Results 81 to 90 of about 31,033 (331)
Angewandte Chemie, EarlyView.A catalytic network embedding a formal rearrangement enables the first catalytic enantioselective multicomponent reaction (MCR) of sulfur ylides. In the presence of a bulky chiral phosphoric acid, the reaction combines sulfoxonium ylides, aldehydes and thiols, and affords synthetically versatile β‐hydroxy‐α‐sulfanyl carbonyl compounds in ...
Nicolò Santarelli +10 more
wiley +2 more sources
A review on physical and chemical hydrogen storage methods for sustainable energy applications
Unconventional ResourcesA comprehensive review of physical, chemical, and geological hydrogen storage and delivery methods to support sustainable energy systems is presented a survey of compressed gas, liquid hydrogen, adsorption on porous carbon and metal organic frameworks ...
Salah Sabeeh Abed Al Kareem +6 more
doaj +1 more source
Reductive amination with zinc powder in aqueous media
Beilstein Journal of Organic Chemistry, 2011 Zinc powder in aqueous alkaline media was employed to perform reductive amination of aldehydes with primary amines. The corresponding secondary amines were obtained in good yields along with minor amounts of hydrodimerization byproducts.
Giovanni B. Giovenzana +3 more
doaj +1 more source
Electronic Principles of Hydrogen Incorporation and Dynamics in Metal Hydrides
Crystals, 2012 An approach to various metal hydrides based on electronic principles is presented. The effective medium theory (EMT) is used to illustrate fundamental aspects of metal-hydrogen interaction and clarify the most important processes taking place during the ...
Ljiljana Matović +4 more
doaj +1 more source
, 2015 Emerets's experiments on pressurized sulfur hydride have shown that H3S metal has the highest known superconducting critical temperature Tc=203K.
Abe +99 more
core +2 more sources
Advanced Science, EarlyView.Complex hydride anion substitution in argyrodite electrolytes has attracted attention for improving interfacial stability, yet the influence of these anions at Li metal interfaces remains unclear. This work shows that electrochemically formed BH4−‐derived interphases enable stable high‐current full‐cell cycling.
Sangho Lee +13 more
wiley +1 more source
Structurally Constrained Stibenium: Metallomimetic C−Si Bond Activation
Angewandte Chemie, EarlyView.A structurally constrained stibenium cation supported by a 2,6‐bis(o‐carborano)pyridine pincer‐type ligand was prepared, and its preliminary reactivity toward silanes was investigated. Remarkably, Si−C bonds in silanes undergo activation via an oxidative‐addition‐type process at the cationic Sb center.
Donia Toami, Roman Dobrovetsky
wiley +2 more sources
Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion
Advanced Science, EarlyView.This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv +6 more
wiley +1 more source
Consequences of Medium‐Pore Zeolite Constraints for Alkene Cracking—The Case of n‐Pentene
Angewandte Chemie, EarlyView.Alkene cracking in medium‐pore zeolites is governed by a balance of enthalpic and entropic effects. Intrinsic barriers are quantified and shown to be lower than for alkanes due to stabilization of carbenium‐ion‐like transition states. Confinement and extra‐framework aluminum modulate reactivity by tuning transition‐state energetics, providing a ...
Ruixue Zhao +4 more
wiley +2 more sources
Advanced Science, EarlyView.This review presents an integrated design roadmap for practical lithium–sulfur batteries, moving beyond isolated material breakthroughs to the synergistic combination of three interdependent frontiers: Scale‐Up, Electrolyte‐Cathode Synergy, and AI/ML Data‐Driven Design.
Shihzad Shakil +6 more
wiley +1 more source