Materials Today Catalysis最新文献

{"title":"Innovations in catalytic understanding: A journey through advanced characterization","authors":"Ifeanyi Michael Smarte Anekwe ,&nbsp;Stephen Okiemute Akpasi ,&nbsp;Emeka Michael Enemuo ,&nbsp;Darlington Ashiegbu ,&nbsp;Sherif Ishola Mustapha ,&nbsp;Yusuf Makarfi Isa","doi":"10.1016/j.mtcata.2024.100061","DOIUrl":"10.1016/j.mtcata.2024.100061","url":null,"abstract":"<div><div>This work provides a comprehensive overview of advanced characterisation techniques to unravel the molecular intricacies of catalytic processes. It begins with an introduction to catalytic processes and emphasises the importance of innovations in characterisation techniques, including SEM, XRD, UV-Vis, FTIR, RAMAN, XPS, NMR, TEM, AFM and the combined application of these techniques for improved catalytic investigation. The review of the development of catalytic processes provides a historical overview of progress and examines paradigm shifts in catalytic mechanisms and catalyst categories. Conventional microscopic and spectroscopic tools are revisited, highlighting the improvements in these techniques that provide insight into catalytic structures through surface analysis. Significant advances, including the application of computational techniques, in the study of catalysts are also discussed, focusing on state-of-the-art techniques that provide unprecedented detail on catalyst properties, mechanisms and processes. Comparative evaluations highlight the advantages and limitations of these techniques. The study concludes by identifying and overcoming challenges, anticipating prospects and emphasising the constant quest for innovation in understanding catalysts. By integrating developments in microscopic and spectroscopic methods, the study provides a comprehensive insight into how these tools improve the precision and depth of catalyst characterisation, driving innovation and future directions in catalysis research.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100061"},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000231/pdfft?md5=eda9c71863431be2bd77dc1b0173f6ef&pid=1-s2.0-S2949754X24000231-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover","authors":"","doi":"10.1016/S2949-754X(24)00025-5","DOIUrl":"10.1016/S2949-754X(24)00025-5","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"6 ","pages":"Article 100063"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000255/pdfft?md5=0cddb237fea10831f4399dfae5a707b3&pid=1-s2.0-S2949754X24000255-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wafer scale and substrate-agnostic growth of MoS2 nanowalls for efficient electrocatalytic hydrogen generation in acidic and alkaline media","authors":"Ziyang Gan ,&nbsp;Rayantan Sadhukhan ,&nbsp;Christof Neumann ,&nbsp;Nandita Mohandas ,&nbsp;Emad Najafidehaghani ,&nbsp;Manuel Mundszinger ,&nbsp;Johannes Biskupek ,&nbsp;Ute Kaiser ,&nbsp;Tharangattu N. Narayanan ,&nbsp;Antony George ,&nbsp;Andrey Turchanin","doi":"10.1016/j.mtcata.2024.100060","DOIUrl":"10.1016/j.mtcata.2024.100060","url":null,"abstract":"<div><p>Emerging as a promising alternative to expensive platinum-based catalysts for electrocatalytic hydrogen evolution reaction (HER), molybdenum disulfide (MoS₂) stands out for its favourable thermodynamic properties. However, the catalytic activity of MoS₂ is mostly confined to its edges while the basal plane remains inactive, limiting practical applicability. Fabrication of stable MoS₂ structures with enhanced active sites on a given surface area still remains a complex task. Here we introduce a substrate-agnostic, metal-organic chemical vapour deposition (MOCVD) method for large-area 3D dendritic nanostructures of 2D MoS₂, termed as “MoS₂ nanowalls”. Using scanning and transmission electron microscopy (SEM/TEM), we elucidate the growth mechanism of the MoS₂ nanowalls and their branched dendritic structure. Even subjected to extreme pH environments (0 and 14) during the HER, the grown MoS₂ nanowalls show remarkable stability even after &gt;170 hours of continuous operation and exhibit excellent catalytic activity with 10 mAcm⁻² current density achievable by applying low overpotentials (309±2 mV at pH = 0 and 272±2 mV at pH = 14). The presented large-area growth method for inexpensive MoS₂ nanowall based catalyst can pave the way for practical applications of water electrolysis cells operating at low voltages (≤1.5 V).</p></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"6 ","pages":"Article 100060"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X2400022X/pdfft?md5=3786ea9c0af59ae7ea78710e2288582f&pid=1-s2.0-S2949754X2400022X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ediorial Board","authors":"","doi":"10.1016/S2949-754X(24)00026-7","DOIUrl":"10.1016/S2949-754X(24)00026-7","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"6 ","pages":"Article 100064"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000267/pdfft?md5=afc6a75edc28b7fc4414b6514fb83ae1&pid=1-s2.0-S2949754X24000267-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“Heating where it hurts”: Electromagnetic induction remote energy transfer to a solid catalyst enables waste polymer upcycling","authors":"Marcos G. Farpón,&nbsp;Enrique Torregrosa,&nbsp;Gonzalo Prieto","doi":"10.1016/j.mtcata.2024.100059","DOIUrl":"10.1016/j.mtcata.2024.100059","url":null,"abstract":"<div><p>Electromagnetic induction heating currently attracts significant attention as a means to electrify catalytic processes and leverage a highly specific and localized energy supply. This Comment article features the application of this unconventional energy input for waste polymer conversion to fuel hydrocarbons.</p></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"6 ","pages":"Article 100059"},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000218/pdfft?md5=acf4c1c41b42a8ebdc0b279f0e689320&pid=1-s2.0-S2949754X24000218-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141848684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of m- and p-xylene linked bimetallic Ni-cyclam-complexes as potential electrocatalysts for the CO2 reduction","authors":"Sarah Bimmermann ,&nbsp;Daniel Siegmund ,&nbsp;Kallol Ray ,&nbsp;Ulf-Peter Apfel","doi":"10.1016/j.mtcata.2024.100058","DOIUrl":"https://doi.org/10.1016/j.mtcata.2024.100058","url":null,"abstract":"<div><p>Among the various molecular CO₂ reduction catalysts, the [Ni(cyclam)]²⁺ (<strong>Ni-{N₄})</strong> complex with its earth-abundant metal center and macrocyclic ligand proved to be efficient for the selective electrochemical conversion of CO₂ to CO. In the present study we now connected the two Ni-cyclam units by using <em>para</em>- and <em>meta</em>-xylene as organic linkers attached to the amines of the macrocycle to form the <em><strong>p</strong></em><strong>-{Ni₂} and</strong> <em><strong>m</strong></em><strong>-{Ni₂}</strong> complexes, respectively, and test them as catalysts for the electrochemical CO₂ reduction reactions. Notably, the <em><strong>p</strong></em><strong>-{Ni₂}</strong> complex demonstrates a higher faraday efficiency in the electrochemical reduction of CO₂ to CO compared to the <em><strong>m</strong></em><strong>-{Ni₂}</strong> complex. This finding highlights the significant role played by the M-M distance in influencing this catalytic process.</p></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"6 ","pages":"Article 100058"},"PeriodicalIF":0.0,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000206/pdfft?md5=b643e202f5402da26a8e5f551eaf7f0d&pid=1-s2.0-S2949754X24000206-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141479384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ediorial Board","authors":"","doi":"10.1016/S2949-754X(24)00019-X","DOIUrl":"https://doi.org/10.1016/S2949-754X(24)00019-X","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"5 ","pages":"Article 100057"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X2400019X/pdfft?md5=e7ecc690afdfaf32095cad962a05a175&pid=1-s2.0-S2949754X2400019X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141323993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modification strategies and applications of Mn–Cd–S solid solution-based photocatalysts","authors":"Songqing Zhang ,&nbsp;Jiarui Lou ,&nbsp;Chenhui Wang ,&nbsp;Qian Li ,&nbsp;Yufeng Li ,&nbsp;Linfeng Jin ,&nbsp;Changfa Guo","doi":"10.1016/j.mtcata.2024.100055","DOIUrl":"10.1016/j.mtcata.2024.100055","url":null,"abstract":"<div><p>Semiconductor photocatalyzed energy production and environment treatment have received a lot of attention. Mn–Cd–S solid solutions (Mn_<em>x</em>Cd_{1−<em>x</em>}S) with tunable band structure, suitable redox capacity, and visible light response is recognized as one of the most promising photocatalysts for practical applications. However, low separation efficiency of photogenerated carriers and sluggish reaction kinetics restricts its photocatalytic activity. This review discusses the advantages and drawbacks of Mn_<em>x</em>Cd_{1−<em>x</em>}S for photocatalysis in terms of electronic band structure and surveys the modification strategies of photocatalytic activity, including modulation of Mn/Cd ratio, morphology/structure regulation, defect engineering, construction of heterojunction, loading cocatalysts, and integration of multiple strategies. Then, the progress in photocatalytic water splitting to hydrogen, carbon dioxide reduction, and pollutant degradation using Mn_<em>x</em>Cd_{1−<em>x</em>}S-based materials are summarized. Finally, it is concluded by outlining the challenges and opportunities for developing efficient photocatalysts based on Mn_<em>x</em>Cd_{1−<em>x</em>}S.</p></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"5 ","pages":"Article 100055"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000176/pdfft?md5=572fb71d5bec835bd4b23bb2b40c2d37&pid=1-s2.0-S2949754X24000176-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141136771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover","authors":"","doi":"10.1016/S2949-754X(24)00018-8","DOIUrl":"https://doi.org/10.1016/S2949-754X(24)00018-8","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"5 ","pages":"Article 100056"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000188/pdfft?md5=ebc1cd23ba96d8f0b9fad507a9bb1d1d&pid=1-s2.0-S2949754X24000188-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141323994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of β-fluorinated porphyrin in changing selectivity for electrochemical O2 reduction","authors":"Ashwin Chaturvedi ,&nbsp;Sandeep Dash ,&nbsp;Soumalya Sinha ,&nbsp;Julien A. Panetier ,&nbsp;Jianbing Jiang Jimmy","doi":"10.1016/j.mtcata.2024.100053","DOIUrl":"10.1016/j.mtcata.2024.100053","url":null,"abstract":"<div><p>The development of catalytic systems that selectively convert O₂ to water is required to progress fuel cell technology. As an alternative to platinum catalysts, derivatives of iron and cobalt porphyrin molecular catalysts provide one benchmark for catalyst design. However, the inclusion of these catalysts into homogeneous platforms remains a difficulty. Co-porphyrins have been studied as heterogeneous O₂ reduction catalysts; however, they have not been explored much in homogeneous systems. Moreover, they suffer from poor selectivity for the desired four-electron reduction of O₂ to H₂O. Herein, we present two cobalt-based β-fluorinated porphyrin complexes (<strong>CoTPF</strong>_{<strong>8</strong>}<strong>(OH)</strong>_{<strong>2</strong>} and <strong>CoTPF</strong>_{<strong>8</strong>}<strong>(OH)</strong>_{<strong>4</strong>}) and demonstrate applicability as effective catalysts for the oxygen reduction reaction. Using rotating ring-disk electrochemistry, the catalysts, <strong>CoTPF</strong>_{<strong>8</strong>}<strong>(OH)</strong>_{<strong>2</strong>} and <strong>CoTPF</strong>_{<strong>8</strong>}<strong>(OH)</strong>_{<strong>4</strong>}, showed maximum Faradaic efficiency for H₂O of 92 % and 97 %, respectively. DFT calculations suggest that the formation of a phlorin intermediate could occur before O₂ reduction and that a stronger H₂O₂ binding in the cobalt-based β-fluorinated porphyrin species compared to the unsubstituted parent compound, <strong>CoTP(OH)</strong>_{<strong>2</strong>}, was responsible for the observed experimental selectivity for H₂O. These results reveal that the β-fluorinated porphyrin catalyst serves as a novel platform for investigating molecular electrocatalytic reactions.</p></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"5 ","pages":"Article 100053"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949754X24000152/pdfft?md5=7191869edba1dac933c5513a010a32f1&pid=1-s2.0-S2949754X24000152-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141132117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}