Materials Today Catalysis最新文献

{"title":"Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2","authors":"Jian Chen ,&nbsp;Yixin Huang ,&nbsp;Liu Wan,&nbsp;Cheng Du,&nbsp;Yan Zhang,&nbsp;Mingjiang Xie","doi":"10.1016/j.mtcata.2024.100081","DOIUrl":"10.1016/j.mtcata.2024.100081","url":null,"abstract":"<div><div>The development of CdS-based photocatalysts with the appropriate bandgap structure, impressive optical response, and long-lasting reusability is both crucial and challenging. The heterogeneous catalyst, made up of polytriazine and CdS, demonstrates exceptional photogenerated charge separation and transfer capabilities, as well as superior CO₂ adsorption abilities. In this study, we have shown that the CO₂ photoassisted reduction efficiency of CdS nanosheets can be significantly improved through surface modification with a polytriazine polymer coating. The PP@CdS photocatalyst has been thoroughly characterized using techniques such as XRD, TEM, SEM, N₂ adsorption-desorption, CO₂ adsorption, DRS, XPS, and photoelectric performance tests. The catalytic performance of the PP@CdS was assessed through photoassisted CO₂ reduction reactions under visible light irradiation in an aqueous medium at 25 ℃. Owing to its enhanced CO₂ adsorption capacity and the efficient separation and utilization of photogenerated electrons, the PP@CdS photocatalyst demonstrated a CO yield (6.7 μmol/g/h) 1.3 times greater and a CH₄ yield (4.2 μmol/g/h) 1.3 times higher than that of bare CdS nanosheets. Furthermore, the PP@CdS photocatalyst demonstrated outstanding reusability in CO₂ reduction reactions. This study presents a novel approach to enhancing the CO₂ adsorption capacity and modulating the bandgap structure of polymer-coated semiconductor materials.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"8 ","pages":"Article 100081"},"PeriodicalIF":0.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143148540","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/j.mtcata.2024.100082","DOIUrl":"10.1016/j.mtcata.2024.100082","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100082"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137032","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":"MXene termination and stacking bias on the reverse water gas shift reaction catalysis","authors":"Ángel Morales-García ,&nbsp;José D. Gouveia ,&nbsp;Anna Vidal López ,&nbsp;Aleix Comas-Vives ,&nbsp;Francesc Viñes ,&nbsp;José R.B. Gomes ,&nbsp;Francesc Illas","doi":"10.1016/j.mtcata.2024.100076","DOIUrl":"10.1016/j.mtcata.2024.100076","url":null,"abstract":"<div><div>Pristine Mo₂C MXene has been recently highlighted as a highly active and robust catalyst for the reverse water gas shift (RWGS) reaction. Here, first-principles calculations based on density functional theory (DFT) coupled with mean-field microkinetic (MKM) simulations are performed to investigate the effects of the atomic layer stacking and the surface functionalization with oxo groups on the catalyst performance. The calculated data show that ABA stacked MXene has a reactivity higher than the corresponding ABC counterpart. Moreover, a ²/₃ surface monolayer oxygen coverage on both stackings (<em>i.e.</em>, Mo₂CO_4/3 MXene) enhances the overall reactivity compared with their pristine Mo₂C counterparts. The reactivity enhancement is small for the more stable ABA-stacked model, with a CO gas production aligned with experimental reports. However, the partial O-surface termination in the MXene with ABC stacking offers a more enhanced reactivity, supported by the higher CO gas production for the Mo₂C MXene models here considered. Thus, the MXene stacking and its functionalization are key aspects affecting the performance of the Mo₂C MXene for the RGWS reaction, which must be considered for realistic catalytic applications of MXenes.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100076"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746005","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":"Nickel foam/reduced graphene oxide/CoNi2S4-MoO2 nanosheets with a core–shell structure formed: An efficient electrocatalyst for the hydrogen evolution reaction","authors":"Meiling Liu ,&nbsp;Cuili Xiang ,&nbsp;Yongjin Zou ,&nbsp;Fen Xu ,&nbsp;Lixian Sun ,&nbsp;Ningbo Qin","doi":"10.1016/j.mtcata.2024.100079","DOIUrl":"10.1016/j.mtcata.2024.100079","url":null,"abstract":"<div><div>The performance of single-component hydrogen evolution reaction (HER) electrocatalysts in terms of physicochemical properties and electrocatalytic efficiency has shown limitations for large-scale industrial applications. Consequently, developing new HER electrocatalysts with superior performance and mature technology is crucial for advancing this field. In this study, nickel foam/reduced graphene oxide/CoNi₂S₄-MoO₂ (NF/rGO/CoNi₂S₄-MoO₂) was prepared using a combination of water bath and two-step hydrothermal methods. Reduced graphene oxide (rGO) enhances the catalyst’s conductivity and induces uniform distribution of CoNi₂S₄. The sheet-like CoNi₂S₄ provides numerous active sites for the vertically distributed MoO₂ nanosheets, reducing agglomeration and ensuring even distribution on the surface. The synergistic effect among rGO, CoNi₂S₄, and MoO₂, along with their unique structures, facilitates charge transfer, enhancing the material’s electrochemical hydrogen evolution capabilities even more. The synthesized NF/rGO/CoNi₂S₄-MoO₂ nanosheets exhibited excellent electrocatalytic performance. The overpotential of NF/rGO/CoNi₂S₄-MoO₂ was as low as 65 mV in a 1.0 M KOH solution at a current density of 10 mA·cm⁻², and the Tafel slope was 96.48 mV·dec⁻¹.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100079"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137083","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/j.mtcata.2024.100083","DOIUrl":"10.1016/j.mtcata.2024.100083","url":null,"abstract":"","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100083"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137033","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 the indium sulfide phase in CuInS2-TiO2 photocatalysts to boost hydrogen evolution by water splitting","authors":"Mizuki Inada ,&nbsp;Shizuki Yase ,&nbsp;Atsune Tada ,&nbsp;Takuma Yamane ,&nbsp;Yuki Miyaji ,&nbsp;Masanari Hirahara ,&nbsp;Yoshiyuki Harada ,&nbsp;Syuji Fujii ,&nbsp;Takashi Fukushima ,&nbsp;Satoru Dohshi ,&nbsp;Shinya Higashimoto","doi":"10.1016/j.mtcata.2024.100080","DOIUrl":"10.1016/j.mtcata.2024.100080","url":null,"abstract":"<div><div>The purpose of this study is to develop a visible light responsive photocatalyst that can remove such environmental pollutants as polysulfide anions and simultaneously generate clean hydrogen energy. An environmentally friendly copper indium sulfide (CuInS₂, CIS) nano-colloid was synthesized in aqueous medium for the design of such a photocatalyst. Characterization of the hydrophilic CIS with different In/Cu ratios were studied by XRD, Raman, UV-Vis, photoluminescence spectroscopy. These results showed that the long-lived photoexcited electrons in the CIS with higher In/Cu ratio can be expected to achieve efficient interaction with the reactant molecules. On the photocatalytic activity of CIS, the effect of such various supports as TiO₂, and In/Cu ratio of CIS on the reaction promotion was examined. The CIS deposited TiO₂ (CIS-TiO₂) showed higher photocatalytic activity than bulk CIS, and the indium sulfide-richer CIS-TiO₂ showed better performance. The indium sulfide moiety participates in the compensation of the defect sites in the CIS as well as the interaction between In-rich CIS and TiO₂ can achieve effective charge carrier separation. This is the first report finding that the indium-richer CuInS₂ plays an important role in an improvement of the photocatalytic activity.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100080"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143137084","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":"Atomic behaviors in PdRu solid-solution nanoparticles on CeO2-ZrO2 support for the three-way catalytic reaction","authors":"Okkyun Seo ,&nbsp;Akhil Tayal ,&nbsp;Jaemyung Kim ,&nbsp;Kohei Kusada ,&nbsp;Tomokazu Yamamoto ,&nbsp;Jiayi Tang ,&nbsp;Satoshi Hiroi ,&nbsp;Chulho Song ,&nbsp;Katsutoshi Sato ,&nbsp;Katsutoshi Nagaoka ,&nbsp;Masaaki Haneda ,&nbsp;Kazuo Kato ,&nbsp;Syo Matsumura ,&nbsp;Hiroshi Kitagawa ,&nbsp;Osami Sakata","doi":"10.1016/j.mtcata.2024.100078","DOIUrl":"10.1016/j.mtcata.2024.100078","url":null,"abstract":"<div><div>Understanding the behavior of noble-metal catalysts is a key point of catalysis research aimed at reducing the environmental and economic costs associated with the increased use of automobiles. In this study, the atomic-behaviors of Ru and Pd atoms in PdRu solid-solution nanoparticles (NPs) supported on CeO₂-ZrO₂ (CZ) as a Rh-free three-way catalyst in a modeled three-way catalytic reaction (TWCR) were elucidated using a gas conversion analysis, transmission electron microscopy, and <em>in</em>-<em>situ</em> X-ray absorption fine structure spectroscopy. We found that the PdRu NPs enlarged by the annealing effect separated a smaller grain size with the Pd-rich and Ru-rich phase under TWCR. Most of the oxidation and reduction reactions under the modeled TWCR occurred on the Ru. However, the Pd metals acted as a major role of the reduction of NO gas and oxidation of CO and C₃H₆ gas. Ru atoms just is a minor role during the modeled TWCR. This study demonstrates the potential of PdRu NPs as a three-way catalyst and reveals the atomic-behavior and catalytic role under the modeled TWCR.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100078"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746480","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":"Recent developments in functionalized mesoporous materials for CO2 conversion","authors":"Arsh Ismaili,&nbsp;Gurwinder Singh,&nbsp;CI Sathish,&nbsp;Kavitha Ramadass,&nbsp;Vinay Naral,&nbsp;Stalin Joseph,&nbsp;Mercy Benzigar,&nbsp;Muhammad Ibrar Ahmed,&nbsp;Ajayan Vinu","doi":"10.1016/j.mtcata.2024.100077","DOIUrl":"10.1016/j.mtcata.2024.100077","url":null,"abstract":"<div><div>Mesoporous materials are flourishing across every major research discipline, including carbon capture and conversion, energy storage, biomedical, photocatalysis, optics, and magnetics, and their promising potential has led to a flurry of publications. Among these applications, CO₂ conversion using porous heterogeneous catalysts such as zeolites, clays, and mesoporous materials gained much attention in recent years as it has the potential to offer a solution for global warming. Although various porous catalysts have been used for CO₂ conversion, mesoporous materials are particularly interesting owing to their large specific surface area, pore volume and pore diameter. These properties can be effectively utilized for creating unique catalytically active sites by loading metal or metal oxide species with high dispersion which are highly critical for efficient CO₂ conversion. There have also been a significant number of reports on the direct use of mesoporous metal oxides, sulfides and/or phosphides, which exhibit appealing results for CO₂ conversion as these inherently contain metal sites, and mesoporosity addition to them is an added advantage. Their continuous evolution warrants more sophisticated research to unveil their hidden properties by engaging in highly advanced characterization. The major emphasis of this review is to discuss various types of mesoporous materials mentioned above and their functionalized derivatives for CO₂ conversion to mainly C1 products. The diverse range of mesoporous materials covered in this review will provide the readers with the opportunity to delve into their specific properties that control the efficiency of CO₂ conversion.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100077"},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142724113","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":"Integrated in situ spectroscopic characterization of bi-functional nanoporous hybrid catalysts","authors":"Julio C. Fernandes P. Brito ,&nbsp;Geo Paul ,&nbsp;Claudio Cassino ,&nbsp;Ivana Miletto ,&nbsp;Leonardo Marchese ,&nbsp;Enrica Gianotti","doi":"10.1016/j.mtcata.2024.100075","DOIUrl":"10.1016/j.mtcata.2024.100075","url":null,"abstract":"<div><div>Bi-functional catalysts possess various catalytic sites and can catalyze different types of reactions in a single-pot cascade manner. Herein, we report the synthesis and characterization of mono- and bifunctional silica-based mesoporous hybrid catalysts involving acid and base active sites. The ability for cooperative catalysis has been investigated using a multi-technique approach involving powder X-ray diffraction, FT-IR, and multinuclear MAS NMR spectroscopy, as well as thermogravimetric analysis. To elucidate the nature and strength of multifunctional catalytic sites, different types of probe molecules were employed and studied using spectroscopic techniques. The results show that the activity of the mesoporous surface-grafted acid and/or base sites is directly related to the intimacy criterion, the separation between the different types of catalytic sites. The presence or absence of mutual interactions between the different catalytic sites dictates the selectivity and yield of the reactions.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100075"},"PeriodicalIF":0.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653305","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":"MXenes as catalysts for lightweight hydrogen storage materials: A review","authors":"Jiayi Deng ,&nbsp;Yun Li ,&nbsp;Hua Ning ,&nbsp;Peilin Qing ,&nbsp;Xiantun Huang ,&nbsp;Hui Luo ,&nbsp;Liang Zhang ,&nbsp;Guangxu Li ,&nbsp;Cunke Huang ,&nbsp;Zhiqiang Lan ,&nbsp;Wenzheng Zhou ,&nbsp;Jin Guo ,&nbsp;Xinhua Wang ,&nbsp;Haizhen Liu","doi":"10.1016/j.mtcata.2024.100073","DOIUrl":"10.1016/j.mtcata.2024.100073","url":null,"abstract":"<div><div>Hydrogen can serve as a clean storage medium for large-scale renewable energy due to its characteristics of cleanness, high gravimetric energy density, abundant resources, and flexible applications. However, storing hydrogen in a manner both compactly and safely is still a thorny issue currently. Hydrogen storage in materials provides a feasible solution for such tough issue. Unfortunately, most of the light-weight hydrogen storage materials such as complex metal hydrides (LiBH₄, Mg(BH₄)₂, LiAlH₄, NaAlH₄, etc.), binary light-weight metal hydrides (MgH₂, AlH₃, etc.) are currently facing the problems of high thermal stability, slow desorption and absorption kinetics, or poor reversibility. Introduction of catalysts or constructing nanostructures are two of the feasible methods that can efficiently tailor the hydrogen storage properties of the materials. Recently two-dimensional (2D) transition metal carbides, nitrides, or carbonitrides (called MXenes) have shown great development potential as catalysts to regulate the performances of hydrogen storage materials due to their unique electronic properties, layered structures and catalytic activity of the transition metals contained. It is possible to simultaneously nanoconfine and catalyze the hydrogen storage materials by layered MXenes. In this review, the synthesis methods and application situation of MXenes are first briefly introduced. Then, the emphasis is placed on the research progress and recent advances of MXenes as catalysts for regulating the hydrogen storage properties of light materials such as MgH₂, AlH₃, LiAlH₄, NaAlH₄, LiBH₄, Mg(BH₄)₂ or multicomponent hydrogen storage composites such as LiBH₄−MgH₂, MgH₂−LiAlH₄, LiBH₄−Mg(BH₄)₂, etc. This review demonstrates that MXenes have exhibited very good catalytic activity on the dehydrogenation and rehydrogenation of various hydrogen storage materials. Since there is barely review focused on the various kinds of hydrogen storage materials, this review will close this gap and aims at making a comprehensive discussion and prospect on the studies of MXenes for regulating the properties of various kinds of hydrogen storage materials.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100073"},"PeriodicalIF":0.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653303","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}