Results 111 to 120 of about 76,694 (210)

Understanding the Role of Morphology in the Direct Synthesis of Diethyl Carbonate Over Ceria‐Based Catalysts: An In Situ Infrared and High‐Resolution TEM Study

ChemCatChem, EarlyView.
Pure and Zr‐doped ceria‐based catalysts with different morphologies were developed for the direct synthesis of diethyl carbonate from ethanol and CO2. Rod‐shaped pure CeO2 outperformed the other samples, thanks to abundant structural defects and high basicity.
Mara Arduino, Enrico Sartoretti, Eleonora Calì, Samir Bensaid, Fabio Alessandro Deorsola   +4 more
wiley   +1 more source

One‐Pot Microwave‐Assisted Olefin Hydroaminomethylation Over Bifunctional Heterogeneous Rh Catalysts

ChemCatChem, EarlyView.
Heterogeneous lab‐made Rh/CNFs gave yield >99% in the one‐pot MW‐assisted hydroaminomethylation of olefins to amines, using EtOAc as the solvent, due to the synergy between metal and acid surface sites. Acetic acid addition promoted both conversion and selectivity during the rate‐determining hydroformylation step.
Fabio Bucciol, Emanuela Calcio Gaudino, Alberto Villa, Maria Carmen Valsania, Silvio Bellomi, Silvia Tabasso, Giancarlo Cravotto, Maela Manzoli   +7 more
wiley   +1 more source

Development of a Highly Active Catalyst System with Tuneable Selectivity for the Hydroformylation of the Renewable 1,3‐Diene β‐Myrcene

ChemCatChem, EarlyView.
Hydroformylation of 1,3‐dienes is widely perceived as inherently slow. In this study, a highly active catalyst system is presented that significantly accelerates the hydroformylation of β‐myrcene and challenges conventional assumptions about diene reactivity. Abstract This study presents an optimized method for the hydroformylation of β‐myrcene using a
Sebastian Obst, Katrin Köhnke, Thomas Seidensticker, Walter Leitner, Andreas J. Vorholt   +4 more
wiley   +1 more source

Energy Requirements for Sustainable Olefin Production From CO2 via Electro‐ or Thermal Catalysis

Chemical Engineering &Technology, EarlyView.
This study compares two pathways for sustainable olefin production: direct electrochemical CO2 reduction and water electrolysis followed by CO2 hydrogenation to methanol and conversion to olefins. We analyze energy efficiency and costs, identifying bottlenecks.
Bastian J. M. Etzold, Maximilian Hungsberg, Mahsa Ebrahim‐Moghaddam, Felix Herold, Nicolaus Dahmen, Felix Studt   +5 more
wiley   +1 more source

Graphene Derivatives as Efficient Transducing Materials for Covalent Immobilization of Biocomponents in Electrochemical Biosensors

ChemElectroChem, EarlyView.
This review explores the transformative role of graphene derivatives in electrochemical biosensors for diagnostics, environmental monitoring, and industrial sensing. Highlighting innovations in synthesis and covalent functionalization, it discusses how these materials enhance biosensor stability, specificity, and scalability.
Petr Jakubec, David Panáček, Martin‐Alex Nalepa, Marianna Rossetti, Ruslan Álvarez‐Diduk, Arben Merkoçi, Majlinda Vasjari, Lueda Kulla, Michal Otyepka   +8 more
wiley   +1 more source

Catalyst Ink Preparation Matters for Electrocatalytic Carbon Dioxide Reduction

ChemElectroChem, Volume 12, Issue 6, March 15, 2025.
This work studies how catalyst ink affects catalyst layer properties, and consequently how catalyst layer thickness and roughness influence CO2 electroreduction performance: thicker layers favor C2+ products by lowering local CO2 and increasing local pH, while thinner layers enhance C1 products by raising local CO2 and reducing local pH.
Miao Wang, Junmei Chen, Bihao Hu, Yukun Xiao, Lei Chen, Jingyi Chen, Lei Wang   +6 more
wiley   +1 more source

Tetraethylammonium Cation Activates Fe for Selective Electroreduction of CO2 to Oxalate

ChemElectroChem, EarlyView.
A tetraethylammonium‐activated iron‐based electrode drives efficient CO2 utilization in a non‐aqueous electrochemical system for scalable, high‐value commodity chemical synthesis. The strong binding energy of CO on iron surfaces has rendered Fe electrodes as poor electrochemical CO2 reduction (eCO2R) catalysts, predominantly producing hydrogen.
Rohan Sartape, Rohit Chauhan, Venkata S. R. P. Yadavalli, Ishita Goyal, Ishaku Amos, Yancun Qi, Vamsi V. Gande, Abdul M. Sarkar, Ksenija D. Glusac, Meenesh R. Singh   +9 more
wiley   +1 more source

Highly Selective H2 Production From Photoreforming of Formic Acid Triggered by Cu Single‐Atom Sites in a Cocatalyst

Carbon Energy, EarlyView.
Cu–W2N3 is designed as an efficient non‐noble metal cocatalyst, which demonstrates high hydrogen selectivity in the photoreforming of formic acid. The Cu single‐atom sites on Cu–W2N3 activate the inert surface of the cocatalyst and create conducive electron transfer channels and abundant active sites for the hydrogen evolution reaction, thus improving ...
Xiaoyuan Ye, Yuchen Dong, Weibo Hua, Wengao Zeng, Ziying Zhang, Tuo Zhang, Xiangjiu Guan, Liejin Guo   +7 more
wiley   +1 more source

Highly‐Efficient Reusable [Silica@Iminophosphine‐FeII] Hybrids for Hydrogen Production via Formic Acid and Formaldehyde Dehydrogenation

Chemistry – A European Journal, Volume 31, Issue 16, March 17, 2025.
This study presents the design and application of two Fe(II)‐based hybrid catalysts, [SiO₂@benzNP‐FeII] and [SiO₂@benzNHP‐FeII], for efficient hydrogen (H₂) production via formic acid (HCOOH) and formaldehyde (HCHO) dehydrogenation. The reduction of Schiff base ligands to incorporate N−H groups significantly enhances efficiency, stability, and ...
Konstantina Gravvani, Maria Solakidou, Maria Louloudi   +2 more
wiley   +1 more source

Spectroscopic Interrogation of Thiolate Hydrogen Bonding in the CO Sensor Protein CooA: Implications for Thiolate Ligation Stability and Cytochrome P450 Function

Chemistry – A European Journal, Accepted Article.
Cysteine (Cys) thiolate coordination is a unique ligation motif found in heme enzymes and small molecule sensors. Divergence between these two functional classes of heme thiolate proteins is a result of distinct hydrogen bonding interactions with the axial Cys(thiolate) ligand.
Brian R. Weaver, Richard J. Jodts, Brian M. Hoffman, Joshua A. Telser, Judith N. Burstyn   +4 more
wiley   +1 more source