Chemical reduction

The electrocatalytic conversion of carbon dioxide (CO2) into valuable chemicals presents a promising strategy for closing the carbon cycle. In this study, we synthesized zinc (Zn) catalysts through hydrothermal methods using either polyvinylpyrrolidone (PVP) or cetyltrimethylammonium bromide (CTAB) as stabilizing agents. These catalysts proved highly efficient in converting CO2 into carbon monoxide (CO).

9p visergeyne 18-06-2024 0 0   Download

Graphene aerogel (GA) was synthesized by chemical reduction of graphene oxide (GO) using ethylene diamine as a reducing agent, which was then followed by a freeze-drying process. In this work, we produced GA by hydrothermal process followed by freeze-drying. The produced adsorbent was then deployed to study the TC adsorption process.

8p viambani 18-06-2024 1 0   Download

Part 2 book "Parametric sensitivity in chemical systems" includes content: Runaway in fixed bed catalytic reactors, parametric sensitivity and ignition phenomena in combustion systems, sensitivity analysis in mechanistic study and model reduction, sensitivity analysis in air pollution, sensitivity analysis in metabolic processes.

173p dianmotminh03 17-06-2024 0 0   Download

Ebook "Thermal treatments of canned foods" describes the chemical features of canned food products and gives background information on the technology of canning foods. It explains how canned foods are different from other packaged foods, and illustrates and discusses their unique properties, including risks and failures. Canned foods are usually considered to offer a particularly long shelf-life and durability.

58p tracanhphuonghoa1007 22-04-2024 7 2   Download

Part 1 book "Principles of downstream techniques in biological and chemical processes" by arthor Mukesh Doble includes content: Downstream processing principles, economics and issues; importance of downstream in industrial processes – examples; size reduction, bacterial cell breakage and recovery of intracellular material; isolation of insolubles; product recovery.

139p muasambanhan10 03-04-2024 4 1   Download

Ebook "Creation of new metal nanoparticles and their hydrogen-storage and catalytic properties" reports the discovery of metal nanoparticles having new structures that do not exist in bulk state and that exhibit hydrogen storage ability or CO oxidation activity. Research into the reaction of hydrogen with metals has attracted much attention because of potential applications as effective hydrogen storage materials, as permeable films, or as catalysts for hydrogenation.

86p tudohanhtau1006 29-03-2024 3 1   Download

Ebook "Hydrolysis, oxidation and reduction (Catalysts for fine chemical synthesis, Volume 1)" to be a practical help for advanced undergraduate, graduate and postgraduate students, as well as experienced chemists in industry and academia working in organic and organometallic synthesis. The procedure section contains a wide variety of synthetic protocols, such as epoxidations of unsaturated ketones and esters, asymmetric reductions of carbon-oxygen double bonds, asymmetric hydrogenations of carbon-carbon double bonds and other types of reaction.

235p coduathanh1122 27-03-2024 5 1   Download

Part 1 book "Scale-up in chemical engineering" by Marko Zlokarnik includes contents: Introduction, dimensional analysis, generation of pi-sets by matrix transformation, scale invariance of the pi-space – the foundation of the scale-up, important tips concerning the compilation of the problem relevance list, important aspects concerning the scale up, preliminary summary of the scale up essentials, reduction of the pi space, typical problems and mistakes in the use of dimensional analysis.

102p muasambanhan09 16-03-2024 2 0   Download

Part 3 book "Perry’s chemical engineers’ handbook" includes content: Size reduction and size enlargement, handling of bulk solids and packaging of solids and liquids, alternative separation processes, chemical reactors, biochemical engineering, waste management, process safety, energy resources, conversion, and utilization, materials of construction, process machinery drives, analysis of plant performance.

917p muasambanhan09 12-03-2024 4 0   Download

Part 1 book "Efficiency and sustainability in the energy and chemical industries - Scientific principles and case studies" includes content: Introduction; thermodynamics revisited, energy “consumption” and lost work, entropy generation - cause and effect; reduction of lost work, exergy, a convenient concept; chemical exergy; simple applications; case studies; energy conversion; separations.

187p muasambanhan09 12-03-2024 4 1   Download

Part 1 book "Coulson and Richardson's chemical engineering (Vol 2: Particle technology and separation processes)" includes content: Particulate solids; particle size reduction and enlargement; motion of particles in a fluid; flow of fluids through granular beds and packed columns; sedimentation; fluidisation; liquid filtration; membrane separation processes; centrifugal separations; leaching; distillation.

320p muasambanhan09 12-03-2024 6 0   Download

Ebook "Analysis of kinetic reaction mechanisms" describes methods for the analysis of reaction mechanisms that are applicable in all these fields. Topics addressed include: how sensitivity and uncertainty analyses allow the calculation of the overall uncertainty of simulation results and the identification of the most important input parameters, the ways in which mechanisms can be reduced without losing important kinetic and dynamic detail, and the application of reduced models for more accurate engineering optimizations.

369p nhanphanguyet 28-01-2024 9 3   Download

"Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished" covers cold-finished carbon and alloy steel bars produced in straight length and coil to chemical compositions. Cold-finished bars are suitable for heat treatment, for machining into components, or for use in the as-finished condition as shafting, or in constructional applications, or for other similar purposes. Grades of steel are identified by grade numbers or by chemical composition.

7p hth_hn_vn 10-12-2023 5 5   Download

Due to its rising accumulation in the food chain and ongoing presence in ecosystems, metal contamination has piqued the curiosity of experts from all over the world. Environmentally hazardous heavy metal removal is being pursued utilizing a variety of techniques, such as ion exchange and precipitation, as well as chemical oxidation or reduction, electrochemistry, and filtration.

8p vimulcahy 18-09-2023 6 3   Download

Highly crystalline ZnO nanoparticles were synthesized using a co-precipitation method. The morphology and optical properties of these nanoparticles are found to be highly sensitive to the growth parameters such as the concentration of reducing agent and annealing temperature.

8p viberbers 09-08-2023 5 3   Download

Nanoparticles have been extensively in recent years. The effective applications of nanoparticles depend on their sizes. Copper nanoparticles (CuNPs) are among metal nanoparticles which have been reported by many researchers. In this work, CNPs have been synthesized from copper sulfate via chemical reduction method in the presence of trisodium citrate dispersant and polyvinylpyrrolidone (PVP) as protecting agents.

6p vidoctorstrange 06-05-2023 3 1   Download

The objectives of this study were to prove the control of the lake water quality in terms of turbidity, total suspended solid (TSS), chemical oxygen demand (COD), and number of the algal cells by using the Riplox-based chemical complex (including (Ca(NO3)2) and (FeCl3) at concentrations ranging from 5 mM to 50 mM, with the presence of CuSO4 4 mg/L), considering the effects of the chemical fraction, the chemical concentration, and the treatment time.

8p vimalfoy 08-02-2023 3 2   Download

Due to the heterogeneous and isomeric nature of glycans, the development of an advanced separation of distinct glycan isomers is essential for glycan research and application. In this study, we utilized porous graphite carbon (PGC) chromatography for the separation of isomeric oligosaccharides without reduction or chemical derivatization at 190 °C in a custom-built heating oven.

12p viginny 23-12-2022 10 3   Download

Small polyethylene glycol (PEG) molecules were grafted on ceramic γ-alumina membranes, by making use of organo-alkoxysilanes or organo-phosphonic acids as linking groups. It was proven by FTIR that the short PEG brushes are chemically grafted into the pores of a 5 nm γ-alumina mesoporous support, which results in a decrease of the pore diameter as measured by cyclohexane permporometry (reduction of 2.1 nm).

8p vironald 15-12-2022 8 2   Download

The Six-Transmembrane Epithelial Antigen of the Prostate 1 (STEAP1) is an integral membrane protein involved in cellular communications, in the stimulation of cell proliferation by increasing Reactive Oxygen Species levels, and in the transmembrane-electron transport and reduction of extracellular metal-ion complexes.

11p vironald 15-12-2022 7 2   Download