A5063973937- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Nanomaterials for catalytic reactions
- Zeolite Catalysis and Synthesis
- Layered Double Hydroxides Synthesis and Applications
- Hydrogen Storage and Materials
- Catalysis for Biomass Conversion
- Ammonia Synthesis and Nitrogen Reduction
- Electrocatalysts for Energy Conversion
- Thermal and Kinetic Analysis
- Hybrid Renewable Energy Systems
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Mesoporous Materials and Catalysis
- Asymmetric Hydrogenation and Catalysis
- Advanced materials and composites
- Microwave-Assisted Synthesis and Applications
- Inorganic and Organometallic Chemistry
- Carbon dioxide utilization in catalysis
- Heat transfer and supercritical fluids
- Municipal Solid Waste Management
- Metal-Organic Frameworks: Synthesis and Applications
- Chemical Looping and Thermochemical Processes
University of Oxford
2015-2024
State Key Laboratory of Chemical Engineering
2020
Tianjin University
2020
Oxfam
2018
King Abdulaziz City for Science and Technology
2015-2018
Science Oxford
2015
University of the Andes
1998-2014
Universidad de Los Andes
2006-2012
University of Oklahoma
2006-2007
University of St Andrews
2004
Abstract With mounting concerns over climate change, the utilisation or conversion of carbon dioxide into sustainable, synthetic hydrocarbons fuels, most notably for transportation purposes, continues to attract worldwide interest. This is particularly true in search sustainable renewable aviation fuels. These offer considerable potential since, instead consuming fossil crude oil, fuels are produced from using hydrogen and energy. We report here a protocol fixation by converting it directly...
Light olefins are unsaturated hydrocarbons with at least one carbon–carbon double bond. They include ethene (or ethylene) propene propylene), and butene. Ethylene propylene, sometimes called the king crown of chemicals, critical building blocks in petrochemical industry. Concerns about sustainable development climate change have prompted chemical manufacturers to start seeking renewable feedstocks. Since oil reserves finite high demand, it is essential look for an alternative route,...
Microwave-stimulated catalytic dehydrogenation of fossil hydrocarbon fuels allows for the rapid production and safe storage hydrogen.
Nitrogen deficient and protonated g-C<sub>3</sub>N<sub>4</sub> was fabricated by the conjoint protocol utilizing NH<sub>4</sub>Cl as gas template H<sub>3</sub>PO<sub>2</sub> doping agent, leading to enhanced visible-light harvesting charge carrier separation achieve efficient H<sub>2</sub> evolution.
Abstract Hydrogen as an energy carrier promises a sustainable revolution. However, one of the greatest challenges for any future hydrogen economy is necessity large scale production not involving concurrent CO 2 production. The high intrinsic content liquid‐range alkane hydrocarbons (including diesel) offers potential route to ‐free through their catalytic deep dehydrogenation. We report here means rapidly liberating high‐purity by microwave‐promoted dehydrogenation liquid alkanes using Fe...
Coking leads to the deactivation of solid acid catalyst. This phenomenon is a ubiquitous problem in modern petrochemical and energy transformation industries. Here, we show method based on microwave cavity perturbation analysis for an effective examination both amount chemical composition cokes formed over zeolite catalysts. The employed can rapidly non-intrusively measure catalytically coked zeolites with sample full body penetration. overall coke reflected by obtained dielectric loss (ε″)...
Abstract The thermodynamics of jet fuel range alkane synthesis from carbon dioxide and hydrogen has been investigated. hydrocarbon process is divided into three elementary steps, including light olefins formation (C 2 ‐C 6 ) hydrogenation CO , α‐olefins 7 16 oligomerization olefins, 8 to straight‐chain paraffin ). enthalpy changes Gibbs free energy the relevant reactions were calculated, equilibrium products distribution was computed based on minimization method. calculation results show...
Hydrogen is often described as the fuel of future, especially for application in hydrogen powered fuel-cell vehicles (HFCV's). However, its widespread implementation this role has been thwarted by lack a lightweight, safe, on-board storage material. Here we show that benign, readily-available hydrocarbon wax capable rapidly releasing large amounts through microwave-assisted catalytic decomposition. This discovery offers new material and system safe efficient could facilitate HFCV....
In the present work, effect of citric acid (i.e., adsorption-assisting agent) and thermal treatment over acid-synthesized CoMo catalyst precursors were investigated. The catalysts prepared by wet co-impregnation γ-alumina extrude with acid-containing aqueous solution in medium (pH = 2–3) treated at various temperatures (typically between 110 400 °C) an air atmosphere. γ-alumina-supported sulfide evaluated using two different feeds (a model feedstock containing S N compounds (hereafter feed...
Abstract Hydrotalcite catalysts derived from NiAl and NiAlMg mixed oxides were successfully prepared by coprecipitation at a constant pH of 11. Physicochemical methods investigated to determine their structural textural properties. Using isopropanol as probe molecule, the acid–base properties investigated, evaluation reactivity, selectivity lifetime was established.
The dehydrogenation of C<sub>3</sub>H<sub>8</sub> in the presence CO<sub>2</sub> is an attractive catalytic route for C<sub>3</sub>H<sub>6</sub> production. In studying various possibilities to utilise convert hydrocarbons using sustainable energy source solar thermal energy, thermodynamic calculations were carried out CO<sub>2</sub>for process operating temperature range 300–500 °C. Importantly, results highlight enhanced potential as compared its lighter and heavier homologues...