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One-step synthesis of fluorine-functionalized intercalated graphene with adjustable layer spacing for both enhanced physical and chemical hydrogen storage 一步合成具有可调层间距的氟功能化插层石墨烯,增强物理和化学储氢能力
Materials Today Catalysis Pub Date : 2024-11-06 DOI: 10.1016/j.mtcata.2024.100074
Chaojie Liu , Yongyang Zhu , Anqi Zu , Yike Liu , Zhiyang Zhang , Junjie Guo , Chuo Lian , Muen Zou , Shun Wang
{"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 LiBH<sub>4</sub>, 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":"2024-11-06","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}
引用次数: 0
An active and durable ammonia cracking layer for direct ammonia protonic ceramic fuel cells 用于直接氨质子陶瓷燃料电池的活性持久氨裂解层
Materials Today Catalysis Pub Date : 2024-10-31 DOI: 10.1016/j.mtcata.2024.100072
Liyan Chen, Hua Zhang, Kang Xu, Yangsen Xu, Xirui Zhang, Feng Zhu, Fan He, Yu Chen
{"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 (NH<sub>3</sub>-PCFCs) are highly appealing energy conversion technologies due to their high efficiency, environmental responsibility, and benign safety features. Nonetheless, progress in NH<sub>3</sub>-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 xCo<sub>3</sub>O<sub>4</sub>/100-xBaZr<sub>0.8</sub>Y<sub>0.2</sub>O<sub>3-δ</sub> (Co/BZY) (x=10, 20, 30), which is deposited onto the Ni-BaZr<sub>0.1</sub>Ce<sub>0.7</sub>Y<sub>0.1</sub>Yb<sub>0.1</sub>O<sub>3−δ</sub> (BZCYYb) anode to significantly enhance the NH<sub>3</sub> decomposition catalytic activity, thereby improving the performance and durability of NH<sub>3</sub>-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 NH<sub>3</sub> conditions. At 550°C, the NH<sub>3</sub>-PCFCs with a 20Co/80BZY ACL exhibit a high peak power density of 0.626 W cm<sup>−2</sup> and promising operation durability. This study provides important guidance for constructing high-performance and durable NH<sub>3</sub>-PCFCs.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100072"},"PeriodicalIF":0.0,"publicationDate":"2024-10-31","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}
引用次数: 0
In situ photothermal catalytic cell for X-ray absorption fine structure spectroscopy measurement 用于 X 射线吸收精细结构光谱测量的原位光热催化电池
Materials Today Catalysis Pub Date : 2024-10-28 DOI: 10.1016/j.mtcata.2024.100071
Bingbao Mei , Di Shen , Yao Wei , Jingyuan Ma , Fanfei Sun
{"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 WO<sub>3</sub> 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":"2024-10-28","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}
引用次数: 0
Exploring complete catalytic cycle of methane oxidation to methanol on Cu2O2 stabilized within MIL-53(Al) framework: A combined DFT and microkinetic study 探索在 MIL-53(Al)框架内稳定的 Cu2O2 上甲烷氧化成甲醇的完整催化循环:DFT 和微动力学联合研究
Materials Today Catalysis Pub Date : 2024-10-23 DOI: 10.1016/j.mtcata.2024.100070
Santhanamoorthi Nachimuthu, Chen-Wei Yeh, Chi-You Liu, Mao-Sheng Su, Jyh-Chiang Jiang
{"title":"Exploring complete catalytic cycle of methane oxidation to methanol on Cu2O2 stabilized within MIL-53(Al) framework: A combined DFT and microkinetic study","authors":"Santhanamoorthi Nachimuthu,&nbsp;Chen-Wei Yeh,&nbsp;Chi-You Liu,&nbsp;Mao-Sheng Su,&nbsp;Jyh-Chiang Jiang","doi":"10.1016/j.mtcata.2024.100070","DOIUrl":"10.1016/j.mtcata.2024.100070","url":null,"abstract":"<div><div>Although inspiration from copper-based natural enzymes has shown promise in improving catalyst design for methane-to-methanol (MTM) oxidation, high productivity, and selectivity under mild conditions remain a significant challenge. This study constructs the dinuclear copper (Cu<sub>2</sub>) species stabilized within the metal-organic framework (MOF), MIL-53(Al), containing Cu as efficient catalytic sites and explores the ability of different oxidants (O<sub>2</sub>, N<sub>2</sub>O, and H<sub>2</sub>O<sub>2</sub>) to oxidize Cu<sub>2</sub> into the dicopper-oxo (Cu<sub>2</sub>O<sub>2</sub>) species using density functional theory (DFT) calculations. Our results indicate the kinetic and thermodynamic favorability of Cu<sub>2</sub>O<sub>2</sub> species formation using O<sub>2</sub> as an oxidant within the MIL-53(Al) framework. Furthermore, the thermal stability of Cu<sub>2</sub>O<sub>2</sub>/MIL-53(Al) has been verified via ab initio molecular dynamics (AIMD) calculations. The kinetics of the complete MTM oxidation cycle over Cu<sub>2</sub>O<sub>2</sub>/MIL-53(Al) have been studied using both DFT and microkinetic simulation methods. The present study predicts that the C-H activation on the Cu<sub>2</sub>O<sub>2</sub>/MIL-53(Al) has a low free energy barrier (0.77 eV) and that the high stability of CH<sub>3</sub> and its very low free energy barrier in the C-O coupling step favors the methanol formation over the formaldehyde. More importantly, Cu<sub>2</sub>O<sub>2</sub>/MIL-53(Al) exhibits high methanol selectivity owing to the inhibition of CH<sub>3</sub> dehydrogenation and low methanol desorption energy (0.21 eV). Microkinetic simulations confirm the methanol production under relatively mild reaction conditions (200–280 K and 1 bar). This work provides insights into the feasibility of selective MTM oxidation over this family of MOF under mild conditions.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100070"},"PeriodicalIF":0.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142532271","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}
引用次数: 0
Mo2Ti2C3TX MXene performance in catalytic CO2 hydrogenation and its promotion with single Pt atoms Mo2Ti2C3TX MXene 在催化二氧化碳加氢中的性能及其与单个铂原子的促进作用
Materials Today Catalysis Pub Date : 2024-10-16 DOI: 10.1016/j.mtcata.2024.100069
Yilong Yan , Franck Morfin , Bei-Bei Xiao , Hazar Guesmi , Mimoun Aouine , Mathieu Prévot , Sophie Morisset , Stéphane Célérier , Laurent Piccolo
{"title":"Mo2Ti2C3TX MXene performance in catalytic CO2 hydrogenation and its promotion with single Pt atoms","authors":"Yilong Yan ,&nbsp;Franck Morfin ,&nbsp;Bei-Bei Xiao ,&nbsp;Hazar Guesmi ,&nbsp;Mimoun Aouine ,&nbsp;Mathieu Prévot ,&nbsp;Sophie Morisset ,&nbsp;Stéphane Célérier ,&nbsp;Laurent Piccolo","doi":"10.1016/j.mtcata.2024.100069","DOIUrl":"10.1016/j.mtcata.2024.100069","url":null,"abstract":"<div><div>Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub>T<sub>x</sub> MXene materials, bare or loaded with strongly anchored single Pt atoms, were investigated using various methods, including STEM, XPS, XAS and DFT calculations. Upon Pt impregnation, the delaminated Mo-rich MXene surface undergoes partial oxidation, which is reversed by an H<sub>2</sub> thermal treatment at 400 °C. The optimized MXene shows high catalytic activity for CO<sub>2</sub> hydrogenation to CO and smaller amounts of methane and methanol. Around and above the pretreatment temperature of 400 °C, the MXene is gradually defunctionalized from O- and F-containing groups and depleted in carbidic carbon, leading to deactivation. Single Pt atoms are cationic after impregnation, and reduce upon H<sub>2</sub> treatment, filling surface Mo vacancies. Pt addition increases the MXene activity, in particular by facilitating H<sub>2</sub> dissociation, but has little effect on the single-atom catalyst selectivity and on the rate dependence upon reactant partial pressures. The lowest Pt loading leads to the highest turnover frequency, indicating that the MXene surface sites are key to CO<sub>2</sub> activation.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100069"},"PeriodicalIF":0.0,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142532270","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}
引用次数: 0
Advanced in situ characterization techniques for studying the dynamics of solid-liquid interface in electrocatalytic reactions 研究电催化反应中固液界面动态的先进原位表征技术
Materials Today Catalysis Pub Date : 2024-10-15 DOI: 10.1016/j.mtcata.2024.100068
Shiyu Li , Jin Yan , Xiaoxia Chen , Chudi Ni , Yiwen Chen , Meihuan Liu , Hui Su
{"title":"Advanced in situ characterization techniques for studying the dynamics of solid-liquid interface in electrocatalytic reactions","authors":"Shiyu Li ,&nbsp;Jin Yan ,&nbsp;Xiaoxia Chen ,&nbsp;Chudi Ni ,&nbsp;Yiwen Chen ,&nbsp;Meihuan Liu ,&nbsp;Hui Su","doi":"10.1016/j.mtcata.2024.100068","DOIUrl":"10.1016/j.mtcata.2024.100068","url":null,"abstract":"<div><div>The reaction kinetics at the solid-liquid interface significantly affects the rate of electrocatalytic reactions. At the atomic and molecular levels, accurately identifying the structural evolution of active sites, the evolution of reaction intermediates, and the mechanism of catalytic reactions play an important role for designing efficient catalysts in electrochemical energy storage and conversion technologies, though it remains highly challenging. This review systematically scrutinizes recent achievements in the dynamic investigation of solid-liquid electrochemical interfaces during electrocatalysis, using <em>in situ</em> synchrotron X-ray absorption fine structure (SR-XAFS) and synchrotron Fourier-transform infrared spectroscopy (SR-FTIR). It provides a comprehensive discussion on the continuous development of <em>in situ</em> SR-XAFS and SR-FTIR, with particular emphasis on the content of multi-scale monitoring the structural evolution of active centers. Moreover, the review highlights the unique and powerful role of correlative SR-XAFS/FTIR in exploring the dynamic of solid-liquid electrochemical interfaces in mainstream research areas such as electrocatalytic water splitting, oxygen reduction, nitrate reduction, and carbon dioxide reduction. Finally, the challenges and prospects of identifying the kinetic behavior of solid-liquid electrocatalytic interfaces in electrocatalytic materials under working conditions. This review aims to offer ample, reliable, and complementary information on the dynamic evolution of the interface during the electrocatalytic process, thereby guiding the rational design of advanced catalytic materials with outstanding activity, selectivity, and stability.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100068"},"PeriodicalIF":0.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441771","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}
引用次数: 0
Engrossing structural developments of double perovskites for viable energy applications 用于可行能源应用的双过氧化物令人着迷的结构发展
Materials Today Catalysis Pub Date : 2024-10-09 DOI: 10.1016/j.mtcata.2024.100067
Mariyam Saniya , Iqra Sadiq , Saman Shaheen , Sarvari Khatoon , Tokeer Ahmad
{"title":"Engrossing structural developments of double perovskites for viable energy applications","authors":"Mariyam Saniya ,&nbsp;Iqra Sadiq ,&nbsp;Saman Shaheen ,&nbsp;Sarvari Khatoon ,&nbsp;Tokeer Ahmad","doi":"10.1016/j.mtcata.2024.100067","DOIUrl":"10.1016/j.mtcata.2024.100067","url":null,"abstract":"<div><div>Investigation for novel functional catalysts illustrates an essential direction in advancing and researching renewable energy. On account of their specific compositional and structural tunability and remarkable stability, double perovskites have been extensively examined as a category of versatile compounds for applications in photocatalysis and electrocatalysis, highlighting them as a promising candidate for catalytic performance and stability. In this review article, we have elaborated on the tunability of double perovskites in terms of their compositions and structures, which proved to be tremendous features for double perovskites in diverse applications. Furthermore, the fabrication methods and the performance optimization comprising band gap tuning of double perovskites have been discussed. The current status of double perovskites for photocatalytic and electrocatalytic H<sub>2</sub> production and CO<sub>2</sub> reduction, with recent reports, has also been reviewed. Lastly, the challenges and future outlook are put forward.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100067"},"PeriodicalIF":0.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445410","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}
引用次数: 0
(Ru-)Mo2C (MXene) catalysts for ammonia synthesis: From Haber-Bosch to chemical looping processes 用于合成氨的 (Ru-)Mo2C (MXene) 催化剂:从哈伯-博什到化学循环过程
Materials Today Catalysis Pub Date : 2024-09-23 DOI: 10.1016/j.mtcata.2024.100066
Charlotte Croisé, Xavier Courtois, Stéphane Célérier, Lola Loupias, Christine Canaff, Julie Rousseau, Nicolas Bion, Fabien Can
{"title":"(Ru-)Mo2C (MXene) catalysts for ammonia synthesis: From Haber-Bosch to chemical looping processes","authors":"Charlotte Croisé,&nbsp;Xavier Courtois,&nbsp;Stéphane Célérier,&nbsp;Lola Loupias,&nbsp;Christine Canaff,&nbsp;Julie Rousseau,&nbsp;Nicolas Bion,&nbsp;Fabien Can","doi":"10.1016/j.mtcata.2024.100066","DOIUrl":"10.1016/j.mtcata.2024.100066","url":null,"abstract":"<div><div>This study investigated (Ru-)Mo<sub>2</sub>C (MXene) materials for ammonia thermo-catalytic synthesis under atmospheric or moderate pressure. Under a H<sub>2</sub>-N<sub>2</sub> (3:1) flow, the Mo<sub>2</sub>C MXene phase showed limited activity in ammonia synthesis at atmospheric pressure at 400 °C (0.01 mmol h⁻¹ g⁻¹), which increased significantly with temperature and pressure, reaching 2.07 mmol h⁻¹ g⁻¹ at 500°C and under 5 bar. Interestingly, Mo-based MXene was able to generate an appreciable quantity of ammonia without promoters such as ruthenium, the most active metal for the ammonia synthesis reaction. Unexpectedly, the addition of Ru to Mo<sub>2</sub>C did not enhance its activity. The nitriding of the MXene under NH<sub>3</sub> or N<sub>2</sub> was then performed and characterized. A thermal treatment under NH<sub>3</sub> (600 °C, 5 bar) was efficient and, interestingly, nitriding also occurred in a lower extent under N<sub>2</sub> (600 °C, 5 bar) for the sample containing ruthenium. The N-containing MXene produced ammonia under pure H<sub>2</sub> flow from temperatures lower than 250 °C. Consecutive nitriding treatments and ammonia production under pure H<sub>2</sub> were successfully achieved and demonstrated for 5 cycles. This result is promising for chemical looping ammonia production process. This work highlights essential aspects that should be explored for future advances to consider using Mo<sub>2</sub>CT<sub>x</sub> MXene for the efficient thermal production of ammonia.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100066"},"PeriodicalIF":0.0,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320116","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}
引用次数: 0
Advancements in Amorphous Oxides For Electrocatalytic Carbon Dioxide Reduction 用于电催化二氧化碳还原的无定形氧化物的研究进展
Materials Today Catalysis Pub Date : 2024-09-21 DOI: 10.1016/j.mtcata.2024.100065
Youcai Meng , Junyang Ding , Yifan Liu , Guangzhi Hu , Yanhong Feng , Yinghong Wu , Xijun Liu
{"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 CO<sub>2</sub> reduction (ECR) is a crucial energy conversion technology that transforms CO<sub>2</sub> into value-added chemicals, reducing reliance on fossil fuels and advancing energy transitions. Designing high-performance catalysts is pivotal for widespread adoption of CO<sub>2</sub> 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 CO<sub>2</sub> reduction, followed by discussing current synthesis approaches for amorphous oxides in CO<sub>2</sub> 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":"2024-09-21","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}
引用次数: 0
Synergistic boosting the electrooxidation of biomass-based 5-hydroxymethylfurfural on cellulose-derived Co3O4/N-doped carbon catalysts 纤维素衍生 Co3O4/N 掺杂碳催化剂对生物质基 5-羟甲基糠醛电氧化的协同促进作用
Materials Today Catalysis Pub Date : 2024-09-19 DOI: 10.1016/j.mtcata.2024.100062
Haixin Sun , Yingying Gao , Mengyuan Chen , Ming Li , Qinqin Xia , Yongzhuang Liu , Juan Meng , Shuo Dou , Haipeng Yu
{"title":"Synergistic boosting the electrooxidation of biomass-based 5-hydroxymethylfurfural on cellulose-derived Co3O4/N-doped carbon catalysts","authors":"Haixin Sun ,&nbsp;Yingying Gao ,&nbsp;Mengyuan Chen ,&nbsp;Ming Li ,&nbsp;Qinqin Xia ,&nbsp;Yongzhuang Liu ,&nbsp;Juan Meng ,&nbsp;Shuo Dou ,&nbsp;Haipeng Yu","doi":"10.1016/j.mtcata.2024.100062","DOIUrl":"10.1016/j.mtcata.2024.100062","url":null,"abstract":"<div><div>Catalysts play a pivotal role in the efficient conversion of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) through electrochemical oxidation. In this work, a cost-effective and highly efficient cobalt-based electrocatalyst for the synthesis of bio-based carboxylic acids was reported. By the employment of cellulose, which was dissolved in the alkaline-urea with cobalt ion, as the precursor, it derived a carbon-coated Co<sub>3</sub>O<sub>4</sub> (Co<sub>3</sub>O<sub>4</sub>@NC) catalyst with a high specific surface area and rich porous structure. When utilized in the electrocatalytic conversion of HMF to FDCA, the catalyst exhibited exceptional yields and Faradaic efficiency which surpassed 95 %. In-situ Raman spectra unveiled that a dual-pathway process occurred on this catalyst, with part of Co<sub>3</sub>O<sub>4</sub> serving as active sites for HMF adsorption, while other Co<sub>3</sub>O<sub>4</sub> transformed into CoOOH during the reaction. This dual-pathway electrocatalysis facilitated the highly efficient conversion of HMF. Additionally, using bio-based alcohols/aldehydes as the feedstocks, eight carboxylic acids were successfully synthesized with yields ranging from 91.5 % to 99 %. This study presents a highly efficient electrocatalyst derived from biomass, enabling diverse bio-based carboxylic acid production with significant potential for sustainable chemical synthesis.</div></div>","PeriodicalId":100892,"journal":{"name":"Materials Today Catalysis","volume":"7 ","pages":"Article 100062"},"PeriodicalIF":0.0,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320114","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}
引用次数: 0
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