Kinetic Study and Simulation of Titanium Carbide-Supported, Platinum-Doped Tetrahedral Amorphous Carbon Electrodes for Hydrogen Evolution Reaction DOI Open Access
Harunal Rejan Ramji,

Nicolas Glandut,

Jean-Christophe Orlianges

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(9), P. 1916 - 1916

Published: April 23, 2025

This paper presents the kinetic study of titanium carbide (TiC)-supported, platinum-doped tetrahedral amorphous carbon (taC:Pt) referred to as TiC-taC, for hydrogen evolution reaction (HER). employs Volmer–Heyrovsky–Tafel (VHT) mechanism. A theoretical approach was utilized investigate properties these materials an HER in 0.5 M H2SO4. TiC-taC exhibited Volmer-dominated reactions with a Tafel slope 40 mV/dec and overpotential at 10 mA/cm2 185 mV. In contrast, isolated TiC taC:Pt recorded significantly higher slopes 60–110 overpotentials 871 mV 1009 mV, respectively. The developed model tested one dimension (1D) individual taC:Pt. simulated kinetics parameters were determined both taC:Pt, revealing that follows VHT steps, while VH steps. simulation results show excellent coherence experimental results. Further hybrid electrocatalyst conducted considering surface diffusion edge effects two (2D) three dimensions (3D). To best our knowledge, this FEM is first be reported due unique geometry catalyst enabling assumption effect. introduction on side support enhanced current output, aligning closely distinct compared from demonstrated strong agreement findings. Adding essential explaining output electrode. It not observed either or alone, acting pump where it absorbs cHs neighbouring sites diffusivity releases H2 via Heyrovsky reaction. While had lesser effect, indicated its positive influence HER.

Language: Английский

Advances in Catalysts for Hydrogen Production: A Comprehensive Review of Materials and Mechanisms DOI Creative Commons
Niraj Kumar, Radhamanohar Aepuru, Seul‐Yi Lee

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(4), P. 256 - 256

Published: Feb. 8, 2025

This review explores the recent advancements in catalyst technology for hydrogen production, emphasizing role of catalysts efficient and sustainable generation. involves a comprehensive analysis various materials, including noble metals, transition carbon-based nanomaterials, metal–organic frameworks, along with their mechanisms performance outcomes. Major findings reveal that while metal catalysts, such as platinum iridium, exhibit exceptional activity, high cost scarcity necessitate exploration alternative materials. Transition single-atom have emerged promising substitutes, demonstrating potential enhancing catalytic efficiency stability. These underscore importance interdisciplinary approaches to design, which can lead scalable economically viable production systems. The concludes ongoing research should focus on addressing challenges related stability, scalability, integration renewable energy sources, paving way economy. By fostering innovation development, this work aims contribute towards cleaner solutions more resilient future.

Language: Английский

Citations

2
Catalysts with three-dimensional porous structure for electrocatalytic water splitting DOI Creative Commons
Yuchen Liu, Yanning Zhang,

Zulin Sun

et al.

Sustainable materials and technologies, Journal Year: 2025, Volume and Issue: unknown, P. e01392 - e01392

Published: April 1, 2025

Language: Английский

Citations

0
Kinetic Study and Simulation of Titanium Carbide-Supported, Platinum-Doped Tetrahedral Amorphous Carbon Electrodes for Hydrogen Evolution Reaction DOI Open Access
Harunal Rejan Ramji,

Nicolas Glandut,

Jean-Christophe Orlianges

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(9), P. 1916 - 1916

Published: April 23, 2025

This paper presents the kinetic study of titanium carbide (TiC)-supported, platinum-doped tetrahedral amorphous carbon (taC:Pt) referred to as TiC-taC, for hydrogen evolution reaction (HER). employs Volmer–Heyrovsky–Tafel (VHT) mechanism. A theoretical approach was utilized investigate properties these materials an HER in 0.5 M H2SO4. TiC-taC exhibited Volmer-dominated reactions with a Tafel slope 40 mV/dec and overpotential at 10 mA/cm2 185 mV. In contrast, isolated TiC taC:Pt recorded significantly higher slopes 60–110 overpotentials 871 mV 1009 mV, respectively. The developed model tested one dimension (1D) individual taC:Pt. simulated kinetics parameters were determined both taC:Pt, revealing that follows VHT steps, while VH steps. simulation results show excellent coherence experimental results. Further hybrid electrocatalyst conducted considering surface diffusion edge effects two (2D) three dimensions (3D). To best our knowledge, this FEM is first be reported due unique geometry catalyst enabling assumption effect. introduction on side support enhanced current output, aligning closely distinct compared from demonstrated strong agreement findings. Adding essential explaining output electrode. It not observed either or alone, acting pump where it absorbs cHs neighbouring sites diffusivity releases H2 via Heyrovsky reaction. While had lesser effect, indicated its positive influence HER.

Language: Английский

Citations

0