Results 131 to 140 of about 1,726,523 (310)

Molecular Dynamics Study of the Catalyst Particle Size Dependence on Carbon Nanotube Growth

open access: yes, 2004
The molecular dynamics method, based on an empirical potential energy surface, was used to study the effect of catalyst particle size on the growth mechanism and structure of single-walled carbon nanotubes (SWNTs). The temperature for nanotube nucleation
Arne Rosén   +34 more
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Soybean Oil Transesterification Reactions in the Presence of Mussel Shell: Pseudo-First Order Kinetics [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2018
Calcium oxide is one of the appropriate catalysts for biodiesel production. In this study, cheap and compatible with environment catalyst has been used.
Majid Mohadesi   +3 more
doaj  

Effect of Catalyst in Volume Percent Yield Biodiesel From Stearin by Transesterification Process [PDF]

open access: yes, 2011
Use of fuel oil is increasingly high, but the problem is not in line with the production of fuel oil which is increasingly lower, so to anticipate and meet the fuel needs of the growing diesel engine, it requires a search and research on alternative ...
Erlinawati, M.T, Ir
core   +1 more source

Importance of carbon solubility and wetting properties of nickel nanoparticles for single wall nanotube growth

open access: yes, 2012
Optimized growth of Single Wall Carbon Nanotubes requires a full knowledge of the actual state of the catalyst nanoparticle and its interface with the tube.
A. Zappelli   +5 more
core   +4 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Liquid-Assisted Vapor–Solid–Solid Silicon Nanowire Growth Mechanism Revealed by In Situ TEM When Using Cu–Sn Bimetallic Catalysts

open access: green, 2021
E. Ngo   +6 more
openalex   +2 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

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