AIChE Journal最新文献_第2页

Integrated catalyst‐reactor design for benzylic C‐H oxidation: NiCo2O4 nanoarrays on metal foam in continuous flow 连续流动金属泡沫中苯基C - H氧化：NiCo2O4纳米阵列的集成催化剂-反应器设计

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-07-02 DOI: 10.1002/aic.18942

Xiaohui Zhang, Xude Yu, Zhuo Chen, Jian Chen, Jianhong Xu

{"title":"Integrated catalyst‐reactor design for benzylic C‐H oxidation: NiCo2O4 nanoarrays on metal foam in continuous flow","authors":"Xiaohui Zhang, Xude Yu, Zhuo Chen, Jian Chen, Jianhong Xu","doi":"10.1002/aic.18942","DOIUrl":"https://doi.org/10.1002/aic.18942","url":null,"abstract":"The selective oxidation of benzylic C‐H bonds to aryl ketones and alcohols holds significant importance in fine chemical synthesis. This study introduces a continuous‐flow aerobic oxidation strategy employing nickel foam‐supported NiCo2O4 spinel oxides as highly efficient heterogeneous catalysts. Prepared via electrodeposition, the catalysts feature nanosheet arrays (~5 nm thick), enabling efficient diffusion of liquid‐phase substrates into the solid catalyst. In a micro‐packed bed reactor, the open‐cell nickel foam, with (~160 μm pores), enhances gas–liquid mass transfer. This strategy achieved >96% fluorene oxidation conversion and >98% selectivity within a short residence time (48 min), with stable performance over 130 h. The method was successfully applied to 13 diverse benzylic C–H substrates. Mechanistic studies indicate a radical‐based pathway, with oxygen adsorption following the Langmuir–Hinshelwood model. Cobalt sites promote oxygen activation, while nickel sites enhance substrate adsorption. This work presents a safe and efficient approach, offering prospects for industrial applications.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"11 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547305","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

Mechanistic study for catalytic promiscuity of phenylalanine dehydrogenase induced by amino acid deep eutectic solvents 氨基酸深度共熔溶剂诱导苯丙氨酸脱氢酶催化混杂的机理研究

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-07-02 DOI: 10.1002/aic.18937

Yuxin Chen, Qian Zhang, Shizhen Wang

引用次数: 0

Surface structure modulation of biochar enables high‐efficiency photodriven CO2 fixation 生物炭的表面结构调节实现了高效的光驱动CO2固定

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-07-01 DOI: 10.1002/aic.18935

Meili Ding, Wei Rong, Yang Wang, Jianfeng Yao

{"title":"Surface structure modulation of biochar enables high‐efficiency photodriven CO2 fixation","authors":"Meili Ding, Wei Rong, Yang Wang, Jianfeng Yao","doi":"10.1002/aic.18935","DOIUrl":"https://doi.org/10.1002/aic.18935","url":null,"abstract":"Reforming desirable photocatalytic platforms for efficient carbon dioxide (CO2) utilization is highly desirable but represents a great challenge. In this study, we report a facile surface structure modulation strategy to fabricate functional biochars (BCs) with different surface oxygen functional groups. The mild oxidation of sodium hypochlorite endows BC with abundant surface oxygen species without significantly compromising its inherent morphology. Under Xe lamp irradiation (400 mW/cm2) and 1 bar CO2, the catalytic activity toward the coupling of CO2 and epichlorohydrin based on BC‐NaClO reached 100% yield, which was 3.8, 2.6, and 1.5 times greater than that of pristine BC, functional BC‐HNO3, and BC‐NaOH, respectively. Further investigations revealed the contributions of both holes and electrons to the photocatalytic activity of BC‐NaClO and the synergistic effects of photocatalysis and photothermal catalysis. This work demonstrates a rational pathway toward high‐efficiency biomass‐derived photocatalysts for targeted CO2 conversion.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"19 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144533050","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

Correction to “Could The Chemical Industry Mitigate Rapid Global Cooling From A Catastrophic Volcanic Eruption?” 更正“化学工业能否缓解灾难性火山喷发造成的全球快速降温？”

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-06-25 DOI: 10.1002/aic.18932

David S. Sholl

引用次数: 0

Digital design and optimization of the integrated synthesis and crystallization process using data-driven approaches 采用数据驱动方法的集成合成和结晶过程的数字化设计和优化

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-06-17 DOI: 10.1002/aic.18931

Yiming Ma, Wei Li, Jiaxu Liu, Gao Shang, Huaiyu Yang, Junbo Gong, Zoltan K. Nagy, Brahim Benyahia

引用次数: 0

A tandem electro-thermocatalysis platform for practical hydrogen peroxide-mediated oxygenation reactions at high rates 串联电-热催化平台，用于实际过氧化氢介导的高速率氧化反应

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-06-11 DOI: 10.1002/aic.18930

Huijie Chen, Menglu Cai, Jianbo Shao, Ting Lin, Yan Liu, Yiming Mo

{"title":"A tandem electro-thermocatalysis platform for practical hydrogen peroxide-mediated oxygenation reactions at high rates","authors":"Huijie Chen, Menglu Cai, Jianbo Shao, Ting Lin, Yan Liu, Yiming Mo","doi":"10.1002/aic.18930","DOIUrl":"https://doi.org/10.1002/aic.18930","url":null,"abstract":"Hydrogen peroxide (H2O2) is a platform green oxidant for high-value chemical synthesis, but its centralized production hinders its widespread use in a safe manner. Here, we describe a practical tandem electro-thermochemical H2O2-mediated oxygenation platform for the synthesis of various high-value oxygen-containing compounds. The integration of solid-electrolyte H2O2 electrosynthesis with heterogeneous zeolite thermocatalysis enables atom-efficient oxygenations without the need for downstream electrolytes or catalysts separation. A spatially decoupled tandem system integrating aqueous H2O2 electrosynthesis with nonaqueous thermocatalysis offers independent optimization capabilities, thus maximizing the overall space–time yield (STY). With microfluidic packed-bed intensification for heterogeneous thermocatalysis, this tandem system achieved H2O2-mediated oxygenation of thioesters to sulfoxide at a high current density (300 mA cm−2) and STY (7.07 mmol cm−3 h−1). Furthermore, the platform's broad applicability was showcased with titanium-silicalite-1 zeolite catalyzed olefin epoxidation and cyclohexanone oxime synthesis, underscoring its potential for diverse catalytic oxygenation applications.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"41 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144260261","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

Probing bimodal sub-nanopores in carbon for ideal fast sieving separation of propylene/propane 探测碳中双峰亚纳米孔对丙烯/丙烷理想快速筛分的影响

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-06-10 DOI: 10.1002/aic.18926

Xinxin Li, Jiawu Huang, Cuiting Yang, Xingjie Wang, Xuan Wei, Xiaoying Zhou, Hao Tang, Jing Xiao

{"title":"Probing bimodal sub-nanopores in carbon for ideal fast sieving separation of propylene/propane","authors":"Xinxin Li, Jiawu Huang, Cuiting Yang, Xingjie Wang, Xuan Wei, Xiaoying Zhou, Hao Tang, Jing Xiao","doi":"10.1002/aic.18926","DOIUrl":"https://doi.org/10.1002/aic.18926","url":null,"abstract":"Rigid molecular sieve is highly desirable in industrial gas separation, but persistently challenged by sluggish adsorption within inherent rigidity-confined narrow sieving pores. Herein, we report a rigid carbon-based molecular sieve featuring ink-bottle bimodal sub-nanopores for the ideal fast sieving separation of propylene/propane mixture. The tailor-made narrow pore entrance, centered at 5.0 Å, affords precise sieving capacity for propylene over propane with a high selectivity exceeding 200. Concurrently, the larger cavity located at 6.4 Å allows the exceptional fast adsorption kinetics of propylene. The measured diffusion coefficient of propylene (4.2 × 10–3 s−1) is one to two orders of magnitude higher than state-of-the-art rigid molecular sieves and comparable to the non-steric diffusion observed in mesoporous zeolite. High-purity C3H6 production (>99.2%) is achieved in breakthrough experiments through a single adsorption–desorption cycle. This study paves an avenue to unlock rigid molecular sieves toward advanced separation of challenging gas analogues.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"585 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144260262","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

Chloride-resistant NiFe oxyhydroxides via dual-atom doping for industrial-grade alkaline seawater electrolysis 通过双原子掺杂制备工业级碱性海水电解用耐氯NiFe氧化氢氧化物

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-06-09 DOI: 10.1002/aic.18929

Lin Wang, Xiaohe Zheng, Zhengfei Chen, Jiadong Wu, Qiang Zhou, Zhongjian Li, Bin Yang, Cheng Lian, Jianguo Lu, Yuanyuan Li, Lecheng Lei, Yang Hou

{"title":"Chloride-resistant NiFe oxyhydroxides via dual-atom doping for industrial-grade alkaline seawater electrolysis","authors":"Lin Wang, Xiaohe Zheng, Zhengfei Chen, Jiadong Wu, Qiang Zhou, Zhongjian Li, Bin Yang, Cheng Lian, Jianguo Lu, Yuanyuan Li, Lecheng Lei, Yang Hou","doi":"10.1002/aic.18929","DOIUrl":"https://doi.org/10.1002/aic.18929","url":null,"abstract":"Developing efficient and stable electrocatalysts for seawater splitting remains a huge challenge because of low catalytic selectivity and poor resistance to chlorine-induced corrosion. Here, we developed a nickel-iron layered double hydroxide nanosheets doped with chromium and sulfur dual atoms (Cr,S-NiFe LDH). Cr,S-NiFe LDH exhibited low overpotentials of 321 and 406 mV at industrial current densities of 500 and 1000 mA cm−2, respectively. An anion exchange membrane electrolyzer based on Cr,S-NiFe LDH anode can maintain 2000 mA cm−2@1.764 V for 100 h. Electronic structure analysis revealed that the sulfur doping facilitates electron transfer from nickel to sulfur sites, while chromium incorporation strengthens the electronic interactions between iron and chromium sites. This modification induced the formation of high-valence nickel and chromium species, which favor seawater electrolysis. Mechanistic studies revealed that dual heteroatom doping modifies the local electronic environment of nickel/iron sites, repelling chlorine ions and optimizing the adsorption of oxygenated intermediates.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"60 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237913","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

Novel microannular rotating bed: Hydrodynamics and liquid–liquid dispersion study 新型微环旋转床：流体力学和液-液分散研究

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-06-09 DOI: 10.1002/aic.18928

Zhiliang Zhang, Qiao Chen, Hui Xue, Guo Yang, Gongtao Wu, Wei Liu, Dongting Wang, Jianbing Ji

{"title":"Novel microannular rotating bed: Hydrodynamics and liquid–liquid dispersion study","authors":"Zhiliang Zhang, Qiao Chen, Hui Xue, Guo Yang, Gongtao Wu, Wei Liu, Dongting Wang, Jianbing Ji","doi":"10.1002/aic.18928","DOIUrl":"https://doi.org/10.1002/aic.18928","url":null,"abstract":"Microannular rotating bed (MARB) is a newly designed reactor that integrates high-gravity fields and microscale effects to enable efficient liquid mixing. This study systematically investigated the hydrodynamic and liquid–liquid dispersion characteristics of the MARB, including residence time distribution, liquid holdup, energy dissipation rate, and Sauter mean diameter (d32). Mathematical correlations for predicting these parameters were established. The results showed that the MARB operates with a flow pattern similar to that of a continuous stirred-tank reactor. Liquid holdup increased linearly with flow rate and decreased with rotational speed, while energy dissipation rate was primarily governed by rotational speed. Notably, the MARB demonstrated excellent liquid–liquid dispersion performance, attaining a minimum d32 of 4.9 μm at a flow rate of 5 L/min, along with improved energy efficiency compared to conventional reactors. With its simple, high-throughput, and effective design, the MARB offers a highly promising solution for efficient liquid–liquid dispersion in industrial applications.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"17 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252861","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

Modeling heterogeneity in large-scale bioreactors using the method of moments with a truncated normal distribution 用截断正态分布矩量法模拟大型生物反应器的非均质性

IF 3.7 3区工程技术

AIChE Journal Pub Date : 2025-06-06 DOI: 10.1002/aic.18922

Ittisak Promma, Marc G. Aucoin, Nasser Mohieddin Abukhdeir, Hector Budman

引用次数: 0