Results 71 to 80 of about 71,221 (317)

Thermal Methanol Synthesis from CO2 Using Cu/ZnO Catalysts: Insights from First‐Principles Calculations

open access: yesSmall Structures
Catalytic hydrogenation of carbon dioxide to methanol offers a promising avenue for recycling CO2, enhancing environmental sustainability. Cu/ZnO has long been identified as one of the most effective heterogeneous catalysts for this reaction, yet the ...
Cong Xi   +5 more
doaj   +1 more source

Optimization of Preparation Program for Biomass Based Porous Active Carbon by Response Surface Methodology Based on Adsorptive Property

open access: yesCailiao gongcheng, 2017
With waste walnut shell as raw material, biomass based porous active carbon was made by microwave oven method. The effects of microwave power, activation time and mass fraction of phosphoric acid on adsorptive property of biomass based porous active ...
ZHANG Hao   +3 more
doaj   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

Nitrogen Doping of Porous Carbon Electrodes Derived from Pine Nut Shell for High-Performance Supercapacitors

open access: yesInternational Journal of Electrochemical Science, 2020
Porous carbon materials are one of the most widely studied electrode materials in supercapacitor electrode materials. Many studies have shown that increasing the specific surface area of porous carbon materials, increasing the pore structure, and hetero ...
Jinghua Li   +7 more
doaj   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

The Mechanical Effect of MnO2 Layers on Electrochemical Actuation Performance of Nanoporous Gold

open access: yesNanomaterials, 2020
This study investigated the electrochemical actuation behavior of nanoporous material during the capacitive process. The length change of nanoporous gold (npg) was in situ investigated in a liquid environment using the dilatometry technique.
Zhifei Han   +4 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Fabrication of porous carbon structures for biological fuel cells

open access: yes, 2010
PhDBiofuel cells demand three-dimensional, “high” surface area electrodes with “high” electrical conductivity and structural integrity. The aim of this project is to design and fabricate porous carbon structures as electrodes for enzyme and microbe
Amini, Negar
core  

Preparation of Carboxymethyl Chitosan based Porous carbon with CuO loading [PDF]

open access: yesE3S Web of Conferences
Because of the excessive carbon dioxide emissions, the greenhouse environmental problem has become a widely research hot. Porous carbon with plentiful of 3D porous stricture and excellent electrochemical performance has attracted more and more attention.
Xu Yuelong, Wang Shasha
doaj   +1 more source

Porous Carbon Electrodes

open access: yesTransactions of The Electrochemical Society, 1939
Various applications of porous electrodes are described and their usefulness in electro‐oxidations and reductions, both organic and inorganic, is discussed. Three processes are considered in detail : electrowinning of copper, production of p‐nitraniline, and oxidation of arsenite to arsenate with accessory air depolarization at the cathode.
openaire   +1 more source

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