AIChE Journal最新文献_第9页

Reversible adsorption and sieving of trace NH3 from NH3-H2 fuel cells systems using sulfonated porous polydivinylbenzene

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-10 DOI: 10.1002/aic.18783

Yongfang Qu, Wentao Zhang, Shouchao Zhong, Linyu Zhuo, Xi Wang, Huihuang Fang, Changkai Lin, Yong Zheng, Fujian Liu, Lilong Jiang

{"title":"Reversible adsorption and sieving of trace NH3 from NH3-H2 fuel cells systems using sulfonated porous polydivinylbenzene","authors":"Yongfang Qu, Wentao Zhang, Shouchao Zhong, Linyu Zhuo, Xi Wang, Huihuang Fang, Changkai Lin, Yong Zheng, Fujian Liu, Lilong Jiang","doi":"10.1002/aic.18783","DOIUrl":"https://doi.org/10.1002/aic.18783","url":null,"abstract":"Trace ammonia reversible adsorption and sieving using solid adsorbents present a critical challenge in the practical deployment of ammonia-hydrogen fuel cells. Herein, we design porous polydivinylbenzene (P-PDVB) through one-pot solvothermal polymerization without additional templates. Subsequently, solvent-induced network swelling was performed to achieve deep sulfonation of the P-PDVB using chlorosulfonic acid, resulting in P-PDVB-SO3H-x, which possess large specific surface areas, abundant micro-mesoporosity, and high acid site densities. Notably, P-PDVB-SO3H-x demonstrate superior performance for the selective capture and sieving of NH3 from an N2/H2/NH3 mixture, outperforming most previously reported NH3 adsorbents. Thus, P-PDVB-SO3H-x can serve as an efficient adsorbent for the selective removal of trace ammonia from ammonia-hydrogen fuel cell systems, significantly improving both the efficiency and longevity of the fuel cells. This work highlights the potential of P-PDVB-SO3H-x as a promising candidate for enhancing ammonia-hydrogen fuel cell performance, paving the way for further exploration of advanced adsorbent materials in energy applications.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"79 3 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanically mediated bulk atom transfer radical polymerization enabled by high‐performance piezoelectric Bi0.5Na0.5TiO3

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-09 DOI: 10.1002/aic.18762

Juan Xiong, Ke Yu, Bing‐Hao Wang, Xin‐Yi Huang, Shu Tang, Qing Hu, Jun‐Kang Guo, Long Tang, Shuang‐Feng Yin

{"title":"Mechanically mediated bulk atom transfer radical polymerization enabled by high‐performance piezoelectric Bi0.5Na0.5TiO3","authors":"Juan Xiong, Ke Yu, Bing‐Hao Wang, Xin‐Yi Huang, Shu Tang, Qing Hu, Jun‐Kang Guo, Long Tang, Shuang‐Feng Yin","doi":"10.1002/aic.18762","DOIUrl":"https://doi.org/10.1002/aic.18762","url":null,"abstract":"This study presents the successful mechanically mediated bulk atom transfer radical polymerization (mechano‐ATRP) of methyl acrylate (MA) using the high‐performance piezoelectric material Bi0.5Na0.5TiO3 (BNT) under ultrasonic conditions. Compared to the widely used BaTiO3 in mechano‐ATRP, BNT demonstrates superior piezoelectric performance, enhancing carrier generation, separation, and interfacial transfer. The strong interaction between BNT and Cu catalysts facilitates the rapid capture of mechano‐induced electrons, leading to the formation of CuI/L and efficient polymerization initiation. Factors such as piezoelectric material loading, Cu catalyst loading, targeted degrees of polymerization, and sonication power were systematically evaluated. The living nature of ATRP was confirmed by polymers with predetermined molecular weights and low dispersitis (<1.2). This work broadens the application of ATRP and offers valuable insights into the design of piezoelectric catalytic materials for mechano‐ATRP.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"41 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sequential hydrogenation enhanced by bidirectional hydrogen spillover over cascade catalyst

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-07 DOI: 10.1002/aic.18764

Shuai Wang, Daowei Gao, Rongyao Wang, Yong Wang, Yipin Lv, Lianghao Song, Huaiqing Zhao, Xuchuan Jiang, Riming Hu, Guozhu Chen

{"title":"Sequential hydrogenation enhanced by bidirectional hydrogen spillover over cascade catalyst","authors":"Shuai Wang, Daowei Gao, Rongyao Wang, Yong Wang, Yipin Lv, Lianghao Song, Huaiqing Zhao, Xuchuan Jiang, Riming Hu, Guozhu Chen","doi":"10.1002/aic.18764","DOIUrl":"https://doi.org/10.1002/aic.18764","url":null,"abstract":"Formulating a synergetic strategy to govern the catalytic function of dual metal sites is paramount to achieving precise control of cascade reactions. Herein, we construct a dual-site cascade catalyst with Pt and Ru species localized in the micropores and mesopores of zeolite, respectively. This architecture enables the spatial separation of Pt and Ru sites in nanoscale proximity. Compared to mono/bi-metallic catalysts, this cascade catalyst enables a 4.4–9.5 times enhancement in activity during the sequential hydrogenation of nitroaromatics to cyclohexylamine. Particularly, bidirectional hydrogen spillover assists hydrogenation between Pt and Ru sites is confirmed, where active hydrogen migrates from the less catalytic activity metal to the adjacent metal sites during the first/second step in the cascade reaction. Characterization studies and density functional theory calculations suggest that bidirectional hydrogen spillover enhances the coverage of active hydrogen at the active sites for each hydrogenation step, thereby reducing the energy barrier of the rate-controlling step. This intriguing phenomenon reveals the mechanism of accelerated hydrogenation and presents an opportunity for devising immensely efficient cascade catalysts.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"40 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A CFD study of the effect of ridge baffles on the hydrodynamic behavior in gas–solid fluidized system

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-07 DOI: 10.1002/aic.18758

Zhiyong Jia, Xiankun Shen, Yuelin Wang, Xiaocheng Lan, Tiefeng Wang

引用次数: 0

Gas hydrates in future food production: A comprehensive review of the potential of an emerging technology

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-06 DOI: 10.1002/aic.18755

Benedict Prah, Giovanni Luzi, Antonio Delgado, Man‐gi Cho

引用次数: 0

An atomically economical and environmentally benign approach for the scalable synthesis of rare-earth metal-organic framework catalysts

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-05 DOI: 10.1002/aic.18765

Xin Zhang, Xuefeng Bai, Yi Li, Yabo Xie, Run-Ji Zhang, Da-Yu Chen, Jian-Yu Zhang, Na Xing, Jian-Rong Li

{"title":"An atomically economical and environmentally benign approach for the scalable synthesis of rare-earth metal-organic framework catalysts","authors":"Xin Zhang, Xuefeng Bai, Yi Li, Yabo Xie, Run-Ji Zhang, Da-Yu Chen, Jian-Yu Zhang, Na Xing, Jian-Rong Li","doi":"10.1002/aic.18765","DOIUrl":"https://doi.org/10.1002/aic.18765","url":null,"abstract":"Metal–organic frameworks (MOFs), as an emerging class of porous materials, demonstrated substantial potential for applications in chemical engineering processes. However, their production often generates significant waste including ionic residues and organic solvents, posing considerable environmental concerns. Herein, we report the environmentally benign MOF synthesis with metal oxides precursors, yielding water as the exclusive by-product. This approach not only enhances atom economy but also promotes solvent recycling by preventing anion accumulation, significantly reducing waste generation. The synthesis can be easily scaled up in a 10-L reactor with an impressive space–time yield of 608 kg·m−3·day−1. Furthermore, MOF-76(Y) was implemented in a reactor for catalytic cycloaddition reaction at kg-scale. Through optimization of the interfacial contact between CO2 and the reaction liquid phase, a yield of 96.7% was achieved under mild conditions. This work demonstrates a rare example of scalable and sustainable synthesis of MOF materials coupled with catalysis implementation at kilogram scale.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"19 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On-aim generation of monodisperse droplets from piezoelectric pulsation-driven glass nozzles

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-04 DOI: 10.1002/aic.18744

Jinping Zha, Hong Zhu, Liangchao Shang, Yongchen Lu, Winston Duo Wu, Xiao Dong Chen, Jie Xiao

引用次数: 0

Breaking barriers for academic-industry sabbaticals

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-04 DOI: 10.1002/aic.18655

Ryan L. Hartman, Daniel A. Hickman, Amanda Palumbo, Narayan Ramesh

引用次数: 0

Investigation of hydrogen spillover in atomically dispersed metal on WO3 for selective hydrogenation

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-04 DOI: 10.1002/aic.18749

Yu Sun, Jie Gan, Bing Du, You Wang, Jieyi Yin, Sai Zhang

{"title":"Investigation of hydrogen spillover in atomically dispersed metal on WO3 for selective hydrogenation","authors":"Yu Sun, Jie Gan, Bing Du, You Wang, Jieyi Yin, Sai Zhang","doi":"10.1002/aic.18749","DOIUrl":"https://doi.org/10.1002/aic.18749","url":null,"abstract":"Optimizing kinetic barriers of hydrogen spillover for selective hydrogenation on supported catalysts with dual-active sites faces a significant challenge due to inherent contradiction between H2 activation and *H transformation from metal to support. Herein, the adsorption energy of *H (Ead(H)) on metal has been demonstrated as a viable descriptor for understanding hydrogenation on the WO3 surface with dual-active sites of single-atom metals and oxygen vacancies. Theoretical simulations rationalize the optimized value of Ead(H) of −2.49 eV for these dual-active sites. Furthermore, the absolute value (|ΔEad(H)|) between Ead(H) and −2.49 eV was calculated to directly explore the catalytic activity of M1/NR-WO3. Among them, the Pt1/NR-WO3 catalysts with the lowest |ΔEad(H)| exhibited the weakened *H adsorption and enabled efficient H2 activation, resulting in a TOF value of 170,480 h−1 and >99.9% selectivity for the hydrogenation of p-chloronitrobenzene to p-chloroaniline. These findings provide new insights into the hydrogen spillover-promoted selective hydrogenation.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"82 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143084161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green impacts of transforming green electricity into microwave for ammonia and urea production

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-02-03 DOI: 10.1002/aic.18743

Peng Jiang, Chenhan Wang, Lin Li, Tuo Ji, Liwen Mu, Xiaohua Lu, Jiahua Zhu

{"title":"Green impacts of transforming green electricity into microwave for ammonia and urea production","authors":"Peng Jiang, Chenhan Wang, Lin Li, Tuo Ji, Liwen Mu, Xiaohua Lu, Jiahua Zhu","doi":"10.1002/aic.18743","DOIUrl":"https://doi.org/10.1002/aic.18743","url":null,"abstract":"Green NH3 production is challenged by high energy consumption, costs, and low yields. Here, we proposed a new green NH3 process utilizing microwave (MW)-driven N2 transformations (GreenE+MW). This process integrates water electrolysis, air separation, MW-assisted NH3 synthesis, and NH3 separation. For comparison, a green NH3 process using the Haber–Bosch technology (GreenE+HB) was established, and the energy, economic, and environmental impacts were evaluated. The GreenE+MW process increased NH3 yield by 25.14% and reduced energy consumption by 20.69% compared to the GreenE+HB process. Furthermore, it demonstrated notable advantages in cost and carbon footprint, with green NH3 production costs potentially reduced to 326.84 USD/tNH3 at electricity price of 0.02 USD/kWh. Based on which, a green urea process was proposed, achieving an 85% reduction in carbon emissions (0.128 kgCO2e/kgUrea) compared to conventional methods. This work offers a unique electrification technology to reconstruct the industrial NH3 and urea production processes with a lower carbon footprint.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"24 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143084105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0