Materials Today Catalysis最新文献

{"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":"2024-12-01","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}

{"title":"An active and durable ammonia cracking layer for direct ammonia protonic ceramic fuel cells","authors":"Liyan Chen,&nbsp;Hua Zhang,&nbsp;Kang Xu,&nbsp;Yangsen Xu,&nbsp;Xirui Zhang,&nbsp;Feng Zhu,&nbsp;Fan He,&nbsp;Yu Chen","doi":"10.1016/j.mtcata.2024.100072","DOIUrl":"10.1016/j.mtcata.2024.100072","url":null,"abstract":"<div><div>Ammonia protonic ceramic fuel cells (NH₃-PCFCs) are highly appealing energy conversion technologies due to their high efficiency, environmental responsibility, and benign safety features. Nonetheless, progress in NH₃-PCFCs is notably impeded by the restricted performance and insufficient lifespan of standard Ni-cermet anodes for ammonia cracking, especially at 550 °C or below. Herein, we report an efficient ammonia cracking layer with a formula of xCo₃O₄/100-xBaZr_0.8Y_0.2O_3-δ (Co/BZY) (x=10, 20, 30), which is deposited onto the Ni-BaZr_0.1Ce_0.7Y_0.1Yb_0.1O_3−δ (BZCYYb) anode to significantly enhance the NH₃ decomposition catalytic activity, thereby improving the performance and durability of NH₃-PCFCs at low temperatures. The cells with the addition of a 20Co/80BZY anode catalytic layer (ACL) exhibit low area-specific resistance (ASR) and promising operational longevity under NH₃ conditions. At 550°C, the NH₃-PCFCs with a 20Co/80BZY ACL exhibit a high peak power density of 0.626 W cm⁻² and promising operation durability. This study provides important guidance for constructing high-performance and durable NH₃-PCFCs.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100072"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593826","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":"Advancements in Amorphous Oxides For Electrocatalytic Carbon Dioxide Reduction","authors":"Youcai Meng ,&nbsp;Junyang Ding ,&nbsp;Yifan Liu ,&nbsp;Guangzhi Hu ,&nbsp;Yanhong Feng ,&nbsp;Yinghong Wu ,&nbsp;Xijun Liu","doi":"10.1016/j.mtcata.2024.100065","DOIUrl":"10.1016/j.mtcata.2024.100065","url":null,"abstract":"<div><div>Electrocatalytic CO₂ reduction (ECR) is a crucial energy conversion technology that transforms CO₂ into value-added chemicals, reducing reliance on fossil fuels and advancing energy transitions. Designing high-performance catalysts is pivotal for widespread adoption of CO₂ reduction reactions, aiming for high activity, selectivity, and stability. Amorphous oxides represent a burgeoning frontier in this field, attracting attention due to their abundant active sites that refine the catalyst structure-performance relationship. This paper aims to provide an overview of recent advances in using amorphous oxides for ECR. We begin by introducing the basic theory of electrocatalytic CO₂ reduction, followed by discussing current synthesis approaches for amorphous oxides in CO₂ reduction, focusing on optimization strategies for these catalysts. Finally, we address challenges and future perspectives of amorphous oxides in ECR, aiming to foster the development of more efficient catalyst designs.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100065"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320117","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":"One-step synthesis of fluorine-functionalized intercalated graphene with adjustable layer spacing for both enhanced physical and chemical hydrogen storage","authors":"Chaojie Liu ,&nbsp;Yongyang Zhu ,&nbsp;Anqi Zu ,&nbsp;Yike Liu ,&nbsp;Zhiyang Zhang ,&nbsp;Junjie Guo ,&nbsp;Chuo Lian ,&nbsp;Muen Zou ,&nbsp;Shun Wang","doi":"10.1016/j.mtcata.2024.100074","DOIUrl":"10.1016/j.mtcata.2024.100074","url":null,"abstract":"<div><div>Graphene-based materials with large specific surface area, strong stability and easy adjustability attract considerable attention in the field of hydrogen storage; however, they suffer from poor hydrogen adsorption ability as direct physical adsorbents or limited modification effect as catalytic supporters of chemical hydrides, blamed to tightly stacked layer structure and chemical inertness. Structural engineering and functional decoration on graphene have been proven to be effective strategies for enhancing both physical and chemical hydrogen storage performances, but there is still lack of simple and flexible method to achieve their synergy. Here for the first time, we develop a fluorine-functionalized intercalated graphene with adjustable layer spacing by one-step solvothermal process, using fluorinated organic molecules as both intercalation and function agents. By the virtue of expanded interlayer and high-electronegative fluorine, it shows polarization-enhanced physisorption ability. Moreover, when using it as the supporter for LiBH₄, the operation temperature, reaction kinetics and cyclic stability of the whole system are greatly improved, attributed to the intrinsic catalysis of carbonaceous materials and the destabilization induced by fluorine substitution. This work provides new views for structural and functional co-design in graphene derivate, and brings hope for their practical application for hydrogen storage.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100074"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653304","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":"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":"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":"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":"2024-12-01","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":"In situ photothermal catalytic cell for X-ray absorption fine structure spectroscopy measurement","authors":"Bingbao Mei ,&nbsp;Di Shen ,&nbsp;Yao Wei ,&nbsp;Jingyuan Ma ,&nbsp;Fanfei Sun","doi":"10.1016/j.mtcata.2024.100071","DOIUrl":"10.1016/j.mtcata.2024.100071","url":null,"abstract":"<div><div>The burgeoning field of photothermal catalysis has garnered increasing interest due to the synergistic effects of light and thermal activation. Understanding the intrinsic reaction dynamics and structural evolution during the photothermal catalytic process is crucial for the design of effective photothermal devices and catalysts, as well as for optimizing photothermal performance. <em>In situ</em> X-ray absorption fine structure (XAFS) spectroscopy under operational conditions provides a powerful tool for revealing deep insights into atomic and electronic structures. In this study, we designed and constructed a multifunctional <em>in situ</em> photothermal catalytic cell for XAFS measurement, incorporating gas flow, optical sensing, temperature control, and monitoring. We detail the systematic design of the cell, facilitating the further development of portable and effective devices. To validate the cell’s performance, we used commercial WO₃ powder as a reference and obtained high-quality XAFS spectra under the influence of light and heat; we also explored the enhanced charge separation efficiency and the consequent improvement in reaction kinetics due to light irradiation. This study underscores the critical role of <em>in situ</em> cells in operational settings and offers a novel perspective on the mechanisms underlying photothermal reactions.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100071"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537988","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}