Results 61 to 70 of about 3,128,811 (214)

Pyrolytic synthesis of graphene-encapsulated zero-valent iron nanoparticles supported on biochar for heavy metal removal

Biochar, 2022
Highlights BC-G@Fe0 nanocomposite  was produced through two carbothermal reduction routes. The biomass impregnating-carbonizing route produced graphene-encapsulated iron carbide (Fe3C) nanoparticles.
Tharindu N. Karunaratne, R. M. Oshani Nayanathara, Chanaka M. Navarathna, Prashan M. Rodrigo, Rooban V. K. G. Thirumalai, Charles U. Pittman, Yunsang Kim, Todd Mlsna, Jilei Zhang, Xuefeng Zhang   +9 more
doaj   +1 more source

Sustainable Revival of Spent Lithium Iron Phosphate Cathodes in Li‐Ion Batteries: Recycling and Surface Engineering Approaches

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Schematic illustration of the lifecycle of LiFePO4 cathodes. Lithiation and delithiation reactions happen through its discharging and charging processes. Recycling pathways including hydrometallurgy, pyrometallurgy, and direct regeneration enable sustainable reuse of spent LFP materials. Surface modification approaches (carbon, polymer, and metal/metal
Yan He, Ruigang Wang
wiley   +1 more source

Volatilization of MgO from Ludwigite in Carbothermal Reduction-Nitridation Process

, 2011
Based on thermodynamic analysis, the reduction and volatilization of magnesium in ludwigite were studied using carbothermal reduction-nitridation method.
Xing Juan Wang, Xiang Xin Xue, Ran Liu, Yong Liang Gao, Qing Lu   +4 more
core   +1 more source

The Carbothermal Reduction of Silica with Y2O3-MgO Powders [PDF]

, 2017
The aim of this study is to examine the effect of MgO and Y2O3 to the carbothermal reduction and nitridation of silica. The synthetic silica, MgO and Y2O3 powders were premixed (4wt% MgO-6% Y2O3, 5% MgO-5% Y2O3 and 6% MgO-4% Y2O3) in the starting ...
Canikoğlu, Nuray, Canikoğlu, N., N. Canikoğlu   +2 more
core   +1 more source

Flexible lithium‐ion batteries: Materials design, interfacial regulation, and strain‐adaptive device architectures

FlexMat, EarlyView.
This review highlights recent advances in flexible lithium‐ion batteries for wearable and deformable electronics. It systematically examines deformable electrodes, mechanically compliant gel and solid‐state electrolytes, and strain‐adaptive cell architectures, alongside an analysis of mechano‐electrochemical coupling under dynamic deformation.
Yichun Wang, Chaozhu Huang, Maokun Li, Rui Luo, Wenshi Zeng, Yongbiao Mu, Lin Zeng   +6 more
wiley   +1 more source

Optimization of medium–low-grade phosphorus rock carbothermal reduction process by response surface methodology

Green Processing and Synthesis, 2020
Phosphorus extraction from phosphorus rock was conducted by carbothermal reduction with silica and coke. The effects of reaction temperature, reaction time, coke excess coefficient, molar ratio of silicon–calcium, and phosphorus rock particle size on the
Luo Biwei, Li Pengfei, Li Yan, He Pengpeng, Ji Jun, He Dongsheng, Tian Qifeng   +6 more
doaj   +1 more source

THE CARBOTHERMIC REDUCTION OF URANIUM OXIDE

, 1957
Uranium oxide has been reduced by carbon under vacuum at 225O deg C, to yield a product consisting of dendritic uranium carbide in a matrix of uranium. Uranium sponge is obtained from this cermet by hydrolyzr-ng the interconnected UC. This is followed by pickling in dilute nitric acid to remove the residual hydrolysis product UO/sub 2/ x H/sub 2/O from
R Powers, O Blaber, C Whitman, R Holden
openaire   +2 more sources

Kinetics of carbothermic reduction of synthetic chromite

Journal of Mining and Metallurgy, Section B: Metallurgy, 2014
In order to optimize the current reduction process of chromite, a good knowledge of reduction mechanism involved is required. The basic component in chromite ore is FeCr2O4, thus, kinetic investigation of synthetic FeCr2O4 with different amount of carbon were carried out in the temperature range of 1473K to 1673K under both isothermal and ...
Wang Y., Wang L., Yu J., Chou K.C.
openaire   +2 more sources

Cross‐Scale Engineering of Single‐Atom Catalysts from Local Planar Coordination to Spatial Architectures

Small, EarlyView.
This Review presents a cross‐scale framework for single‐atom catalysts, spanning in‐plane and out‐of‐plane coordination; primary coordination, secondary‐sphere interactions, through‐space microenvironments and support interfaces; individual sites and macroscopic architectures; and static design and directed dynamic reconstruction.
Dazhi Yao, Siheng Yang, Shuhao Wang, Bernt Johannessen, Cheng Tang   +4 more
wiley   +1 more source

Electrochemical and Biological Evaluation of Patterned TiO2@TiC‐Nanowires for Bio‐Interface Electrode

Small, EarlyView.
This study introduces a room‐temperature process to fabricate patterned TiO2@TiC core–shell nanowires, merging the biocompatibility of TiO2‐NWs with the high conductivity of TiC. Through sputtering pressure and time modulation, the nanowires morphology and electrochemical properties are tuned, enabling enhanced capacitance, stability, and guided ...
Roaa Sait, Shofarul Wustoni, Nabeel Aslam, Camelia Florica, Andrea Diaz‐Gaxiola, Valentina‐Elena Musteata, Mohammed K. Drad, Stephen Ghandour, Georgian Melinte, Yaping Zhang, Mohammed Nejib Hedhili, Ahad Ali Syed, Menouer Saidani, Shahryar Khattak, Imed Eddine‐Gallouzi, Sahika Inal, Hala Aljawhari   +16 more
wiley   +1 more source