Results 31 to 40 of about 2,599,064 (292)

Preparation of cementitious materials from biomass power plant ash and the application of cementitious materials in backfill material

Meitan kexue jishu
The backfill technology using paste-like materials boasts advantages of excellent fluidity and high strength, ensuring long-distance transportation and pressure-bearing capacity, thereby facilitating its rapid development in the coal mining industry ...
Keji LI, Tingye QI, Guorui FENG, Haochen WANG, Linfei WANG, Junjie HE, Siyuan CHENG, Tian QIU   +7 more
doaj   +1 more source

Kinetic and Thermodynamic Studies for Zeolites Synthesis

Zanco Journal of Pure and Applied Sciences, 2019
Zeolites are compounds which have many applications in chemistry and industry; therefore, studies of synthesis of zeolites are of great importance.
Rawand S. Abdullah, Mazin A. Othman, Sangar S. Ahmed, Kafia M. Surchi   +3 more
doaj   +1 more source

Dimensionality‐Driven Interfacial Electronic Coupling in Carbon‐Supported Gd‐CuO Catalysts for Selective CO2 Electroreduction to Ethylene

Advanced Functional Materials, EarlyView.
The 2D carbon‐supported Gd–CuO exhibits strong interfacial electronic coupling, abundant oxygen vacancies, and highly exposed active sites, enabling efficient CO enrichment and C─C coupling toward selective and durable CO2‐to‐C2H4 conversion. ABSTRACT Copper‐based catalysts are promising for electrochemical CO2 reduction toward value‐added chemicals ...
Xueya Zhu, Binghao Shen, Mengshan Chen, Yue Hu, Ruijie Xia, Senwei Ji, Zhi Teng, Donglin Xie, Shunli Li, Xue Zhao, Hermenegildo Garciad, Yingtang Zhou   +11 more
wiley   +1 more source

Effect of the synthesis variables of TiO2 on the photocatalytic activity towards the degradation of water pollutants

Revista Facultad de Ingeniería Universidad de Antioquia, 2013
In this work, TiO2 photocatalysts were synthesized using a conventional sol-gel and hydrothermal synthesis methods with steam pressure treatment. Photocatalysts were characterized by X-ray diffraction (XRD), diffuse reflectance spectra (DRS) and N2 ...
Camilo Andrés Castro López, Sonia Esperanza Reyes Gómez, Aristóbulo Centeno Hurtado, Sonia Azucena Giraldo Duarte   +3 more
doaj   +1 more source

Characterization of ZnAl2O4 Spinel Obtained by Hydrothermal and Microwave Assisted Combustion Method: A Comparative Study [PDF]

Materials Research, 2017
In this work, zinc aluminate spinel was prepared by two methods of directly synthesis (without calcination): microwave assisted combustion and hydrothermal method. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (
Heloísa Pimenta de Macedo, Rodolfo Luíz Bezerra de Araújo Medeiros, Amanda Lucena de Medeiros, Ângelo Anderson Silva de Oliveira, Gilvan Pereira de Figueredo, Marcus Antônio de Freitas Melo, Dulce Maria de Araújo Melo   +6 more
doaj   +2 more sources

Geochemical and Visual Indicators of Hydrothermal Fluid Flow through a Sediment-Hosted Volcanic Ridge in the Central Bransfield Basin (Antarctica) [PDF]

, 2013
In the austral summer of 2011 we undertook an investigation of three volcanic highs in the Central Bransfield Basin, Antarctica, in search of hydrothermal activity and associated fauna to assess changes since previous surveys and to evaluate the extent ...
Aquilina Alfred, Alfred Aquilina, Huvenne, Veerle A.I., Hepburn, Laura E., Hawkes Jeffrey A., Copley, Jon T., Hawkes, Jeffrey A., Mills Rachel A., Leigh Marsh, Paul A Tyler, Veerle A I Huvenne, Mills, Rachel A., Rachel A Mills, Tyler Paul A., Connelly, Douglas P., Marsh, Leigh, Hepburn Laura E., Tyler, Paul A., Douglas P Connelly, Darryl R H Green, Jeffrey A Hawkes, Green, Darryl R.H., Jon T Copley, Copley Jon T., Huvenne Veerle A. I., Connelly Douglas P., Green Darryl R. H., Marsh Leigh, Laura E Hepburn, Aquilina, Alfred   +29 more
core   +2 more sources

From Bulk to Colloidal Nanocrystals: Top‐Down Synthesis of Highly Luminescent Cs2ZrCl6:Te4+ Double Perovskite Nanocrystals for X‐Ray Imaging

Advanced Functional Materials, EarlyView.
Top‐down ultrasonication produces highly emissive Cs2ZrCl6:Te4+ nanocrystals (NCs) with a PLQY of 65%, which is higher compared to that of the NCs synthesized by typical bottom‐up hot‐injection synthesis. The colloidal Cs2ZrCl6:Te4+ NCs have been found to be potential candidates for x‐ray scintillation imaging.
Yang Liu, Ye Wu, Hongpeng Liu, Cong Cui, Iago López‐Fernández, Nadesh Fiuza‐Maneiro, Sergio Gómez‐Graña, Yingjun Chai, Zhicheng Wang, Yusheng Wu, Laishi Li, Xiaoming Li, Lakshminarayana Polavarapu   +12 more
wiley   +1 more source

Research on the effects of hydrothermal synthesis conditions on the crystal habit of MIL-121 [PDF]

Royal Society Open Science, 2020
The investigation of the influence of hydrothermal synthesis conditions such as synthetic temperature, the amount of solvent, addition of additives including sodium hydroxide, lithium chloride and 2-methylimidazole on the morphology and size of MIL-121 ...
Fei Wang, Liang Zhu, Qingyan Wei, Yanfei Wang   +3 more
doaj   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

Advanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio, Jonas Elsborg, Elif Coşkun, Andreas Burger, Pradipkumar Manubhai Leuaa, Thu Pham Anh Phan, Jin Hyun Chang, Christodoulos Chatzichristodoulou   +7 more
wiley   +1 more source

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

Advanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee, Geumha Lim, Wookyung Jeon, Seongju Park, Jinwoo Chu, Yohan Yoon, William Jo, Byungha Shin   +7 more
wiley   +1 more source