Chem Catalysis最新文献_第7页

Integration of hydrophobic gas diffusion layers for zero-gap electrolyzers to enable highly energy-efficient CO2 electrolysis to C2 products 为零间隙电解槽集成疏水气体扩散层，实现C2产品的高能效CO2电解

IF 9.4

Chem Catalysis Pub Date : 2025-01-17 DOI: 10.1016/j.checat.2024.101235

Maxwell Goldman, Eric Krall, Michell Marufu, Melinda L. Jue, Santiago Tzintzun, Jonathan Kai Wagner, Shaffiq Jaffer, Amitava Sarkar, Maximilian Fleischer, Elfriede Simon, Andrew A. Wong, Sarah E. Baker

{"title":"Integration of hydrophobic gas diffusion layers for zero-gap electrolyzers to enable highly energy-efficient CO2 electrolysis to C2 products","authors":"Maxwell Goldman, Eric Krall, Michell Marufu, Melinda L. Jue, Santiago Tzintzun, Jonathan Kai Wagner, Shaffiq Jaffer, Amitava Sarkar, Maximilian Fleischer, Elfriede Simon, Andrew A. Wong, Sarah E. Baker","doi":"10.1016/j.checat.2024.101235","DOIUrl":"https://doi.org/10.1016/j.checat.2024.101235","url":null,"abstract":"Electrochemical CO2 reduction (eCO2R) is an attractive route for mitigating global CO2 emissions while producing value-added chemicals. Ethylene is one product of eCO2R and is an essential industrial precursor with a global market of $230 billion. The large-scale implementation of C2H4-selective CO2 electrolyzers remains challenging because of low energy efficiencies. In this work, we develop the design principles necessary for incorporating an expanded polytetrafluoroethylene (ePTFE) electrode into a zero-gap electrolyzer while simultaneously developing an integrated electrical front contact that reduces the ohmic resistances inherent to electrically insulating gas diffusion layers. By co-designing the catalyst layer, gas diffusion medium, and operating conditions for a zero-gap ePTFE gas diffusion electrode (GDE), we achieved a full-cell voltage of 2.5 V at 200 mA cm−2 at 25 cm2 geometric area cell with Faradaic efficiencies of 48% for ethylene and 40% for ethanol. This work highlights strategies for developing a scalable, stable, and highly energy-efficient eCO2R for C2 products.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"50 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142987654","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

Beyond thermocatalysis for the production of ultrahigh-purity CO from HCOOH decomposition 超热催化HCOOH分解生产超高纯度CO

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101236

Young-Woong Suh, Chae-Ho Shin

引用次数: 0

Trends in industrial ethylene production: Innovation in process and catalyst design 工业乙烯生产的趋势：工艺和催化剂设计的创新

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101241

Chaoran Jiang, Feng He, Lijun Zhang, Guoqing Wang, Lichen Liu

引用次数: 0

Reliable and accessible methods for urea quantification in co-reduction of carbon-dioxide- and nitrogen-containing species 在二氧化碳和含氮物种共还原过程中尿素定量的可靠和容易获得的方法

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101234

Yan Zhang, Gefei Huang, Haichuan Zhang, Xiaoyi Qiu, Guimei Liu, Yinuo Wang, Juhee Jang, Yian Wang, Zidong Wei, Zongwei Cai, Minhua Shao

{"title":"Reliable and accessible methods for urea quantification in co-reduction of carbon-dioxide- and nitrogen-containing species","authors":"Yan Zhang, Gefei Huang, Haichuan Zhang, Xiaoyi Qiu, Guimei Liu, Yinuo Wang, Juhee Jang, Yian Wang, Zidong Wei, Zongwei Cai, Minhua Shao","doi":"10.1016/j.checat.2024.101234","DOIUrl":"https://doi.org/10.1016/j.checat.2024.101234","url":null,"abstract":"Electrocatalytic urea synthesis by the co-reduction of CO2 and nitrogen sources under mild conditions offers an attractive alternative to the conventional protocol. However, the quantification of urea poses significant challenges because of low yields and diverse byproducts, thereby raising concerns regarding the reliability of catalyst performance. This study systematically assesses the commonly used methods (urease, diacetyl monoxime, and 1H-NMR) in real electrochemical systems and identifies their potential limitations. We then propose an advanced analytical platform that uses ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLC-HRMS) to quantify urea in electrolytes. This method exhibits high sensitivity, even at ultralow urea concentrations of 0.01 μg mL−1, without compromising accuracy in the presence of byproducts. Its reliability is validated through a series of experimental cases, eliminating the occurrence of false positives. These findings contribute to establishing a benchmark for quantifying urea in electrosynthesis, facilitating the development of efficient electrocatalysts.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"30 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142986986","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

An agrochemical perspective on Pd-catalyzed cross-coupling chemistry 钯催化交叉偶联化学的农化展望

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101256

Mark J. Ford, Ian J.S. Fairlamb

引用次数: 0

AI unveils metal-support interaction principle to optimize catalyst design AI揭示金属支撑相互作用原理，优化催化剂设计

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101231

Haobo Li

引用次数: 0

Antenna-reactor plasmonic photocatalyst for efficient steam reforming of methane 用于甲烷高效蒸汽重整的天线-反应器等离子体光催化剂

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101242

Mengyao Sun, Yanjun Chen, Zhen Zhao

引用次数: 0

Opportunities and challenges in the ethylene value chain 乙烯价值链中的机遇与挑战

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101240

Feng He, Chaoran Jiang, Lijun Zhang, Guoqing Wang, Lichen Liu

引用次数: 0

Why deciphering complexity in Pd-catalyzed cross-coupling reactions matters 为什么破译pd催化的交叉偶联反应的复杂性很重要

IF 9.4

Chem Catalysis Pub Date : 2025-01-16 DOI: 10.1016/j.checat.2024.101255

Ian J.S. Fairlamb, Mark J. Ford

引用次数: 0

Carbon-conductor-based photocatalyst sheets fabricated by a facile filtration process for efficient, stable, and scalable water splitting 碳导电性光催化剂片材通过简单的过滤工艺制造，用于高效、稳定和可扩展的水分解

IF 9.4

Chem Catalysis Pub Date : 2025-01-14 DOI: 10.1016/j.checat.2024.101233

Chen Gu, Yugo Miseki, Hiroshi Nishiyama, Tsuyoshi Takata, Joji Yoshimura, Yiwen Ma, Lihua Lin, Takashi Hisatomi, Daling Lu, Nobuyuki Zettsu, Yuta Nishina, Kazunari Domen

{"title":"Carbon-conductor-based photocatalyst sheets fabricated by a facile filtration process for efficient, stable, and scalable water splitting","authors":"Chen Gu, Yugo Miseki, Hiroshi Nishiyama, Tsuyoshi Takata, Joji Yoshimura, Yiwen Ma, Lihua Lin, Takashi Hisatomi, Daling Lu, Nobuyuki Zettsu, Yuta Nishina, Kazunari Domen","doi":"10.1016/j.checat.2024.101233","DOIUrl":"https://doi.org/10.1016/j.checat.2024.101233","url":null,"abstract":"The use of Z-scheme photocatalyst sheets is a promising approach to efficient renewable hydrogen production via sunlight-driven water splitting using immobilized particulate photocatalysts. However, most existing systems are not scalable because of the use of costly vacuum and harmful calcination processes and conductors that are unstable and prone to back reactions. Here, we show that carbon-based electron conductors, incorporated by a facile filtration process, can overcome these problems. Z-scheme photocatalyst sheets consisting of cocatalyst-loaded Sm2Ti2O5S2 and BiVO4 (which serve as a hydrogen evolution photocatalyst and an oxygen evolution photocatalyst, respectively, under visible light), bridged with carbon-based electron conductors, provide a solar-to-hydrogen energy conversion efficiency of 0.4%, despite the simplicity of fabrication and operation, and can evolve hydrogen and oxygen under photoexcitation at atmospheric pressure. This study provides a practical approach to realizing commercial-scale solar hydrogen production via Z-scheme photocatalytic water splitting.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"31 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142974925","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