Results 111 to 120 of about 117,880 (312)

Model arenes hydrogenation with silica-supported rhodium nanoparticles:The role of the silica grains and of the solvent on catalytic activities [PDF]

open access: yes, 2009
Silica-supported rhodium-based nanoheterogeneous catalysts were easily prepared by impregnation with a pre-stabilized colloidal suspension. The resulting catalysts contain rhodium nanoparticles well-dispersed in the silica pores with a mean size of 5 nm.
Barthe, Laurie   +5 more
core   +4 more sources

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

PIM moulding of post consumer mixed plastics [PDF]

open access: yes, 2009
Post consumer plastics from household are highly mixed and contaminated and are thus particularly difficult to recycle. Although advances in sorting and cleaning technologies for waste plastics have enable the relatively pure and clean streams such as ...
Qi, K, Song, J, Tarverdi, K
core  

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Recovery Of Electrodic Powder From Spent Nickel-Metal Hydride Batteries (NiMH)

open access: yesArchives of Metallurgy and Materials, 2015
This study was focused on recycling process newly proposed to recover electrodic powder enriched in nickel (Ni) and rare earth elements (La and Ce) from spent nickel-metal hydride batteries (NiMH).
Shin S.M.   +4 more
doaj   +1 more source

Preparation and Characterization of Lime Activated Unfired Bricks Made with Industrial Wastes [PDF]

open access: yes, 2013
Utilization of fly ash can reduces the solid waste disposal problem and minimization of pollution also. Conventional production of bricks usually utilizes clay and shale as the source material and requires high temperature (900– 1000 °C) kiln firing ...

core  

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Characteristics of Ti6Al4V Powders Recycled from Turnings via the HDH Technique

open access: yesMetals, 2018
The objective of this research is for Ti6Al4V alloy turnings, generated during the machining of implants, to produce powders for the fabrication of Ti base coating via the cold spray method. In order to decrease the cost of powder production and increase
Mertol Gökelma   +4 more
doaj   +1 more source

Valorization of recycled concrete powder, clay brick powder, and volcanic pumice powder in sustainable geopolymer concrete

open access: yesScientific Reports
Abstract The use of recycled powder as a binder in geopolymer concrete (GPC) represents a promising approach to reducing construction waste and promoting the production of sustainable materials. This study examines the impact of recycled concrete powder (RCP), clay brick powder (CBP), and volcanic pumice powder (VPP) on the mechanical ...
Ahmed M. Tahwia   +3 more
openaire   +3 more sources

Numerical analysis of wet separation of particles by density differences

open access: yes, 2016
Wet particle separation is widely used in mineral processing and plastic recycling to separate mixtures of particulate materials into further usable fractions due to density differences.
Kruggel-Emden, Harald   +1 more
core   +1 more source

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