EES catalysis最新文献_第9页

Zeolite catalysts for non-oxidative ethane dehydrogenation to ethylene 用于非氧化乙烷脱氢制乙烯的沸石催化剂

EES catalysis Pub Date : 2024-03-19 DOI: 10.1039/D4EY00031E

Lu Liu, Liang Wang and Feng-Shou Xiao

{"title":"Zeolite catalysts for non-oxidative ethane dehydrogenation to ethylene","authors":"Lu Liu, Liang Wang and Feng-Shou Xiao","doi":"10.1039/D4EY00031E","DOIUrl":"10.1039/D4EY00031E","url":null,"abstract":"The conversion of ethane to ethylene is crucial for deriving platform chemicals from non-petroleum feedstock. However, it currently relies on steam cracking technology, which involves high temperatures and large reactors. The catalytic dehydrogenation of ethane (EDH) could resolve these issues, but its efficiency is often limited due to thermodynamics, leading to low conversion and coke formation. These challenges make it difficult for catalytic EDH to compete economically with steam cracking. Recent studies show that rational design of catalysts, such as fixing metal nanoclusters within zeolite micropores or isolated metal sites on the zeolite framework, can enhance catalytic performances. These designs lower energy barriers for carbon–hydrogen bond activation, hinder deep dehydrogenation to coke, and provide sinter-resistant metal sites for durability. This review discusses the pivotal role of zeolite structures in catalysis and sums up the principles of catalyst design for efficient non-oxidative EDH. It aims to help in the development of more efficient zeolite catalysts and enhance the viability of catalytic EDH for potential industrialization.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 4","pages":" 923-931"},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d4ey00031e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140170934","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

Insights into zero-gap CO2 electrolysis at elevated temperatures† 对高温零间隙二氧化碳电解的见解

EES catalysis Pub Date : 2024-02-28 DOI: 10.1039/D3EY00224A

Carlos A. Giron Rodriguez, Nishithan C. Kani, Asger B. Moss, Bjørt Oladottir Joensen, Sahil Garg, Wanyu Deng, Terry Wilson, John R. Varcoe, Ib Chorkendorff and Brian Seger

{"title":"Insights into zero-gap CO2 electrolysis at elevated temperatures†","authors":"Carlos A. Giron Rodriguez, Nishithan C. Kani, Asger B. Moss, Bjørt Oladottir Joensen, Sahil Garg, Wanyu Deng, Terry Wilson, John R. Varcoe, Ib Chorkendorff and Brian Seger","doi":"10.1039/D3EY00224A","DOIUrl":"10.1039/D3EY00224A","url":null,"abstract":"Renewable-powered CO2 electrolysis (CO2E) is a promising strategy to reduce greenhouse gas emissions by transforming CO2 into valuable feedstocks. While recent studies in this field have focused on developing efficient catalyst materials or electrolyzer engineering, the operating temperature's effect has not been systematically examined for zero-gap electrolyzers. To examine the effects of operating temperature, a systematic investigation was conducted using zero-gap (MEA) Cu-based GDEs across a range from room temperature to 80 °C. Our results indicate that increasing the temperature improves CO2 mass transport, ionic conductivity, and water management, allowing for high catalytic activity toward CO2E. At operating temperatures greater than 50 °C, selectivity shifted substantially towards CO, with surface enhanced infrared absorption spectroscopy (SEIRAS) showing a concomitant decrease in surface CO coverage at and above this temperature. As commercial electrolyzers will operate at elevated temperatures due to ohmic heating, they may produce a significantly different product distribution than the room-temperature electrolysis prevalent in the literature. Experiments at elevated temperatures demonstrated improved results for CO2E with industrially relevant current densities (150 mA cm−2) over an extended operational period (>200 hours). Additionally, we found that the heating method strongly affects product selectivity and the electrolyzer's performance, emphasizing the need to ensure proper heating while working under these reaction systems.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 850-861"},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00224a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139987633","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 and opportunities in piezo-(photo)catalytic synthesis of value-added chemicals 压电（光）催化合成高附加值化学品的进展与机遇

EES catalysis Pub Date : 2024-02-28 DOI: 10.1039/D3EY00313B

Weiliang Qi, Yaping Fu, Enbo Liu, Zhixing Cheng, Yuxiu Sun, Siqi Liu and Minghui Yang

引用次数: 0

Direction of oxygen evolution reaction electrocatalyst evaluation for an anion exchange membrane CO2 electrolyzer 阴离子交换膜二氧化碳电解槽氧进化反应电催化剂的评估方向

EES catalysis Pub Date : 2024-02-21 DOI: 10.1039/D3EY00314K

Seontaek Kwon, Tae-Hoon Kong, Namgyoo Park, Pandiarajan Thangavel, Hojeong Lee, Seokmin Shin, Jihoo Cha and Youngkook Kwon

{"title":"Direction of oxygen evolution reaction electrocatalyst evaluation for an anion exchange membrane CO2 electrolyzer","authors":"Seontaek Kwon, Tae-Hoon Kong, Namgyoo Park, Pandiarajan Thangavel, Hojeong Lee, Seokmin Shin, Jihoo Cha and Youngkook Kwon","doi":"10.1039/D3EY00314K","DOIUrl":"10.1039/D3EY00314K","url":null,"abstract":"CO2 electrolysis in membrane-electrode assemblies (MEAs) has come up one step closer to commercialization through compact cell design and high-current operation. However, while both cathodic and anodic reactions significantly affect the overall cell efficiency, the anodic oxygen evolution reaction (OER) has received much less attention compared to the cathodic CO2 reduction reaction (CO2RR). More importantly, OER electrocatalysts for CO2 electrolysis are being developed independently of system design, despite their interconnected nature. Since the aqueous testing systems in which OER electrocatalysts have been developed do not reflect the complex local anodic environment inside an anion exchange membrane CO2 electrolyzer (AEMCE), electrocatalysts sensitive to local chemistry may have been optimized for incorrect operating conditions. Based on a comprehensive understanding of the local anodic environment inside the AEMCE, in this perspective, we scrutinize the limitations of conventional OER electrocatalyst development resulting from the discrepancy between aqueous testing systems and the existing MEA-type systems. To bridge these gaps, we suggest three electrocatalyst evaluation platforms that integrate reference electrodes to existing AEMCEs for reliable and genuine OER electrocatalyst assessment.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 4","pages":" 911-922"},"PeriodicalIF":0.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00314k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139910353","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 bifunctional catalyst design for rechargeable zinc–air batteries 用于锌-空气充电电池的先进双功能催化剂设计

EES catalysis Pub Date : 2024-02-19 DOI: 10.1039/D4EY00014E

Tao Wang, Zezhong Shi, Faxing Wang, Jiarui He, Yiren Zhong, Yuan Ma, Zhi Zhu, Xin-Bing Cheng, Kenneth I. Ozoemena and Yuping Wu

{"title":"Advanced bifunctional catalyst design for rechargeable zinc–air batteries","authors":"Tao Wang, Zezhong Shi, Faxing Wang, Jiarui He, Yiren Zhong, Yuan Ma, Zhi Zhu, Xin-Bing Cheng, Kenneth I. Ozoemena and Yuping Wu","doi":"10.1039/D4EY00014E","DOIUrl":"10.1039/D4EY00014E","url":null,"abstract":"Zinc–air batteries have attracted more attention due to their high energy density, high safety, low cost, and environmental friendliness. Nevertheless, sluggish oxygen reaction kinetics at the air electrode seriously compromises their power density and cycling stability. As one of the main components, the catalyst significantly impacts the performance of zinc–air batteries. Finding high-performance bifunctional catalysts for both the oxygen reduction reaction and oxygen evolution reaction is of great importance for the practical application of zinc–air batteries. In this review, the history, merits and challenges of zinc–air batteries are introduced, the working principle of zinc–air batteries and the mechanisms of ORR and OER in air electrodes are analyzed deeply, and the research status of bifunctional catalysts that promote both ORR and OER kinetics is systematically reviewed. Finally, the pending problems that need to be solved in future research and the practical application of bifunctional catalysts in zinc–air batteries are discussed. This review aims to provide a valuable reference for the development of bifunctional catalysts for zinc–air batteries.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 696-726"},"PeriodicalIF":0.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d4ey00014e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139904072","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

A comparative overview of the electrochemical valorization and incorporation of CO2 in industrially relevant compounds 工业相关化合物中二氧化碳的电化学价值化和掺入比较概述

EES catalysis Pub Date : 2024-02-16 DOI: 10.1039/D4EY00005F

Jef R. Vanhoof, Sander Spittaels and Dirk E. De Vos

{"title":"A comparative overview of the electrochemical valorization and incorporation of CO2 in industrially relevant compounds","authors":"Jef R. Vanhoof, Sander Spittaels and Dirk E. De Vos","doi":"10.1039/D4EY00005F","DOIUrl":"10.1039/D4EY00005F","url":null,"abstract":"Climate change is a critical global challenge that requires urgent action to reduce greenhouse gas emissions, including carbon dioxide (CO2). While essential efforts are being made to reduce emissions by developing new manufacturing processes, it is also crucial to scrutinize sustainable uses for the CO2 that is already produced in excess. The electrochemical CO2 reduction reaction (eCO2RR) is a highly promising and versatile approach for converting CO2 into valuable base chemicals and fuels, effectively decarbonizing the chemical industry. New methodologies and electrocatalysts in this area are increasingly being investigated, emphasizing the necessary transition to a more sustainable future. In this review, we focus on the eCO2RR coupled with incorporation in organic or inorganic reactants towards key industrial compounds such as carboxylic acids, ureas and dimethyl carbonate. We provide a broader context by outlining the current industrial synthesis methods of the envisioned compounds. Recent work is summarized in tables for quick comparison while innovations and improvements regarding sustainability and applicability are addressed in more detail.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 753-779"},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d4ey00005f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139770637","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

Making light work: designing plasmonic structures for the selective photothermal methanation of carbon dioxide† 轻装上阵：设计用于二氧化碳选择性光热甲烷化的质子结构

EES catalysis Pub Date : 2024-02-07 DOI: 10.1039/D3EY00315A

Yi Fen Zhu, Bingqiao Xie, Jodie A. Yuwono, Priyank Kumar, Abhinav S. Sharma, Michael P. Nielsen, Avi Bendavid, Rose Amal, Jason Scott and Emma C. Lovell

{"title":"Making light work: designing plasmonic structures for the selective photothermal methanation of carbon dioxide†","authors":"Yi Fen Zhu, Bingqiao Xie, Jodie A. Yuwono, Priyank Kumar, Abhinav S. Sharma, Michael P. Nielsen, Avi Bendavid, Rose Amal, Jason Scott and Emma C. Lovell","doi":"10.1039/D3EY00315A","DOIUrl":"10.1039/D3EY00315A","url":null,"abstract":"Effectively engaging light to induce catalytic activity requires the careful selection of a catalyst support with appropriate and beneficial properties. On this basis, black, plasmonic TiN was employed as a Ni catalyst support for the CO2 methanation reaction under illuminated-only conditions. The positive effects of light illumination were found to be defined by the Ni deposit size and the Ni–TiN interaction. At a high Ni loading (40 wt%, 70 wt%), simulated sunlight induces plasmonic heating through the TiN support which is sufficient to initially in situ reduce the Ni deposits and initiate CO2 methanation. Photothermal effects from TiN and the metallic Ni, combined with reaction exothermicity, then continue to further reduce the Ni and amplify the methanation reaction. At a lower Ni loading (10 wt%), the Ni deposits are smaller and more dispersed. In this case, the topmost Ni deposit surfaces are more strongly influenced by the TiN support due to their closer proximity to the metal–support interface. DFT calculations revealed that this condition can facilitate the migration of light induced plasmonic hot charge carriers from the TiN towards the exposed Ni surface, altering the surface charge of the Ni. The adsorption strength of *CO is subsequently enhanced to enable further reaction rather than desorption as product, thereby boosting CH4 selectivity. The findings discern between the different phenomena (plasmonic heating and hot electron migration) invoked by plasmonic excitation and offer new insight on the contribution these phenomena make to governing catalyst activity and selectivity.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 834-849"},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00315a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139770636","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

Multichannel nitrogen-doped carbon fiber confined Fe3C nanoparticles for efficient electroreduction of nitrate† 包含 Fe3C 纳米粒子的多通道掺氮碳纤维用于硝酸盐的高效电还原

EES catalysis Pub Date : 2024-02-05 DOI: 10.1039/D4EY00016A

Fangzhou Zhang, Zhangsheng Shi, Junliang Chen, Hongxia Luo, Jun Chen and Jianping Yang

{"title":"Multichannel nitrogen-doped carbon fiber confined Fe3C nanoparticles for efficient electroreduction of nitrate†","authors":"Fangzhou Zhang, Zhangsheng Shi, Junliang Chen, Hongxia Luo, Jun Chen and Jianping Yang","doi":"10.1039/D4EY00016A","DOIUrl":"10.1039/D4EY00016A","url":null,"abstract":"Electrochemical conversion of nitrate into benign dinitrogen is a promising solution for water purification and environmental remediation. The development of environmentally friendly electrocatalysts possessing excellent catalytic activity and stability has attracted increasing attention. Herein, a 1D hierarchical architecture with uniformly dispersed Fe3C nanoparticles confined in multichannel nitrogen-doped carbon fibers (Fe3C/MNCFs) is reported as a highly efficient NO3RR electrocatalyst. Fe3C/MNCFs-800 demonstrates a nitrate conversion of 90.9%, an N2 selectivity of 99.53%, and up to 15 cycles of electrocatalytic stability. The excellent electrocatalytic activity is proposed to be mainly due to the multichannel fibrous architecture beneficial for exposing more active sites and facilitating mass diffusion. Moreover, the strong interaction between active species and fibrous support guarantees the chemical stability and long cycle life. This work provides a reference for the development of high-performance noble-metal-free electrocatalysts for eco-friendly nitrate reduction.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 795-802"},"PeriodicalIF":0.0,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d4ey00016a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139689820","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

Cu-based catalysts for electrocatalytic nitrate reduction to ammonia: fundamentals and recent advances 电催化硝酸盐还原成氨的铜基催化剂：基本原理和最新进展

EES catalysis Pub Date : 2024-02-05 DOI: 10.1039/D4EY00002A

Kouer Zhang, Yun Liu, Zhefei Pan, Qing Xia, Xiaoyu Huo, Oladapo Christopher Esan, Xiao Zhang and Liang An

{"title":"Cu-based catalysts for electrocatalytic nitrate reduction to ammonia: fundamentals and recent advances","authors":"Kouer Zhang, Yun Liu, Zhefei Pan, Qing Xia, Xiaoyu Huo, Oladapo Christopher Esan, Xiao Zhang and Liang An","doi":"10.1039/D4EY00002A","DOIUrl":"10.1039/D4EY00002A","url":null,"abstract":"Electrocatalytic nitrate reduction has been identified as a promising technology for green ammonia production, allowing the conversion of harmful nitrate from wastewater into valuable ammonia using renewable electricity under ambient conditions. Developing advanced electrocatalysts is of paramount significance for improving the ammonia production efficiency in this process. Recently, Cu-based catalysts have been widely investigated in ammonia production via nitrate reduction due to their rapid reduction reaction kinetics, strong electrical conductivity, and ability to inhibit the hydrogen evolution reaction. Meanwhile, the reaction mechanism and computational and experimental methods have been extensively discussed to understand the theory behind the favourable properties of Cu-based catalysts. In this review, we focus on Cu-based catalysts, aiming to provide insights into the latest developments, reaction mechanisms, and state-of-the-art analysis methods for intermediates and products of nitrate reduction to ammonia. Future outlooks and remaining challenges are presented to provide guidance for advancing from experimental explorations to practical applications.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 727-752"},"PeriodicalIF":0.0,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d4ey00002a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139689692","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

Revisiting group 4–7 transition metals for heterogeneous ammonia synthesis 重新审视用于异相氨合成的 4-7 族过渡金属

EES catalysis Pub Date : 2024-02-02 DOI: 10.1039/D3EY00301A

Wenbo Gao, Yawei Wang, Qianru Wang, Zhaolong Sun, Jianping Guo and Ping Chen

{"title":"Revisiting group 4–7 transition metals for heterogeneous ammonia synthesis","authors":"Wenbo Gao, Yawei Wang, Qianru Wang, Zhaolong Sun, Jianping Guo and Ping Chen","doi":"10.1039/D3EY00301A","DOIUrl":"10.1039/D3EY00301A","url":null,"abstract":"Ammonia is a key small molecule for manufacturing nitrogen-based fertilizers and organic chemicals and equally important for renewable energy storage and conversion. The available Haber–Bosch ammonia synthesis process using fused iron catalysts operated under harsh conditions is, however, unsustainable. The development of alternative and more efficient approaches to sustainable ammonia production has garnered much attention recently. Most of the prior work has been devoted to the investigation of Fe, Ru or Co-based metal catalysts for ammonia synthesis. In comparison, there are very limited studies on group 4–7 transition metals, because they are prone to form metal nitrides, which are difficult to hydrogenate to ammonia. This mini-review summarizes recent advances in activating these metals for heterogeneous ammonia synthesis. We show that the potential properties of group 4–7 transition metals for ammonia synthesis should be revisited, which may lead to the development of more efficient materials or chemical processes for ammonia production under mild conditions.","PeriodicalId":72877,"journal":{"name":"EES catalysis","volume":" 3","pages":" 780-788"},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ey/d3ey00301a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139658600","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