English
Related papers

Related papers: The Haber Process Made Efficient by Hydroxylated G…

200 papers

Based on first principles density functional theory calculations we explore the energetics of the conversion of carbon mono and dioxide to methane over graphene oxide surfaces. Similar to the recently discovered hydration of various organic…

Materials Science · Physics 2013-07-23 Danil W. Boukhvalov

We develop a simple chemical method to obtain bulk quantities of N-doped, reduced graphene oxide (GO) sheets through thermal annealing of GO in ammonia. X-ray photoelectron spectroscopy (XPS) study of GO sheets annealed at various reaction…

Materials Science · Physics 2009-10-07 Xiaolin Li , Hailiang Wang , Joshua T. Robinson , Hernan Sanchez , Georgi Diankov , Hongjie Dai

The plasma-chemical process of producing hydrogen from propane under the excitation by laser radiation has been studied. The study was carried out using femtosecond (35 fs) and nanosecond (7 ns) pulsed laser radiation sources. Experimental…

Plasma Physics · Physics 2023-12-29 Yu. S. Tveryanovich , A. V. Povolotskiy , S. S. Lunkov

The catalytic activities of high-spin small Fe(III) oxides have been investigated for efficient hydrogen production through ammonia decomposition, using the Artificial Force Induced Reaction (AFIR) method within the framework of density…

Atomic and Molecular Clusters · Physics 2024-10-01 Sapajan Ibragimov , Andrey Lyalin , Sonu Kumar , Yuriko Ono , Tetsuya Taketsugu , Maciej Bobrowski

The influence of post-build processing on the hydrogen embrittlement behavior of additively manufactured (AM) 316L stainless steel fabricated using laser powder bed fusion was assessed at both room temperature and -50$^\circ$ C via uniaxial…

Chemical Physics · Physics 2024-04-03 G. Álvarez , Z. Harris , K. Wada , C. Rodríguez , E. Martínez-Pañeda

Hydrogen is a promising energy carrier and key agent for many industrial chemical processes1. One method for generating hydrogen sustainably is via the hydrogen evolution reaction (HER), in which electrochemical reduction of protons is…

Graphene---hexagonal-boron-nitride---InSb near-field structures are designed and optimized to enhance the output power and energy efficiency of the thermophotovoltaic systems working in the temperature range of common industrial waste heat,…

Applied Physics · Physics 2019-10-23 Rongqian Wang , Jincheng Lu , Jian-Hua Jiang

Hydrogen production is a vital process in the quest for decarbonization and a sustainable future. This conversation explores the various technologies used in hydrogen production, such as steam methane reforming, electrolysis, and biomass…

Applied Physics · Physics 2024-10-11 Mohammad Abubakr , Suhaib Shahid , Iram Arman

Fast and controllable cooling at nanoscales requires a combination of highly efficient passive cooling and active cooling. While passive cooling in graphene-based devices is quite effective due to graphene's extraordinary heat-conduction,…

Mesoscale and Nanoscale Physics · Physics 2017-03-08 Junxi Duan , Xiaoming Wang , Xinyuan Lai , Guohong Li , Kenji Watanabe , Takashi Taniguchi , Mona Zebarjadi , Eva Y. Andrei

Ammonia poses significant environmental challenges due to its role in water pollution, contributing to eutrophication and several detrimental environmental and ecological issues. Addressing the efficient removal or conversion of ammonia is,…

This study presents a novel and ecofriendly method for synthesizing ammonium nitrate using activated prepared through air and ammonia plasma treatments. Initially, PAW containing nitrate ions is produced by treating water with air plasma.…

Plasma Physics · Physics 2024-05-29 Vikas Rathore , Vyom Desai , Nirav I Jamnapara , Sudhir Kumar Nema

Based on combination of experimental measurements and first-principles calculations we report a novel carbon-based catalytic material and describe significant acceleration of the hydrogenation of magnesium at room temperature in presence of…

Materials Science · Physics 2012-11-13 A. Ye. Yermakov , D. W. Boukhvalov , M. A. Uimin , E. S. Lokteva , A. V. Erokhin , N. N. Schegoleva

Interconnect materials with ultralow dielectric constant, and good thermal and mechanical properties are crucial for the further miniaturization of electronic devices. Recently, it has been demonstrated that ultrathin amorphous boron…

In this work, we report on the growth of hexagonal boron nitride (hBN) crystals from an iron flux at atmospheric pressure and high temperature and demonstrate that (i) the entire sheet of hBN crystals can be detached from the metal in a…

The power of polymorphism in carbon is vividly manifested by the numerous applications of carbon-based nano-materials. Ranging from environmental issues to biomedical applications, it has the potential to address many of today's dire…

Materials Science · Physics 2017-03-28 Obaidur Rahaman , Bohayra Mortazavi , Arezoo Dianat , Gianaurelio Cuniberti , Timon Rabczuk

Ammonia NH3 is an important raw material for nitrogen fertilizer production and is widely used in industry. It is also a carbon free renewable fuel and an excellent hydrogen storage material. Reaction conditions of traditional Haber Bosch…

Chemical Physics · Physics 2021-12-08 Yuan Tian , Yanrong Liu , Hao Wang , Lei Liu , Wenping Hu

Hydrogen peroxide (H2O2) stands as one of the foremost utilized oxidizing agents in modern times. The established method for its production involves the intricate and costly anthraquinone process. However, a promising alternative pathway is…

We propose an innovative, easy-to-implement approach to synthesize large-area singlecrystalline graphene sheets by chemical vapor deposition on copper foil. This method doubly takes advantage of residual oxygen present in the gas phase.…

The free energy and other thermodynamic properties of hexagonal-close-packed iron are calculated by direct {\em ab initio} methods over a wide range of pressures and temperatures relevant to the Earth's core. The {\em ab initio}…

Condensed Matter · Physics 2007-05-23 D. Alfe` , G. D. Price , M. J. Gillan

A reliable process for compressing hydrogen and for removing all contaminants is that of the metal hydride thermal compression. The use of metal hydride technology in hydrogen compression applications though, requires thorough structural…

Materials Science · Physics 2014-01-15 E. D. Koultoukis , E. I Gkanas , S. S. Makridis , C. N. Christodoulou , D. Fruchart , A. K. Stubos