Results 121 to 130 of about 309,791 (349)

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

open access: yesAdvanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He   +8 more
wiley   +1 more source

Adisi Fe2O3 danSiCPada Material MgH2 untuk Aplikasi Tangki Penyimpanan Hidrogen Kendaraan Fuel Cell [PDF]

open access: yes, 2012
The preliminary studies on MgH2 as hydrogen storage material by inserting dual catalysts, iron oxide and silicon carbide (5wt% Fe2O3 and SiC), has been done. The sample was prepared using reactive ball milling technique for 10 hours.
, Fauzi   +3 more
core  

Effect of grain refinement on enhancing critical current density and upper critical field in undoped MgB2 ex-situ tapes

open access: yes, 2008
Ex-situ Powder-In-Tube MgB2 tapes prepared with ball-milled, undoped powders showed a strong enhancement of the irreversibility field H*, the upper critical field Hc2 and the critical current density Jc(H) together with the suppression of the anisotropy ...
Bernini, C.   +11 more
core   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro   +8 more
wiley   +1 more source

Exploration of Quantum Chemistry Methods to Explain Mechanism of Mechanochemical Degradation of Typical Organic Pollutants

open access: yesToxics
The high-efficiency ball milling treatment technology primarily combines the excitation of oxidation processes with high-speed physical collisions, thereby promoting the reaction processes and enhancing the degradation effectiveness of materials.
Xiaohui Zhang   +4 more
doaj   +1 more source

Investigation on the reaction between MgO–CaO–CaF2 and Al–C powders to extract magnesium under atmospheric pressure

open access: yesJournal of Magnesium and Alloys, 2019
In order to utilize the carbon resource, a novel process was developed to extract magnesium from magnesia by the reaction between MgOCaOCaF2 and Al-C powders reinforced using mechanical activation technique under atmospheric pressure at 1223 K (950 °C).
Teng Zhang
doaj   +1 more source

Ti6Al4V‐Bioglass‐Copper Composites for Load‐Bearing Implants

open access: yesAdvanced Healthcare Materials, EarlyView.
We have designed and manufactured a novel Ti64‐based composite by adding 45S5 bioglass (BG) and copper (Cu). Adding BG on titanium improves wear resistance and biocompatibility, whereas Cu addition improves mechanical strength while providing inherent lifelong bacterial resistance.
Lochan Upadhayay   +3 more
wiley   +1 more source

Phase Transformation of Silicon and Silica During Ball Milling

open access: yesJournal of Advanced Materials in Engineering, 2010
In the present study phase transformation of silicon and silica during milling in different atmospheres was investigated. The silicon powder was subjected to high energy ball milling in ammonia (25%) atmosphere.
M. Babashahi   +3 more
doaj  

Improving Anaerobic Digestion Efficiency of Animal Manure Through Ball Milling Pretreatment

open access: yesAgronomy
Anaerobic digestion (AD) can offer a promising pathway for converting animal waste into biogas. This process improves waste management practices while generating renewable energy.
Meicai Xu   +3 more
doaj   +1 more source

Performance Study of Graphite Anode Slurry in Lithium-ion Flow Battery by Ball Milling

open access: yesCailiao gongcheng, 2018
Graphite anode slurry of lithium-ion flow battery was prepared by the method of ball milling. The morphology, conductivity, specific capacity and cycle performance of graphite anode slurry were studied. Results show that the addition of conductive carbon
FENG Cai-mei   +4 more
doaj   +1 more source

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