Relevant bibliographies by topics / Langmuir-Hinshelwood (LH)

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Academic literature on the topic 'Langmuir-Hinshelwood (LH)'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Langmuir-Hinshelwood (LH)"

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Liu, Yi, Li-Ming Yang, and Eric Ganz. "First-Principles Investigations of Single Metal Atoms (Sc, Ti, V, Cr, Mn, and Ni) Embedded in Hexagonal Boron Nitride Nanosheets for the Catalysis of CO Oxidation." Condensed Matter 4, no. 3 (2019): 65. http://dx.doi.org/10.3390/condmat4030065.

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We evaluated isolated transition metal atoms (Sc, Ti, V, Cr, Mn, and Ni) embedded in hexagonal-BN as novel single atom catalysts for CO oxidation. We predicted that embedded Ni atoms should have superior performance for this task. Ti, V, and Mn bind CO2 too strongly and so the reaction will not proceed smoothly. We studied the detailed reaction processes for Sc, Cr, and Ni. The Langmuir–Hinshelwood (LH), Eley–Rideal (ER), and the new termolecular Eley–Rideal (TER) processes for CO oxidation were investigated. Sc was not effective. Cr primarily used the ER process, although the barrier was rela
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Lin, Long, Pei Shi, Linwei Yao, et al. "First-principles study on CO oxidation on CuO(111) surface prefers the Eley−Rideal or Langmuir−Hinshelwood pathway." Nanotechnology 33, no. 20 (2022): 205504. http://dx.doi.org/10.1088/1361-6528/ac4f19.

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Abstract Using the first-principles approach, we investigated the electronic and chemical properties of cupric oxide CuO (110) and CuO (111) and substantiated their catalytic activity toward CO oxidation. It is found that CuO (111) surface is more stable than the CuO (110) surface. We firstly study that adsorption of CO and O2 on perfect, oxygen vacancies and Cu-anchored CuO (111) surface. It is found that adsorption of CO and O2 molecules are chemical. Then we selected the most stable adsorption structure of CO/O2 to investigated the CO oxidation mechanism on different surface, here we choose
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Dai, Guoliang, Lei Chen, and Xin Zhao. "Tungsten-Embedded Graphene: Theoretical Study on a Potential High-Activity Catalyst toward CO Oxidation." Materials 11, no. 10 (2018): 1848. http://dx.doi.org/10.3390/ma11101848.

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The oxidation mechanism of CO on W-embedded graphene was investigated by M06-2X density functional theory. Two models of tungsten atom embedded in single and double vacancy (W-SV and W-DV) graphene sheets were considered. It was found that over W-SV-graphene and W-DV-graphene, the oxidation of CO prefers to Langmuir-Hinshelwood (LH) and Eley-Rideal (ER) mechanism, respectively. The two surfaces exhibit different catalytic activity during different reaction stages. The present results imply that W-embedded graphene is a promising catalyst for CO oxidation, which provides a useful reference for
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QAISRANI, A. U., K. M. KHAN, and M. KHALID. "EFFECT OF ELEY–RIDEAL PROCESS ON THE PHASE DIAGRAM OF A MONOMER–DIMER CATALYTIC REACTION ON (001) SURFACE AND SUBSURFACE OF A SIMPLE CUBIC STRUCTURE." International Journal of Modern Physics C 15, no. 09 (2004): 1215–25. http://dx.doi.org/10.1142/s0129183104006650.

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We have investigated the effects of the Eley–Rideal (ER) process on the phase diagram of the Langmuir–Hinshelwood (LH) type monomer–dimer ( CO – O 2) catalytic reaction on (001) surface and subsurface of a simple cubic structure. With the consideration of a new pathway in which a dimer is adsorbed in such a way that it takes one surface site whereas second site may be from a surface or from a subsurface, a situation close to experiments is observed, i.e., with slight introduction of the monomer ( CO ), the production of AB2 starts. In this case, the qualitative trend of surface oxygen coverage
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Nuryono, Nuryono, V. V. H. Susanti, and Narsito Narsito. "KINETIC STUDY ON ADSORPTION OF CHROMIUM(lIl) TO DIATOMACEOUS EARTH PRE-TREATED WITH SULFURIC AND HYDROCHLORIC ACIDS." Indonesian Journal of Chemistry 3, no. 1 (2010): 32–38. http://dx.doi.org/10.22146/ijc.21903.

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In this research, the effect of Sangiran diatomaceous earth pre-treatment with sulfuric acid (H2SO4) and hydrochloric acid (HCl) on the kinetics of adsorption for Cr(III) in aqueous solution has been studied. The research has been carried out by mixing an amount of diatomeaeous earth with HCl or H2SO4 in various concentrations for two hours at temperature of 150 - 200°C. The mixture was washed with water until neutral, and the residue was dried at 70°C for four hours. The result then was used as adsorbent. Adsorption was carried out by mixing an amount of adsorbent with Cr(III) solution in var
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Azmiyawati, Choiril. "Kajian Kinetika Adsorpsi Mg(II) pada Silika Gel Termodifikasi Gugus Sulfonat." Jurnal Kimia Sains dan Aplikasi 9, no. 2 (2006): 35–39. http://dx.doi.org/10.14710/jksa.9.2.35-39.

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Dalam penelitian ini telah dikaji pengaruh perlakuan silika gel dengan γ-glisidoksipropiltrimetoksisilan (γ-GPS) dan garam mononatrium asam 4-amino-5-hidroksi-2,7-naftalenadisulfonat (C10H8NNaO7S2) sebagai perlakuan awal, terhadap kinetika adsorpsi magnesium, Mg(II) dalam larutan. Perlakuan dikerjakan dengan mereaksikan silika gel dan γ-GPS membentuk senyawa Si-Ep yang berfungsi sebagai senyawa perantara dalam pembuatan silika gel termodifikasi gugus sulfonat. Si-Ep selanjutnya direaksikan dengan garam sulfonat sehingga diperoleh Si-SO3H (silika sulfonat) yang berupa padatan. Padatan (adsorben
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Qaisrani, A. U., and M. Khalid. "THE EFFECT OF NO AND O2 CONCENTRATION IN A THREE COMPONENT CO-NOO2 REACTION ON CATALYTIC SURFACE APPLYING THE PRECURSOR MECHANISM: A COMPUTER SIMULATION STUDY." Nucleus 49, no. 4 (2012): 247–53. https://doi.org/10.71330/thenucleus.2012.780.

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We have studied a model for the three component CO-NO-O2 catalytic reaction on hexagonal surface through Monte Carlo simulations. This study is based on non-thermal process, which involves the precursor motion of CO molecule. The effect of ratio NO:O2 on the catalytic reduction of NO into N and O and oxidation of CO to CO2 are introduced. Many observations are recorded in the three component reaction. It is observed that with the inclusion of precursor mechanism with the Langmuir-Hinshelwood (LH) mechanism, the reactive window gets enhanced. The phase diagrams of the surface coverage with CO,
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Zhang, Wu. "Preparation of the anatase phase TiO2 nanocrystallites using subcritical water as the solvent and evaluation of their photocatalytic properties under visible light irradiation." Green Processing and Synthesis 7, no. 6 (2018): 506–14. http://dx.doi.org/10.1515/gps-2017-0157.

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Abstract Anatase phase TiO2 nanocrystallites are prepared using subcritical water and Rhodamine B (RB) as the solvent and the model pollutant, respectively, to test the photocatalytic activity of the obtained TiO2 nanocrystallites. The experimental results indicate that the prepared products exhibit better photocatalytic properties than those of commercial P25. The sample characterization results also indicate that the anatase phase TiO2 nanocrystallites are generated in the hydrolysis process and that the crystallinity is remarkably increased after calcination. The crystallite sizes of the an
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Qaisrani, A. U., M. Khalid, and B. Y. Akhtar. "THE EFFECT OF RELATIVE CONCENTRATION OF NO AND O2 IN A THREE COMPONENT NO-CO-O2 REACTION FOR THE ELEY-RIDEAL MECHANISM." Nucleus 49, no. 2 (2012): 71–78. https://doi.org/10.71330/thenucleus.2012.800.

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Monte Carlo simulations have been used to explore the effect of the Eley-Rideal (ER) mechanism for three component CO-NO-O2 heterogeneous catalytic reaction on hexagonal lattice. The system is studied for CO and XO; where XO is NO and O2 with ratio NO:O2. The effect of ratio NO:O2 on the catalytic reduction of NO into N and O and oxidation of CO to CO2 are introduced into the model. Many observations are recorded in this three component reaction. It is observed that with the inclusion of ER mechanism with the Langmuir-Hinshelwood (LH) mechanism, a second order phase transition is eliminated an
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Naseem, Khalida, Muhammad Zia Ur Rehman, Awais Ahmad, Deepak Dubal, and Tahani Saad AlGarni. "Plant Extract Induced Biogenic Preparation of Silver Nanoparticles and Their Potential as Catalyst for Degradation of Toxic Dyes." Coatings 10, no. 12 (2020): 1235. http://dx.doi.org/10.3390/coatings10121235.

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This study focusses on the synthesis of silver nanoparticles (Ag-nPs) by citrus fruit (Citrus paradisi) peel extract as reductant while using AgNO3 salt as source of silver ions. Successful preparation of biogenic CAg-nPs catalyst was confirmed by turning the colorless reaction mixture to light brown. The appearance of surface Plasmon resonance (SPR) band in UV-Vis spectra further assured the successful fabrication of nPs. Different techniques such as FTIR, TGA and DLS were adopted to characterize the CAg-nPs. CAg-nPs particles were found to excellent catalysts for reduction of Congo red (CR),
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Book chapters on the topic "Langmuir-Hinshelwood (LH)"

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Pascariu, Petronela, and Corneliu Cojocaru. "Innovative Materials Produced by the Electrospinning-Calcination Method for Advanced Oxidation." In Fundamental and Biomedical Aspects of Redox Processes. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-7198-2.ch011.

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Herein, the authors summarize the performance of the innovative semiconducting materials produced by the electrospinning-calcination method and applied in photocatalytic systems for advanced oxidation. Specific details regarding the synthesis, characterization, application, and mechanism of action of these semiconducting catalysts are highlighted. A special emphasis was placed on analyzing the kinetics of the processes related to advanced oxidation. In this regard, the application of the pseudo-first-order kinetic (PFO) model and the Langmuir-Hinshelwood (LH) model was presented and discussed.
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Conference papers on the topic "Langmuir-Hinshelwood (LH)"

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Basu, Sumit, Yuan Zheng, and Jay P. Gore. "Chemical Kinetics Parameter Estimation for Ammonia Borane Hydrolysis." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56139.

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Onboard hydrogen storage is an enabling factor in the development of fuel cell powered passenger cars. Ammonia borane (AB) hydrolysis is one of the potential technologies for onboard hydrogen storage. In this study, kinetics of catalyzed ammonia borane hydrolysis using ruthenium-supported-on-carbon has been measured. For reacting flows, chemical kinetics determines the rates of heat generation and species production or consumption in the overall energy and mass balances respectively. Kinetic measurements under isothermal conditions provide critical data for the design of hydrolysis reactors. I
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