Results 101 to 110 of about 568,795 (292)

Diffusion of hydrogen in crystalline silicon

, 1999
The coefficient of diffusion of hydrogen in crystalline silicon is calculated using tight-binding molecular dynamics. Our results are in good quantitative agreement with an earlier study by Panzarini and Colombo [Phys. Rev. Lett.
A. J. Tavendale, A. Mogro-Compero, A. Van Wieringen, C. H. Seager, D. E. Boucher, E. Kim, F. Buda, F. S. Khan, G. Panzarini, L. Goodwin, L. J. Lewis, Laurent J. Lewis, N. M. Johnson, R. Car, S. J. Pearton, Sabrina Bédard, T. Ichimiya   +16 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Use of low-energy hydrogen ion implants in high-efficiency crystalline-silicon solar cells [PDF]

The use of low-energy hydrogen implants in the fabrication of high-efficiency crystalline silicon solar cells was investigated. Low-energy hydrogen implants result in hydrogen-caused effects in all three regions of a solar cell: emitter, space charge ...
Fonash, S. J., Mu, H. C., Sigh, R.
core   +1 more source

Quantum diffusion of hydrogen

Bulletin of Materials Science, 1996
A brief overview is given on low temperature diffusive behaviour of H in Nb(OH) x , and measurement of diffusion, primarily by neutron scattering. We go in some detail into recent work on calculations of neutron structure factor as well as the diffusion coefficient of hydrogen, influenced by two-level excitations. Both
openaire   +2 more sources

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Preparation and evaluation of advanced electrocatalysts for phosphoric acid fuel cells [PDF]

Results are presented for hydrogen oxidation and hydrogen oxidation poisoned by carbon monoxide at levels between 0 and 30%. Due to the high activities that are now being observed for our platinum based electrocatalysts, the hydrogen concentrations were ...
Baris, J., Pagliaro, P., Stonehart, P.
core   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Mechanism for Adsorption, Dissociation, and Diffusion of Hydrogen in High-Entropy Alloy AlCrTiNiV: First-Principles Calculation

Nanomaterials
To investigate hydrogen behaviors in the high-entropy alloy AlCrTiNiV, density functional theory and transition state theory were used to explore the molecular H2 absorption and dissociation and the atomic H adsorption, diffusion, and penetration ...
Weilong Zheng, Liangliang Wu, Qilin Shuai, Zhaoqiang Li, Haoqi Wang, Wei Fu, Zhenxiong Jiang, Chuang Zhao, Qingsong Hua   +8 more
doaj   +1 more source

Hydrogen diffusivity in aluminium

Philosophical Magazine Letters, 1988
Abstract The diffusivity and the migration energy of H in Al at high temperatures have been found to be consistent with low-temperature experiments when the possibility of temporary localization of the H atoms at thermal equilibrium vacancies is taken into account. The migration energy in the perfect lattice is determined to be 0·52±0·07eVand DH o ≈ 8 ×
openaire   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source