Results 1 to 10 of about 588,268 (266)

One-Step Synthesis of a Non-Precious-Metal Tris (Fe/N/F)-Doped Carbon Catalyst for Oxygen Reduction Reactions

open access: yesMolecules, 2023
Advancements in inexpensive, efficient, and durable oxygen reduction catalysts is important for maintaining the sustainable development of fuel cells.
Huitian Yang   +12 more
doaj   +1 more source

Analysis of development situation and patent technology of catalyst wastewater treatment

open access: yesChinese Journal of Population, Resources and Environment, 2022
The development situation and patent technology of Catalyst Wastewater Treatment are analyzed. Catalysts have a wide range of applications in industrial productions.
Jingjun Shi, Junchao Hu
doaj   +1 more source

Graphene-Modified Co-B-P Catalysts for Hydrogen Generation from Sodium Borohydride Hydrolysis

open access: yesNanomaterials, 2022
Sodium borohydride (NaBH4) is considered a good candidate for hydrogen generation from hydrolysis because of its high hydrogen storage capacity (10.8 wt%) and environmentally friendly hydrolysis products. However, due to its sluggish hydrogen generation (
Xinlei Jia   +10 more
doaj   +1 more source

Solar Energy Conversion and Electron Storage by a Cu2O/CuO Photocapacitive Electrode

open access: yesEnergies, 2023
Solar conversion devices are generally connected with energy storage systems to overcome the influence of sunlight variability. Developing an integrated solar energy conversion and storage device is an attractive approach to compensate for the energy ...
Huangjun Xue   +8 more
doaj   +1 more source

Direct Observation of the Deformation Mechanism of Twin-Structured Ni NWs under Bending Strain

open access: yesMetals, 2022
In situ atomic-scale bending tests of twin-structured Ni nanowires were realised using a homemade deformation device. The results showed that the plastic deformation mechanism in twin-structured Ni nanowires depended on the deformation stage.
Zihao Zhang   +7 more
doaj   +1 more source

Material properties and osteoporosis [PDF]

open access: yesF1000Research, 2019
The main clinical tool for the diagnosis and treatment of skeletal diseases such as osteoporosis is the determination of bone mineral density by dual x-ray absorptiometry. Although this outcome contributes to the determination of bone strength, the clinical evidence to date suggests that it does not correlate strongly with fracture incidence.
Eleftherios P. Paschalis   +2 more
openaire   +2 more sources

IDENTIFICATION OF MATERIAL PROPERTIES OF COMPOSITE MATERIALS [PDF]

open access: yesAviation, 2009
Present paper describes the facilities of composite material properties identification technique using specimen vibration tests, genetic algorithms, finite elements analysis and specimen shape optimization. In identification process the elastic constants in a numerical model is updated so that the output from the numerical code fits the results from ...
Ragauskas, Paulius   +1 more
openaire   +2 more sources

NiFe2O4-Coated Activated Carbon Composite as a Cathode Material for Lithium–Sulfur Batteries

open access: yesInternational Journal of Electrochemical Science, 2020
Lithium–sulfur batteries are promising as next-generation rechargeable energy-storage devices because of their high energy density, low cost, and environmental friendliness.
Riguang Cheng   +10 more
doaj   +1 more source

Nickel-organic Frameworks with Hierarchical Flowers Structure Fabricated by Surfactant-assisted Solvothermal Method for High-performance Supercapacitors

open access: yesInternational Journal of Electrochemical Science, 2021
In this work, Ni-MOF (R-160) with a hierarchical flower-like structure is fabricated by a facile solvothermal method with surfactant assistance. Benefiting from its structure, R-160 has a very high specific surface area and a large number of exposed ...
Yi Wu   +14 more
doaj   +1 more source

Catalytic Hydrogen Evolution of NaBH4 Hydrolysis by Cobalt Nanoparticles Supported on Bagasse-Derived Porous Carbon

open access: yesNanomaterials, 2021
As a promising hydrogen storage material, sodium borohydride (NaBH4) exhibits superior stability in alkaline solutions and delivers 10.8 wt.% theoretical hydrogen storage capacity.
Yiting Bu   +14 more
doaj   +1 more source

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