Results 61 to 70 of about 4,357,340 (293)

Effects of Activator Properties and Curing Conditions on Alkali-Activation of Low-Alumina Mine Tailings

Waste and Biomass Valorization, 2019
The mining industry generates a notable amount of mine tailings (MTs). Disposal of MTs creates environmental impacts such as air pollution and the release of heavy metals into surface and underground water.
M. Falah, Robert Obenaus-Emler, P. Kinnunen, M. Illikainen   +3 more
semanticscholar   +1 more source

Mineral Deposition From Liquid Precursors Triggered by Complementary Polyelectrolytes

Advanced Functional Materials, EarlyView.
Polyelectrolyte additives can delay or prevent crystal nucleation in supersaturated solutions of insoluble mineral salts such as calcium carbonate. This work reports that adding a second, oppositely‐charged polyelectrolyte leads to immediate mineral crystallization from such metastable solutions.
Mohammed Kayes Patoary, Eli Halperin Pierce, Elizabeth Siu, Brigitte Gallagher, Md Abul Shahid, Yang Zhang, Thomas B. H. Schroeder   +6 more
wiley   +1 more source

Visualizing alkali metal aggregation-induced coordination in CO2 activation on copper

Nature Communications
Alkali metals are widely recognized as promotors in CO2 activation and conversion. However, how the alkali metals activate CO2 molecules and stabilize the reaction intermediates remains controversial due to the lack of atomic-scale characterization. Here,
Wenyu Sun, Pu Yang, Yongkang Jiang, Jingwei Zhang, Hongrun Zhang, Qingwei Jin, Chen Zhang, Zihao Zhang, Haifeng Feng, Yi Du, Zhichang Wang, Duanyun Cao, Feng Wu, Ying Jiang, Jing Guo   +14 more
doaj   +1 more source

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

Advanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang, Henry Robert Howard, Shihui Chen, Won‐Young Choi, Summer Cao, Arthur Chien, Kevin Zou, Michael Kassiou, Fabien Delerue, Ho Sang Jung, Yeonju Park, Young Mee Jung, Yong‐Dae Kwon, Karrie M. Kiang, Gilberto Ka‐Kit Leung, Ryohichi Sugimura, Ann‐Na Cho, Sang Jin Lee   +17 more
wiley   +1 more source

Assessment of Chemical Treatment on Hemp Fiber Utilized as Reinforcement in Polymer Composites: Association of Thermal Degradation and Activation Energy of Fiber

Journal of Natural Fibers, 2022
The primary purpose of the research is to improve the surface of hemp fibers chemically. The outcome of different chemical treatments of fibers on their chemical, morphological, physical, and thermal properties has been studied.
Priyanka Soni, Shishir Sinha
doaj   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Recycling of Aluminosilicate-Based Solid Wastes through Alkali-Activation: Preparation, Characterization, and Challenges

Buildings
Recycling aluminosilicate-based solid wastes is imperative to realize the sustainable development of constructions. By using alkali activation technology, aluminosilicate-based solid wastes, such as furnace slag, fly ash, red mud, and most of the bio ...
Lichao Feng, Shengjie Yi, Shuyuan Zhao, Qiucheng Zhong, Feirong Ren, Chen Liu, Yu Zhang, Wenshou Wang, Ning Xie, Zhenming Li, Na Cui   +10 more
doaj   +1 more source

Instantaneous activation energy of alkali activated materials

RILEM Technical Letters, 2019
Alkali activated materials (AAM) are generally cured at high temperatures to compensate for the low reaction rate. Higher temperature accelerates the reaction of AAM as in cement-based materials and this effect is generally predicted using Arrhenius ...
Shiju Joseph, Siva Uppalapati, Ozlem Cizer   +2 more
doaj   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

Advanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz, Jeanne Rebours, Zoulikha Zerrouqi, Noée Dumait, Maria Amela‐Cortes, Nikolai Scheuring, Sara Simonovska, Sebastian Marino, Max Ebert, Stéphane Cordier, Sabine Laschat, Yann Molard   +11 more
wiley   +1 more source