Results 141 to 150 of about 206,840 (257)

Electrospun Porous Materials for the Next‐Generation Proton Exchange Membrane Fuel Cells: Progress, Challenges, and AI‐Optimized Perspectives

Carbon Energy, EarlyView.
Incorporating AI to optimize solution, process, and environment enables efficient prediction of structural properties and performance, allowing tailoring of GDL, CL, and PEM fabrication to guide PEMFC toward 9.0 kW L‒1 by 2040. ABSTRACT The performance and commercial viability of proton exchange membrane fuel cells (PEMFCs) are constrained by key ...
Shangfeng Jiang, Panfeng Wang, You Gong, Zeyu Sun, Huatan Chen, Geng Wang, Ting Tao, Chuang Zhai, Xi Wang, Ruixin Chen, Jiaxin Jiang, Bingrong Zhang   +11 more
wiley   +1 more source

Solubility of calcium silicate-based endodontic sealers in acidic and neutral pH using phosphate-free buffers. [PDF]

Braz Oral Res
Ferreira CMA, Cypriano JDSC, Santos BXD, Soares VC, Pinto KP, Coelho BP, Sassone LM, Silva EJNLD.   +7 more
europepmc   +1 more source

Zirconium modified calcium-silicate-based nanoceramics: An in vivo evaluation in a rabbit tibial defect model

, 2019
Over the past two decades calcium silicate (Ca–Si) based ceramics have been introduced as bioactive materials for bone tissue engineering applications and repairing bone defects.
Ardeshirylajimi, A, Rahmati Dehkordi, Z, Doostmohammadi, A, Karimzadeh Esfahani, Z   +3 more
core  

Challenges of Bio‐Syngas Conversion to High‐Value‐Added Liquid Chemicals and Fuels via COx Hydrogenation

Carbon Energy, EarlyView.
Converting biomass‐derived syngas into value‐added fuels and chemicals offers a promising route toward carbon neutrality, yet unfavorable H2/COx ratios, elevated CO2 levels, and trace impurities pose persistent obstacles. This review examines strategies spanning syngas conditioning, impurity‐tolerant catalyst development, and integrated process design,
Xuan Bie, Shiyu Zhang, Yuyao Yang, Shijie Yu, Jiahui Hu, Qinghai Li, Yanguo Zhang, Hui Zhou   +7 more
wiley   +1 more source

Multivalent RNA‐Cleaving Agents on a Cubic Octameric Silsesquioxane Core

Chemistry – A European Journal, EarlyView.
RNA‐cleaving agents on a cubic octameric silsesquioxane core were synthesized and characterized. Several catalytic systems of these structures were screened using hexaribonucleotide models. The best systems were then further used to study their catalytic efficiency in cleaving a HER2 mRNA model sequence. The induced cleavage sites were also determined.
Hanni Haapsaari, Iris Tuomi, Pasi Virta
wiley   +1 more source

Bioactivity and Regenerative Potential of Calcium Silicate-Based Endodontic Sealers on Human Periodontal Ligament Stem Cells: A Systematic Review of In Vitro Cellular Mechanisms. [PDF]

Cureus
Yaseen FI, Alribi AM, AlGhadyan YK, Alshehri NA, Alanazi TM, Aldhafeeri AS, Alyousef MS, Elkherayef SS, Albarqi AA, Alqahtani AM, Falatah AM.   +10 more
europepmc   +1 more source

Non‐Covalent Fluorine–Silica Anchoring of a Molecular Platinum(II) bis(NHC) Catalyst: Structure, Interface Control, and Hydrosilylation Activity

Chemistry – A European Journal, EarlyView.
A Pt(II) bis(NHC) complex is immobilized on mesoporous silica through directional F–Si interactions encoded in the ligand framework. Quantitative 19F{29Si} REDOR experiments and molecular dynamics simulations establish Å‐scale catalyst–support contacts and define the interfacial organization.
Alexander Bergen, Cindy‐Ly Tavera‐Méndez, Valentina Eichhorn, Philip Maier, Elias Harrer, Andreas Scheurer, Frank W. Heinemann, Dirk Zahn, Martin Hartmann, Dorothea Wisser, Karsten Meyer   +10 more
wiley   +1 more source

Hydrogen Release From Silicon─Hydrogen Systems: From Surface Chemistry to Higher‐Coordinate Molecular Mechanisms

Chemistry – A European Journal, EarlyView.
Hydrogen‐release processes in silicon chemistry occur across a broad spectrum of systems, including crystalline silicon surfaces, nanoporous materials, Zintl phases, and molecular hydrides. This Review highlights how Si─H activation and H2 evolution are governed by structure, coordination environment, and dynamic access to reactive geometries, with ...
Robin Rothfelder, Jonathan O. Bauer
wiley   +1 more source

Si(OTeF5)4 – A Strong, Homoleptic Pentafluoroorthotellurate‐Based Lewis Superacidic Silane

Chemistry – A European Journal, EarlyView.
The homoleptic pentafluoroorthotellurate‐based silane Si(OTeF5)4 was synthesized and fully characterized via spectroscopic techniques. The Lewis superacidic properties were investigated theoretically as well as experimentally and its utilization as a Lewis acid is demonstrated by the reaction with nitrogen bases.
Friederike Oesten, Niklas Limberg, Anja Wiesner, Simon Steinhauer, Lukas Fischer, Sebastian Riedel   +5 more
wiley   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source