Results 201 to 210 of about 20,744 (265)

Inversed Cation Size Effects on Methanol Formations From CO2 Electroreduction by Immobilized Cobalt Phthalocyanine

Angewandte Chemie, EarlyView.
Multiscale simulations reveal an inversed cation size effect (Li+ > Na+ > K+ > Cs+) in immobilized cobalt phthalocyanine ‐catalyzed CO2 reduction to methanol. Smaller cations like Li+ effectively stabilize the rate‐limiting proton‐transfer transition state through intimate coordination, whereas their disruption of the local hydrogen‐bond network ...
Ke Ye, Min Hu, Guozhen Zhang, Mårten S. G. Ahlquist   +3 more
wiley   +1 more source

Mechanochemistry Meets Catalysis: Metal Complexes for Greener Organic Transformations

Angewandte Chemie, EarlyView.
Mechanochemistry is redefining metal catalysis by controlling catalyst formulation, speciation, and deployment. This Review shows how milling, LAG, RAM, and TSE enable rapid metal‐complex assembly, distinctive catalytic manifolds, and scalable synthesis beyond solution chemistry.
Sourav Behera, Francesco Basoccu, Andrea Porcheddu   +2 more
wiley   +1 more source

Programmable Solid‐Electrolyte Interfaces for Efficient and Selective Electrochemical Hydrogenations

Angewandte Chemie, EarlyView.
Poly(ionic liquid) binders are shown to actively control the electrode microenvironment, strongly enhancing electrochemical hydrogenation compared to traditional binders. The work redefines the binder as an active component of catalytic electrode design, reshaping local potential gradients and interfacial ion distribution to modulate adsorbed H ...
Anastasios Orestis Grammenos, Jessica Brandt, Yu Zhang, Zeen Wu, Mateusz M. Marzec, Sotirios Sotiropoulos, Piotr Jeleń, Jiayin Yuan, Markus Antonietti, Mateusz Odziomek   +9 more
wiley   +1 more source

Structure- and Morphology-Controlled Synthesis of Hexagonal Ni_2-x Zn _x P Nanocrystals and Their Composition-Dependent Electrocatalytic Activity for Hydrogen Evolution Reaction. [PDF]

ACS Appl Energy Mater
Graves LS, Sarkar R, Baker J, Lao KU, Arachchige IU.   +4 more
europepmc   +1 more source

Palladium‐Doping‐Enabled Interface Synergy for Superb Ampere Level Ammonia Electrosynthesis From Nitrate

Angewandte Chemie, EarlyView.
Isolated Pd sites in a metallic Co matrix boost nitrate‐to‐ammonia conversion. Pd doping optimizes intermediate adsorption and reconstructs the interfacial microenvironment, promoting cation enrichment and a hydrogen‐down‐oriented water network. This dual modulation facilitates proton transfer and intermediate stabilization, enabling high ammonia ...
Qun He, Chuanqiang Wu, Zhangsheng Shi, Dongxue Yu, Wei Jiang, Li Song, Xin Wang   +6 more
wiley   +1 more source

Enzyme‐Like Synthetic Cleft for Light‐Driven Water‐Oxidation Catalysis Via an Oxide Relay Pathway

Angewandte Chemie, EarlyView.
A carboxylic acid group introduced into the second coordination sphere of a Ru(bda) water oxidation catalyst forms a defined hydrogen bond within the catalytic cleft. This interaction locks the group in place and enables an intramolecular oxide relay pathway between Ru(V)═O and the carboxylate group, providing a distinct and efficient route for O─O ...
Daniel A. P. Friedewald, Gourab Das, Philipp H. Kirchner, Olga Anhalt, Deqi Tang, Sandra Luber, Florian Beuerle, Frank Würthner   +7 more
wiley   +1 more source

Ketal Protection of Glycerol for Selective Electrosynthesis of Glyceric Acid in Highly Alkaline Media

Angewandte Chemie, EarlyView.
Using a ketal‐protected glycerol derivative (solketal) as the oxidation substrate enables site‐selective electrooxidation that suppresses C–C cleavage on non‐noble catalysts. Highly alkaline conditions promote reactive solketal alkoxide formation, weaken the Cα─H bond to facilitate dehydrogenation, and buffer local acidification, enabling a record‐high
Jiamin Wang, Baokun Zhang, Kanglei Pang, Egon Campos dos Santos, Hong Liu, Mats Johnsson, Xiaowen Yu   +6 more
wiley   +1 more source

Thermocatalytic epoxidation by cobalt sulfide inspired by the material's electrocatalytic activity for oxygen evolution reaction.

Catal Sci Technol
Wyss V, Dinu IA, Marot L, Palivan CG, Delley MF.   +4 more
europepmc   +1 more source

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Electrocatalytic Activity of Polyaniline in Magnesium–Sulfur Batteries

The Journal of Physical Chemistry Letters, 2022
Rechargeable magnesium-sulfur (Mg-S) batteries offer the potential for inexpensive energy storage alternatives to other metal-ion batteries for the grid scale and household applications. Despite all economic and resource advantages, Mg-S battery chemistry suffers from a complicated reaction mechanism and extremely slow reaction kinetics. To improve the
Murali Krishna, Arnab Ghosh, Divyamahalakshmi Muthuraj, Sharmistha Das, Sagar Mitra   +4 more
openaire   +2 more sources

Imaging the electrocatalytic activity of single nanoparticles

Nature Nanotechnology, 2012
The electrocatalytic properties of nanoparticles depend on their size, shape and composition. These properties are typically probed by measuring the total electrocatalytic reaction current of a large number of nanoparticles, but this approach is time-consuming and can only measure the average catalytic activity of the nanoparticles under study. However,
Xiaonan, Shan, Ismael, Díez-Pérez, Luojia, Wang, Peter, Wiktor, Ying, Gu, Lihua, Zhang, Wei, Wang, Jin, Lu, Shaopeng, Wang, Qihuang, Gong, Jinghong, Li, Nongjian, Tao   +11 more
openaire   +2 more sources