Results 81 to 90 of about 20,918 (303)
Тонкие химические технологииObjectives. The work set out to investigate the potential for developing an efficient cobalt catalyst for Fischer–Tropsch synthesis through low-temperature activation by reduction in hydrogen directly in the synthesis reactor.
I. G. Solomonik +2 more
doaj +1 more source
Separation medium containing thermally exfoliated graphite oxide [PDF]
, 2012 A separation medium, such as a chromatography filling or packing, containing a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m.sup.2/g to 2600 m.sup.2/g, wherein the thermally ...
Aksay, Ilhan A. +2 more
core +1 more source
Cold storage condensation heat recovery system with a novel composite phase change material [PDF]
, 2016 © 2016 Elsevier Ltd. Using condensation heat from cold storage refrigeration systems to provide heat for domestic hot water preparation and industrial hot water supply promotes energy conservation.
Cao, Xiaoling +4 more
core +2 more sources
Advanced Functional Materials, EarlyView.Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler +10 more
wiley +1 more source
Preparation of high purity thermoexfoliated graphite by electrochemical method
Хімія, фізика та технологія поверхніCarbon materials with a graphite-like structure have the highest thermal stability in a non-oxidizing environment, sufficient structural strength, are easily processed, etc., and therefore they are widely used in various fields of technology.
Yu. V. Hrebelna +9 more
doaj +1 more source
Peculiarities of ultra-sound dispersion of thermally expanded graphite
Butlerov Communications, 2019 Thermally expanded graphite (TEG) is one of the best precursors for receiving of plane nano-dimensional particles. Crucible graphite of Taigin deposit was used as a basic material to receive TEG. It is established that repeated thermo-chemical, as well as additional mechanical TEG dispersion does not lead to formation of nano-dimensional graphite ...
Nadezhda V. Pykhova +3 more
openaire +1 more source
Cu-Expanded Graphite Composite Material Preparation and Thermal Properties
Eurasian Chemico-Technological Journal, 2017 A composite material based on expanded graphite (EG) and copper compounds was obtained by natural graphite oxidation with 95% nitric acid, copper (II) nitrate and granular carbamide addition with further rapid heat treatment at three different exfoliation temperatures: 800, 1000 and 1200 °С.
I. M. Karzov +4 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song +3 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou +8 more
wiley +1 more source
Comparative Study of Graphite Exfoliation Techniques Using Nafion as a Surfactant
CThis work presents a comparative study of graphene exfoliation technologies from various graphite precursors—spectral graphite and thermally expanded graphite (Graflex)—using ultrasonic treatment and electrochemical methods in the presence of the ionic ...
Anna O. Krasnova +9 more
doaj +1 more source