Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
CO hydrogenation to methane is gaining increasing interest as one of the most promising ways to store intermittent renewable energy in the form of chemical fuels. Ni particles supported on CeO represent a highly efficient, stable and inexpensive catalyst for this reaction. Herein, Ni-doped CeO nanoparticles were tested for CO methanation showing an extremely high Ni mass-specific activity and CH selectivity. Operando characterization reveals that this performance is tightly associated with ionic Νi and Ce surface sites, while formation of metallic Ni does not seem to considerably promote the reaction. Theoretical calculations confirmed the stability of interstitial ionic Ni sites on ceria surfaces and highlighted the role of Ce-O frustrated Lewis pair (FLP), Ni-O classical Lewis pair (CLP) and Ni-Ce pair sites to the activation of H and CO molecules. To a large extent, the theoretical predictions were validated by in situ spectroscopy under H and CO : H gaseous environments.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/anie.202302087 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Unlocking Ring-Opening Polymerization of Glycidyl Propargyl Ether via Lewis Pair Organocatalysts.
ACS Macro Lett
September 2025
Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
Alkyne groups provide exceptional versatility for functionalization in macromolecular systems. However, the controlled anionic ring-opening polymerization (AROP) of epoxide monomers bearing terminal alkynes remains challenging due to the lability of alkynes under strongly basic conditions. Herein, we present a controlled AROP of glycidyl propargyl ether enabled by Lewis pair organocatalysis, employing a phosphazene base and triethylborane.
View Article and Find Full Text PDFTurn-on fluorometric assay based on functionalized gold nanoparticles for measurement of nitric oxide radical scavenging activity of phenol-, amine-, and thiol-type antioxidants.
Food Chem
August 2025
Department of Chemistry, Faculty of Engineering, İstanbul University-Cerrahpaşa, 34320 Avcılar, İstanbul, Turkey; Turkish Academy of Sciences (TUBA), Bayraktar Neighborhood, Vedat Dalokay St. No: 112, 06690 Çankaya, Ankara, Turkey. Electronic address:
An innovative fluorometric method has been developed to detect nitric oxide radicals (•NO) and NO-scavenging activity of antioxidants. Nitric oxide radicals were generated from the precursor sodium nitroprusside (SNP), and gold nanoparticles modified with a thiolate ligand (4-hydroxythiophenol) (AuNPs@4-HTP) was designed as the detector probe; addition of •NO to the thiophenol ring of AuNPs@4-HTP was followed by autoxidation of the NO-substituent to -NO which in turn interacted with the fluorophore N-(1-naphthyl)ethylenediamine (NEDa) as a Lewis acceptor-donor pair. As a result of the interaction of nitrated AuNPs@4-HTP with the amine groups of NEDa, the fluorescence of NEDa was quenched.
View Article and Find Full Text PDFPyridyl-Thiourea Ruthenium and Osmium Complexes: Coordination of Ligand and Application as FLP Hydrogenation Catalysts.
Molecules
August 2025
Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
Pyridyl-thiourea complexes of formula [(Cym)MCl(κ,-)][SbF] (Cym = --MeCHPr; = -(-tolyl)--(2-pyridylmethyl)thiourea); M = Ru (), Os ()) were synthesized by reacting the corresponding metal dimers [{(Cym)MCl}(-Cl)] with in the presence of NaSbF. Subsequent chloride abstraction with AgSbF, followed by NH deprotonation using NaHCO, afforded the cationic complexes [(Cym)M(κ,,)][SbF] (M = Ru (), (); M = Os ()) and [(Cym)M(κ,)][SbF] (M = Ru (); M = Os ()). The proposed structures for the prepared compounds are based on NMR data.
View Article and Find Full Text PDFA Lipid with Lewis Pair-Mediated Targeting and Multiple Stimuli-Responsive Delivery of Antibiotics for Bacterial Infections.
Adv Sci (Weinh)
August 2025
Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Medical University, Wenzhou, Zhejiang, 325001, China.
Integrating both targeted delivery and stimulus-responsive release into a single small molecule for drug delivery presents challenges related to synthesis, stability, and efficacy. In this study, single-molecular lipids incorporating a Lewis pair (Lp-lipids) are described, composed of a Lewis acid (phenylboronic acid) and a Lewis base (amine) within a single small molecular structure, to formulate lipid nanoparticles for antibiotic delivery. For targeted delivery to bacterial biofilms, the phenylboronic acid selectively binds to bacteria or biofilms by forming boronate ester bonds with diols in the microbial dextran or peptidoglycan.
View Article and Find Full Text PDFNear-Infrared-Absorbing B-N Lewis Pair-Functionalized Anthracene Derivatives: Electronic Structure and Second-Order NLO Properties.
J Fluoresc
August 2025
Air Force Aviation University, Changchun, 130022, Jilin, China.
Creating optical materials with linear and nonlinear properties has always been a focus of attention in the scientific community. Recently, Pf (x) displays unusual photophysical properties, such as near-infrared absorption and emission, and transparency in the visible light region, etc. However, from the perspective of improving material performance, its structure-property correlation remains to be fully investigated.
View Article and Find Full Text PDF