{"title":"Solid-State NMR of Heterogeneous Catalysts","authors":"Nadia Haro Mares, Millena Logrado, Jan Kergassner, Bingyu Zhang, Torsten Gutmann, Gerd Buntkowsky","doi":"10.1002/cctc.202401159","DOIUrl":"https://doi.org/10.1002/cctc.202401159","url":null,"abstract":"<p>Recent advances in solid-state nuclear magnetic resonance (NMR) spectroscopy, combined with dynamic nuclear polarization (DNP), quantum chemical DFT calculations, and gas-phase NMR spectroscopy investigating the structure and reactivity of heterogeneous catalysts are reviewed. The investigated catalysts range from classical mononuclear catalysts, like immobilized derivates of Wilkinson's catalysts over binuclear catalysts such as the dirhodium paddlewheel catalyst to catalytic nanoparticles, employing various support materials, such as mesoporous silica gels, coordination polymers, and biomaterials such as cellulose.</p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 22","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202401159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-10-09DOI: 10.1002/cctc.202401539
{"title":"Retraction: Nanoporous Au/Ag Catalyzed Benzylic sp3C−H Oxidation of 9H-Fluorene Derivatives and Similar Molecules With TBHP","authors":"","doi":"10.1002/cctc.202401539","DOIUrl":"https://doi.org/10.1002/cctc.202401539","url":null,"abstract":"<p><b>RETRACTION</b>: J. Thayssen, W. Riedel, T. Risse, A. Staubitz and A. Wittstock, “Nanoporous Au/Ag Catalyzed Benzylic sp<sup>3</sup>C−H Oxidation of 9H-Fluorene Derivatives and Similar Molecules With TBHP,” <i>ChemCatChem</i> <b>2024</b>, <i>16</i>, e202301695, https://doi.org/10.1002/cctc.202301695.</p><p>The above article, published online on 25 March 2024 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the authors; the journal Editor-in-Chief, Sandra González Gallardo; and Wiley-VCH GmbH, Weinheim. Following publication, the authors noticed that for some experiments, there might have been cross-contamination with another catalyst due to an insufficient cleaning procedure by laboratory dish washer only. As it is unclear which experiments are affected, all need to be reproduced. The authors intend to repeat experiments to produce correct data. Since repetition of experiments will take considerable time and the editors cannot be certain that new data will not affect the conclusions of the study, they have decided it is appropriate to retract the article.</p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 20","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202401539","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-10-09DOI: 10.1002/cctc.202401397
{"title":"CORRIGENDUM: Metal Oxides Derived from Perovskite or Spinel for the Selective Hydrogenation of α,β-Unsaturated Aldehydes: A Mini–Review”","authors":"","doi":"10.1002/cctc.202401397","DOIUrl":"https://doi.org/10.1002/cctc.202401397","url":null,"abstract":"<p>X. Li, H. Xin. Metal Oxides Derived from Perovskite or Spinel for the Selective Hydrogenation of α,β-Unsaturated Aldehydes: A Mini–Review, ChemCatChem, 2024; 16: e202301483.</p><p>In the main text, Table 1 and Table 2 were mistakenly deleted.</p><p>We apologize for this error.</p><p>Table 1 Mixed metal oxides with perovskite or spinel structure as supports to load noble metal NPs for the selective hydrogenation of α,β-unsaturated aldehydes.\u0000</p><p>Table 2 Mixed metal oxides with perovskite or spinel structure as catalyst precursors or as catalyst for the (transfer) hydrogenation of α,β-unsaturated aldehydes.\u0000</p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 21","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202401397","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142641411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-10-07DOI: 10.1002/cctc.202481901
Dr. Wei Tian, Dr. José E. Herrera
{"title":"Front Cover: Catalytic Relevance of Mg-Al-O Basic Centers in the Upgrade of Ethanol to n-Butanol (ChemCatChem 19/2024)","authors":"Dr. Wei Tian, Dr. José E. Herrera","doi":"10.1002/cctc.202481901","DOIUrl":"https://doi.org/10.1002/cctc.202481901","url":null,"abstract":"<p><b>The Front Cover</b> depicts the stages ethanol follows during its conversion to n-butanol over a bifunctional catalyst, and the use of probe molecules and spectroscopy to interrogate catalytic sites. Applying a combination of in-situ FTIR, CO<sub>2</sub>-TPD, and operando titration, Wei Tian and José Herrera use carbon dioxide and acetic acid to identify and quantify catalytically relevant functionalities responsible for C–C couplings. Their findings indicate n-butanol formation catalyzed by MgAlO systems is regulated by α-carbon proton abstraction taking place only over strong basic centers. More information can be found in the Research Article by Wei Tian and José E. Herrera (DOI: 10.1002/cctc.202400225).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 19","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202481901","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-10-07DOI: 10.1002/cctc.202481902
Georgina P. Ortenzi, Candelaria Leal-Marchena, Marcos B. Gómez Costa, M. Laura Martínez
{"title":"Cover Feature: Supported Cobalt Oxide Nanoparticles: The Influence of Mesoporous Materials and their Role in Methyl Phenyl Sulfide Oxidation Reactions (ChemCatChem 19/2024)","authors":"Georgina P. Ortenzi, Candelaria Leal-Marchena, Marcos B. Gómez Costa, M. Laura Martínez","doi":"10.1002/cctc.202481902","DOIUrl":"https://doi.org/10.1002/cctc.202481902","url":null,"abstract":"<p>The Cover Feature points to the work of M. Laura Martínez and co-workers, who investigated the effect of incorporating cobalt oxide nanoparticles into mesoporous materials, specifically SBA-15 and mesoporous cellular foam (MCF). The catalytic activity of Co-MCF was found to be higher in the oxidation reactions of methyl phenyl sulfide, resulting in improved yields and selectivity towards sulfone formation. This enhanced performance can be attributed to the larger quantity of CoO present, which facilitates the formation of catalytically active complexes such as [Co-OOH(Co3+)]. More information can be found in the Research Article by M. Laura Martínez and co-workers (DOI: 10.1002/cctc.202400836).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 19","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202481902","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent Advances in Photocatalytic Nitrogen Fixation Based on Two-Dimensional Materials","authors":"Xi-Cheng Tang, Zhu Ding, Zi-Hao Wang, Nayab Arif, Yu-Yan Chen, Luyan Li, Yu-Jia Zeng","doi":"10.1002/cctc.202401355","DOIUrl":"https://doi.org/10.1002/cctc.202401355","url":null,"abstract":"<p>Utilizing solar energy for photocatalytic nitrogen fixation has been extensively regarded as a promising avenue towards renewable nitrogen energy production. 2D materials, renowned for their unique structures and properties, have sparked remarkable advancements in the realm of energy and environment sciences. In this review, we delve into the recent advancements pertaining to 2D materials for solar-driven photocatalytic nitrogen fixation. This encompasses a diverse array of materials, including metal carbides/nitrides (MXenes), transition metal dichalcogenides (TMDs or TMDCs), graphitized carbon nitride (g-C<sub>3</sub>N<sub>4</sub>), metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and covalent triazine-based frameworks (CTFs). We offer a fundamental understanding of the functionalities exhibited by various 2D materials in enhancing photocatalytic nitrogen fixation activity. The photocatalytic properties of these 2D materials are meticulously examined from multiple perspectives, including visible light absorption capabilities, charge transfer within the energy band, and reaction mechanisms. Finally, we present an in-depth discussion on the existing challenges and prospects surrounding the application of 2D materials in photocatalytic nitrogen fixation.</p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 24","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-09-26DOI: 10.1002/cctc.202401380
Zilong Yan, Shang Wang, Xinyu Mao, Dong Xing
{"title":"Asymmetric Alkylative Difunctionalization of Carbon–Carbon Double Bonds by Aliphatic C─H Bond Activation","authors":"Zilong Yan, Shang Wang, Xinyu Mao, Dong Xing","doi":"10.1002/cctc.202401380","DOIUrl":"https://doi.org/10.1002/cctc.202401380","url":null,"abstract":"<p>This paper highlights the latest advancements in asymmetric alkylative difunctionalization of carbon–carbon double bonds by utilizing aliphatic C─H substrates as alkyl radical precursors. By integrating different hydrogen atom transfer (HAT) processes with various transition metal catalytic systems, various alkane substrates can be efficiently converted into corresponding alkyl radicals, which then participate in radical additions to carbon–carbon double bonds followed by stereoselective functionalizations with a third component. These strategies leverage inexpensive, abundant, and readily available alkane feedstocks to rapidly construct complex chiral molecules, demonstrating high step and atom economy. This paper focuses on recent progress and applications in this area, provides a comprehensive perspective on current developments, and suggests future directions in alkane-involved asymmetric transformations.</p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 24","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-09-25DOI: 10.1002/cctc.202401032
Nicolas Illy, Hongqing Fu, Emma Mongkhoun
{"title":"Simple/commercially-available Lewis acid in anionic ring-opening polymerization: powerful compounds with multiple applications in macromolecular engineering","authors":"Nicolas Illy, Hongqing Fu, Emma Mongkhoun","doi":"10.1002/cctc.202401032","DOIUrl":"https://doi.org/10.1002/cctc.202401032","url":null,"abstract":"Simple and commercially-available Lewis acids (LA) are commonly used catalysts in anionic ring-opening polymerization (AROP) reactions. In particular, for the AROP of epoxides, the addition of a Lewis acid allows the transition from a so-called end-chain mechanism to a monomer-activated mechanism. The presence of the LA simultaneously leads to a decrease in the reactivity of active centers through the formation of a three-species ate complex and to the activation of the monomer by LA coordination to the oxygen atom of the oxirane ring. These two effects result in both an increase in propagation kinetics and a decrease in transfer reactions, which has enabled the synthesis of high molecular weight polyethers. However, the impact of Lewis acids goes far beyond these classic effects. They have indeed enabled the polymerization of new functional monomers as well as the synthesis of heterotelechelic macromolecules. Also widely used as catalysts in copolymerization reactions (statistical, sequential, or alternating) Lewis acids can strongly influence the composition and sequence of monomer units in macromolecules. Finally, Lewis acids can also significantly influence the architecture of the obtained macromolecules. This review aims to list the various contributions of Lewis acids to macromolecular engineering and illustrate them with well-chosen examples.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"38 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142317803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-09-24DOI: 10.1002/cctc.202400899
Maheshika Perera, Mitchell Barclay, Kostya (Ken) Ostrikov, Jennifer MacLeod, Anthony P. O'Mullane
{"title":"Plasma-Electrified Synthesis of Atom-Efficient Electrocatalysts for Sustainable Water Catalysis and Beyond","authors":"Maheshika Perera, Mitchell Barclay, Kostya (Ken) Ostrikov, Jennifer MacLeod, Anthony P. O'Mullane","doi":"10.1002/cctc.202400899","DOIUrl":"https://doi.org/10.1002/cctc.202400899","url":null,"abstract":"<p>The downsizing of metal structures to the nano and atomic level, thereby creating nanoparticle catalysts (NPCs), sub-nanometer cluster catalysts (SNCCs), or single-atom catalysts (SACs), has gained significant interest. In particular, synthesizing these types of catalysts using low-temperature plasma-electrified methods is an emerging field which is highly applicable to electrochemical water splitting for the sustainable production of green hydrogen. Surface modification via plasma treatment provides a route for nanoparticle immobilization or single-atom trapping which ensures high atom utilization during electrolysis reactions. Plasma can also be used to create NPCs, SNCCs, and SACs from various precursors as well as modify their surface properties once formed which impacts significantly on the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Therefore, in this review we emphasize the role that low-temperature plasma-electrified synthetic strategies play in electrocatalyst development for water splitting reactions and explore the crucial relationship between the electronic and coordination environment of atom-efficient catalysts (AECs) and their resulting catalytic activity. We also discuss methods to characterize these types of catalysts and the possibility of scaling up this technology which will be required for commercial applications.</p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 24","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202400899","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ChemCatChemPub Date : 2024-09-24DOI: 10.1002/cctc.202481801
Dr. Mohamed M. Elnagar, Dr. Ludwig A. Kibler, Prof. Dr. Timo Jacob
{"title":"Front Cover: Effect of Alkali Metal Cations and Trace Metal Impurities on Cathodic Corrosion of Gold Electrode Surfaces (ChemCatChem 18/2024)","authors":"Dr. Mohamed M. Elnagar, Dr. Ludwig A. Kibler, Prof. Dr. Timo Jacob","doi":"10.1002/cctc.202481801","DOIUrl":"https://doi.org/10.1002/cctc.202481801","url":null,"abstract":"<p><b>The Front Cover</b> illustrates how different alkali metal cations influence the cathodic corrosion of gold surfaces. Polarizing gold at highly negative potentials results in various structures: nanoporous surfaces with CsOH, spherical nanoparticles and triangular pits with KOH, octahedral nanocrystals with NaOH, and triangular pits with LiOH. The study presented here also highlights the crucial role of electrolyte purity, as trace iron and nickel impurities in CsOH significantly impact cathodic corrosion. More information can be found in the Research Article by Mohamed M. Elnagar, Ludwig A. Kibler, and Timo Jacob (DOI: 10.1002/cctc.202400526).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"16 18","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202481801","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142316811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}