Materials Today Catalysis最新文献

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Materials Today Catalysis Pub Date : 2025-06-01 DOI: 10.1016/S2949-754X(25)00021-3

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Allying cobalt nanoclusters with carbon nanofibers for selectively electrocatalytic hydrogenation of unsaturated aldehyde with water as hydrogen source 以水为氢源，钴纳米团簇与碳纳米纤维选择性电催化不饱和醛加氢

Materials Today Catalysis Pub Date : 2025-06-01 DOI: 10.1016/j.mtcata.2025.100104

Xinyu Yang , Sheng-Hua Zhou , Xiaofang Li , Xin-Tao Wu , Qi-Long Zhu

{"title":"Allying cobalt nanoclusters with carbon nanofibers for selectively electrocatalytic hydrogenation of unsaturated aldehyde with water as hydrogen source","authors":"Xinyu Yang , Sheng-Hua Zhou , Xiaofang Li , Xin-Tao Wu , Qi-Long Zhu","doi":"10.1016/j.mtcata.2025.100104","DOIUrl":"10.1016/j.mtcata.2025.100104","url":null,"abstract":"<div><div>The electrocatalytic hydrogenation of α, β-unsaturated aldehydes has attracted significant attention, yet the design of electrocatalysts with selective adsorption over C<img>C or C<img>O bond remaining a challenging task. In this study, the Co nanoclusters anchored onto the nitrogen-doped porous carbon nanofibers were elaborately fabricated for efficient electrocatalytic hydrogenation. A kinetically driven mono-micelle-oriented self-assembly method was applied to synthesize the polymer nanofibers as the accommodation for Co<sup>2 +</sup>. The stepwise pyrolysis of Co<sup>2+</sup>/polymer nanofibers with dicyandiamide yielded the evenly distributed Co nanoclusters with an average size of ∼4 nm over the nitrogen-doped porous carbon nanofibers. Benefited from the high activity of the Co nanoclusters and their rapid electron communication with the nitrogen-doped porous carbon nanofibers, this electrocatalyst demonstrated excellent performance in the selectively electrocatalytic hydrogenation of cinnamaldehyde to hydrocinnamaldehyde, achieving a high selectivity of 90.9 % and a conversion of 68.2 % at 12 mA cm<sup>−2</sup>. The further in-situ spectroscopy analysis and density functional theory calculations revealed the more preferred adsorption of C<img>C bond and easier water dissociation to give the active H atoms over the Co nanoclusters, which shed light on the hydrogenation mechanism over this electrocatalyst. Our study can provide a new insight in catalyst design for electrocatalytic hydrogenation reaction.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100104"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Microelectrochemical investigation of electrocatalytic hydrogen evolution reaction 电催化析氢反应的微电化学研究

Materials Today Catalysis Pub Date : 2025-06-01 DOI: 10.1016/j.mtcata.2025.100106

Kai Bao , Cong Ma , Lingzhi Wang , Ruijie Li , Wenbin Wang , Zongxiao Wu , Wei Zhai , Jingkun Wu , Chengxuan Ke , Zhixiang Tao , Zhuangzhuang Yin , Junlei Qi , Qiyuan He

{"title":"Microelectrochemical investigation of electrocatalytic hydrogen evolution reaction","authors":"Kai Bao , Cong Ma , Lingzhi Wang , Ruijie Li , Wenbin Wang , Zongxiao Wu , Wei Zhai , Jingkun Wu , Chengxuan Ke , Zhixiang Tao , Zhuangzhuang Yin , Junlei Qi , Qiyuan He","doi":"10.1016/j.mtcata.2025.100106","DOIUrl":"10.1016/j.mtcata.2025.100106","url":null,"abstract":"<div><div>Electrocatalytic hydrogen evolution reaction (HER), as a green and sustainable method of hydrogen production, has attracted wide attention in recent years. Designing electrocatalysts with high efficiency, low-cost and stability for HER is becoming increasingly promising and feasible. The emerging microelectrochemical investigation has proven to be a highly effective tool in uncovering complex catalytic mechanism, particularly in HER of single-entity nanocatalysts. Among the various microelectrochemical methods, ultramicroelectrode (UME) and on-chip electrochemical microcell (OCEM) are mostly widely regarded. Both techniques have been extensively employed to analysis the HER process of single-entity nanomaterials, giving unique perspectives inaccessible to conventional electrochemical methods. This review outlines the principles and compares the similarities and differences among UME, OCEM and conventional electrochemical methods. The applications of UME and OCEM investigation of specific nanocatalyts, especially 2D materials, are comprehensively reviewed. Finally, challenges and outlook of microelectrochemical methods in electrocatalysis and beyond are discussed.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100106"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Materials Today Catalysis Pub Date : 2025-06-01 DOI: 10.1016/S2949-754X(25)00020-1

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Superior reversible hydrogen storage in eutectic LiBH4–KBH4 system via Ni–based catalysts synergized with graphene 镍基催化剂与石墨烯协同作用在LiBH4-KBH4共晶体系中具有优异的可逆储氢性能

Materials Today Catalysis Pub Date : 2025-05-27 DOI: 10.1016/j.mtcata.2025.100105

Shanqing Qu , Yaxiong Yang , Mingxia Gao , Zhenglong Li , Wenping Sun , Chu Liang , Xin Zhang , Xiaoyu Zhang , Lingchao Zhang , Ruizi Wang , Hongge Pan

{"title":"Superior reversible hydrogen storage in eutectic LiBH4–KBH4 system via Ni–based catalysts synergized with graphene","authors":"Shanqing Qu , Yaxiong Yang , Mingxia Gao , Zhenglong Li , Wenping Sun , Chu Liang , Xin Zhang , Xiaoyu Zhang , Lingchao Zhang , Ruizi Wang , Hongge Pan","doi":"10.1016/j.mtcata.2025.100105","DOIUrl":"10.1016/j.mtcata.2025.100105","url":null,"abstract":"<div><div>Light metal borohydrides are promising candidates for solid–state hydrogen storage due to their high hydrogen storage capacities; however, the reversibility and kinetics of de/hydrogenation still require significant improvement. The present work focuses on the improvement of the hydrogen storage properties of the eutectic borohydride system of LiBH<sub>4</sub>–KBH<sub>4</sub> (Li/KBH<sub>4</sub>). A layered composite of graphene supported with ultrafine Ni<sub>3</sub>B nanoparticles (Ni<sub>3</sub>B/G) is designed and synthesized, which acts as catalyst and confinement carrier for Li/KBH<sub>4</sub>. Assisted with a heating of the mixture of Li/KBH<sub>4</sub> and Ni<sub>3</sub>B/G to 110 °C in the molten state of Li/KBH<sub>4</sub>, an interlayer structure of graphene dispersed with Ni<sub>3</sub>B nanoparticles and sheet–like Li/KBH<sub>4</sub> is constructed. The graphene effectively disperses Ni<sub>3</sub>B nanoparticles and confines the Li/KBH<sub>4</sub> in its interlayers. The confinement of Li/KBH<sub>4</sub> and the catalysis of Ni<sub>3</sub>B nanoparticles, assisted with the high thermal conductivity of graphene, contribute synergistically the hydrogen storage of Li/KBH<sub>4</sub>. The main dehydrogenation peak temperature of the system is lowered to 278 °C. The system can release 8.5 wt% H<sub>2</sub> within 30 min at 350 °C. The capacity retention achieves 81.2 % after 50 cycles. DFT theoretical analysis shows that there is strong charge transfer interaction between Ni<sub>3</sub>B and LiBH<sub>4</sub>/KBH<sub>4</sub>, which destabilizes the [BH<sub>4</sub>]<sup>–</sup> structure and promotes the dehydrogenation. This work provides a new approach for the design of new structural LiBH<sub>4</sub>–based eutectic system with high capacity, low dehydrogenation temperature, high reversibility and long cycling life.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100105"},"PeriodicalIF":0.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144169432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Photocatalytic transformation of organic pollutants and remediation strategies of carbon emissions and nitrogen fixation in inland water 内陆水体有机污染物的光催化转化及碳排放固氮修复策略

Materials Today Catalysis Pub Date : 2025-05-09 DOI: 10.1016/j.mtcata.2025.100103

Masiha Rahman, Saman Shaheen, Tokeer Ahmad

{"title":"Photocatalytic transformation of organic pollutants and remediation strategies of carbon emissions and nitrogen fixation in inland water","authors":"Masiha Rahman, Saman Shaheen, Tokeer Ahmad","doi":"10.1016/j.mtcata.2025.100103","DOIUrl":"10.1016/j.mtcata.2025.100103","url":null,"abstract":"<div><div>Photocatalysis is an environmentally friendly approach and a propitious avenue for addressing water contamination including toxic chemicals, radioactive materials, and nitrate fertilizer. In the past few years, urbanization and industrialization have affected the water quality, causing various environmental hazards. Inland water ecosystems such as lakes, rivers and wetland not only play a vital role in maintaining biodiversity but also provide important sources of GHGs emissions. Despite their significance, the emission from inland water is poorly quantified. This review systematically reveals the sources of carbon and nitrogen emissions, the efficiency and mechanisms of various photocatalysts in degrading a range of organic pollutants, highlighting their potential to reduce environmental toxins significantly. The state-of-the-art and innovative remediation strategies targeting carbon emissions and N<sub>2</sub> fixation have been thoroughly discussed. By consolidating photocatalytic processes with carbon sequestration and N<sub>2</sub> fixation, the review develops a holistic approach to alleviating water quality and mitigating climate change impacts. Finally, the findings concluded with the role of advanced photocatalytic materials and proffering perspectives in promoting sustainable environmental management and ecological health in inland aquatic systems.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100103"},"PeriodicalIF":0.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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VN/Copper foam self-supporting catalyst for efficient electrocatalytic hydrogen peroxide generation 用于高效电催化过氧化氢生成的VN/铜泡沫自支撑催化剂

Materials Today Catalysis Pub Date : 2025-05-09 DOI: 10.1016/j.mtcata.2025.100102

Jiahao Liu , Zhaorui Zhang , Chenshuai Han, Minghui Yang

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Advances in understanding and manipulating electrode wettability for electrocatalytic performance enhancement 提高电催化性能的电极润湿性研究进展

Materials Today Catalysis Pub Date : 2025-05-07 DOI: 10.1016/j.mtcata.2025.100101

Hailing Zhao , Kaijie Ma , Shiqin Gao , Bolun Wang , Yang Wang

{"title":"Advances in understanding and manipulating electrode wettability for electrocatalytic performance enhancement","authors":"Hailing Zhao , Kaijie Ma , Shiqin Gao , Bolun Wang , Yang Wang","doi":"10.1016/j.mtcata.2025.100101","DOIUrl":"10.1016/j.mtcata.2025.100101","url":null,"abstract":"<div><div>In the realm of heterogeneous catalysis, the wettability of the catalyst significantly impacts the interaction between the catalyst surface and reactants or products, thereby playing a pivotal role in determining catalytic performance. Electrocatalytic reactions predominantly occur at multiphase interfaces. As a result, gas-liquid-solid interface mass transfer is of utmost importance during the reaction process. In the electrocatalysis process, for steps including molecular adsorption, desorption, and surface transfer, the modulation of electrode wettability directly influences the behavior of gas bubbles beneath the solution. This affects the gas-liquid-solid interface mass transfer process during electrocatalysis. Consequently, a comprehensive understanding of the principles governing this interfacial interaction is crucial for fundamentally enhancing the efficiency of electrocatalytic reactions. This review summarizes the basic theory of wettability and its relationship with electrocatalytic reactions. It also accentuates some recent advancements in the impact of electrode wettability in heterogeneous electrocatalytic reactions. Finally, the review offers a perspective on the challenges associated with wettability regulation in influencing the electrocatalytic reaction process.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100101"},"PeriodicalIF":0.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Investigating size-dependent selectivity in benzaldehyde reductive amination via Ni nanoparticles 研究镍纳米颗粒在苯甲醛还原胺化反应中的尺寸依赖性选择性

Materials Today Catalysis Pub Date : 2025-04-29 DOI: 10.1016/j.mtcata.2025.100100

Yunong Li , Ching Kit Tommy Wun , Tianxiang Chen , Tsz Woon Benedict Lo

{"title":"Investigating size-dependent selectivity in benzaldehyde reductive amination via Ni nanoparticles","authors":"Yunong Li , Ching Kit Tommy Wun , Tianxiang Chen , Tsz Woon Benedict Lo","doi":"10.1016/j.mtcata.2025.100100","DOIUrl":"10.1016/j.mtcata.2025.100100","url":null,"abstract":"<div><div>Selectivity control is a fundamental focus in catalysis chemistry, as it directly reflects the efficiency and efficacy of catalytic processes. While catalysis often involves intricate and cascade reaction steps using nanoparticle (NP) catalysts, the mechanism behind the size effect of nanoparticles on product selectivity has not been fully explored. We herein prepared a series of Ni-containing zeolitic catalysts in which the Ni NPs are uniformly supported on the mesopores and outer surfaces of H-ZSM-5 zeolites. The dynamic formation of Ni NPs from highly dispersed Ni precursors was monitored using transmission electron microscopy, in-situ X-ray pair distribution function, and in-situ X-ray absorption fine structure analysis. The metal nanoparticle size was carefully controlled between 3.72(5) nm and 11.91(7) by controlling the reduction temperature. We evaluated the catalytic performance of Ni NPs using the reductive amination of benzaldehyde in batch reactors at low temperatures. This reaction inherently favors the formation of a series of products, suffering highly from selectivity issues. Our results revealed a size-dependent behavior in reaction efficiency, with the catalyst achieving the highest catalytic activity (93 % selectivity in primary amine) at a particle size of 5.62(3) nm. This optimal performance is attributed to a balanced interplay between hydrogenation and amination capabilities. These findings highlight the intricate relationship between nanoparticle size and catalytic performance, emphasizing the necessity for precise optimization in catalyst design to enhance selectivity and sustainability in industrial applications.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100100"},"PeriodicalIF":0.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Assessing the photocatalytic activity of visible light active Bi2S3-based nanocomposites for Methylene Blue and Rhodamine B degradation 评价可见光活性bi2s3基纳米复合材料对亚甲基蓝和罗丹明B降解的光催化活性

Materials Today Catalysis Pub Date : 2025-04-05 DOI: 10.1016/j.mtcata.2025.100099

Bachir Yaou Balarabe , Yerkanat N. Kanafin , Kuralay Rustembekkyzy , Imanzhussip Serkul , Meruert A. Nauryzbaeva , Timur Sh. Atabaev

{"title":"Assessing the photocatalytic activity of visible light active Bi2S3-based nanocomposites for Methylene Blue and Rhodamine B degradation","authors":"Bachir Yaou Balarabe , Yerkanat N. Kanafin , Kuralay Rustembekkyzy , Imanzhussip Serkul , Meruert A. Nauryzbaeva , Timur Sh. Atabaev","doi":"10.1016/j.mtcata.2025.100099","DOIUrl":"10.1016/j.mtcata.2025.100099","url":null,"abstract":"<div><div>High levels of organic compounds, notably synthetic dyes like Methylene blue (MB) and Rhodamine B (RhB), in untreated effluents have become a major environmental concern, endangering human health and ecosystems. These dyes are difficult to remove due to their non-biodegradable nature, prompting extensive research in this area. Photocatalysis has emerged as a promising, environmentally friendly method that only requires a light source and a photocatalyst for pollutant degradation. Bismuth sulfide (Bi<sub>2</sub>S<sub>3</sub>) stands out among other photocatalytic materials due to its narrow band gap, strong light absorption in the visible range, and nontoxicity, making it a good candidate to improve the overall photocatalytic efficiency. Therefore, this review article focuses on recent advances in Bi<sub>2</sub>S<sub>3</sub>-based nanocomposites and their role in the effective degradation of organic pollutants, particularly MB and RhB, through enhanced photocatalytic mechanisms.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"9 ","pages":"Article 100099"},"PeriodicalIF":0.0,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0