a higher performance relative to their cost than all noble metal AEMWEs. High performances were also observed for 5-layer stacks, in addition to stable durability and energy conversion efficiency. This work supports the commercialization of a low-cost, highperformance, and durable AEMWE stack.

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Is Pt/C More Electrocatalytic than Ru/C for Hydrogen Evolution in Alkaline Electrolytes?

Cited by 23 publications

References 30 publications

Recent Advancements in Two-Dimensional Layered Molybdenum and Tungsten Carbide-Based Materials for Efficient Hydrogen Evolution Reactions

Recent Advancements in Two-Dimensional Layered Molybdenum and Tungsten Carbide-Based Materials for Efficient Hydrogen Evolution Reactions

General approach for atomically dispersed precious metal catalysts toward hydrogen reaction

Low-Cost and High-Performance Anion-Exchange Membrane Water Electrolysis Stack Using Non-Noble Metal-Based Materials

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