Chemical Engineering Journal最新文献_第3页

The coupling mechanism of bubble dynamics, wake vortex evolution and binary particle segregation in a fluidized bed 流化床内气泡动力学、尾流涡演化与二元颗粒偏析的耦合机理

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168355

Zhenghao Yang, Jianping Li, Ziheng Jin, Bangda Wang, Guangmei Cao, Yulong Chang, Xia Jiang, Hualin Wang

{"title":"The coupling mechanism of bubble dynamics, wake vortex evolution and binary particle segregation in a fluidized bed","authors":"Zhenghao Yang, Jianping Li, Ziheng Jin, Bangda Wang, Guangmei Cao, Yulong Chang, Xia Jiang, Hualin Wang","doi":"10.1016/j.cej.2025.168355","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168355","url":null,"abstract":"Particle segregation and mixing in fluidized beds constitute critical phenomena governing multiphase industrial processes. This study employs Electrical Capacitance Tomography (ECT) and Digital Image Analysis-Particle Image Velocimetry (DIA-PIV) to visualize the dynamic evolution of bubbles in 3D and 2D fluidized beds, respectively. ECT enable quantify the segregation time (in seconds) of binary particle within a 3D bed. Compared to unary systems, binary systems exhibit more pronounced bubble bursting at the bed surface, which suppresses excessive bubble growth and facilitates favorable fluidization and segregation conditions. Furthermore, based on the movement patterns of different particles within the bubbles, a particle segregation density range model was established. Ultimately, the influence of wake vortex on binary particle segregation behavior is quantitatively assessed, unveiling the oscillatory evolution of both wake vortex and emulsion phase. The findings indicate a power-law relationship between the square of bubble size and wake vortex perturbation area. The combined effect of the bubble and the wake vortex accelerates the segregation of binary particles. Notably, wake-induced perturbation generates periodic oscillations in emulsion phase fluctuation velocity, producing vibrational field-analogous dynamic effects. This study reveals the coupling mechanism of bubble dynamics, wake vortex evolution and binary particle segregation, which provides a basis for the microscopic dynamic segregation of binary gas-solid fluidized.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"36 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Built-in electric field in covalent triazine framework grafted carbon nitride to boost piezocatalytic hydrogen peroxide production under ambient conditions 共价三嗪接枝氮化碳框架内的内置电场在环境条件下促进压电催化过氧化氢生产

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168538

Jingyi Yang, Huiru Chen, Jie Leng, Lijiang Guan, Zhi Li, Shangbin Jin, Mingshan Zhu

{"title":"Built-in electric field in covalent triazine framework grafted carbon nitride to boost piezocatalytic hydrogen peroxide production under ambient conditions","authors":"Jingyi Yang, Huiru Chen, Jie Leng, Lijiang Guan, Zhi Li, Shangbin Jin, Mingshan Zhu","doi":"10.1016/j.cej.2025.168538","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168538","url":null,"abstract":"Piezocatalysis is a promising method for sustainable chemical synthesis through mechanical energy to chemical energy transformation. However, its practical development is limited by low charge separation efficiency. Here, we present a carbon nitride (C3N4)/ covalent triazine frameworks (CTFs) (C3N4/CTF-HC-2) system with enhancing interfacial electric field (IEF), for high-performance piezocatalytic production of hydrogen peroxide (H2O2). In pure water, the optimized catalyst demonstrates a H2O2 production rate of 4.98 mmol g−1 h−1 under ultrasound, which is 4.6 and 8.9 times greater than that of CTF-HC-2 and C3N4, respectively. This excellent performance is attributed to the strong IEF at the C3N4/CTF-HC-2 interface, which is calculated to be 1.71 times stronger than that of C3N4. This promotes rapid charge separation and abundant pyridine nitrogen sites enhance oxygen activation. Thus, the synergistic effect between IEF and piezocatalytic polarization realizes the overall H2O2 production, offering a new strategy for enhancing charge transfer in piezocatalysis through IEF.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"32 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Tuning the disordered microdomains in hard carbon via nitrogen doping for high-performance sodium storage 通过氮掺杂调整硬碳无序微畴以实现高性能钠存储

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168490

Zhifei Wang, Zhiyu Xue, Xiaobin Niu, Jiuhui Han, Rui Wu, Podgorny Dmitry Andreevich, Daniel John Blackwood, Chao Li, Jun Song Chen

{"title":"Tuning the disordered microdomains in hard carbon via nitrogen doping for high-performance sodium storage","authors":"Zhifei Wang, Zhiyu Xue, Xiaobin Niu, Jiuhui Han, Rui Wu, Podgorny Dmitry Andreevich, Daniel John Blackwood, Chao Li, Jun Song Chen","doi":"10.1016/j.cej.2025.168490","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168490","url":null,"abstract":"Hard carbon materials have demonstrated exceptional potential for sodium-ion storage, where the storage capabilities are usually determined by the microdomains with different degree of orderness. However, the precise control of the tunable construction of these microdomains remains a challenge. In this study, we discover that the specific content of these micro-regions, such as graphite-like, pseudo-graphitic, and highly-disordered structures, can be facilely tuned by the insertion of nitrogen into the carbon network. The presence of nitrogen doping induces the formation of these three microstructures, and thus a sample with the optimized amount of active pseudo-graphitic regions and inactive graphitic regions demonstrates a stable reversible capacity of 309 mAh g−1 after 140 cycles at 0.03 A g−1. Moreover, the optimized sample exhibits excellent long-term cyclability, retaining >90 % after 2000 cycles at 1 A g−1. This study provides important insights, supported by experimental evidence, for the design of next-generation hard carbon anode materials.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"24 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Electromethanogenesis with 3D printed carbon electrodes: Effects of surface properties and geometries on H2 generation and CO2 reduction 3D打印碳电极的甲烷电生成：表面性质和几何形状对H2生成和CO2减少的影响

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168495

Miriam Fernandez-Avila Cobo, Babak Rezaei, Stephan Sylvest Keller, Yifeng Zhang

{"title":"Electromethanogenesis with 3D printed carbon electrodes: Effects of surface properties and geometries on H2 generation and CO2 reduction","authors":"Miriam Fernandez-Avila Cobo, Babak Rezaei, Stephan Sylvest Keller, Yifeng Zhang","doi":"10.1016/j.cej.2025.168495","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168495","url":null,"abstract":"Electromethanogenesis offers a promising approach to the sustainable conversion of CO₂ into CH₄, yet enhancing its efficiency remains a key challenge. One strategy involves developing more conductive, biocompatible electrodes with increased surface area. In this study, 3D pyrolytic carbon electrodes fabricated by 3D printing and subsequent pyrolysis were proposed as cathodes for electromethanogenesis systems. The results revealed a successful implementation of these 3D printed cathodes for CO2 reduction, with comparable performance to the one of carbon felt. Moreover, the effect of surface charge and porosity was evaluated by modifying the surface, resulting in a much more porous and neutrally charged electrode. Negatively charged surfaces favoured hydrogen evolution reaction, while increased porosity and neutrally charged electrodes enhanced microbial activity. Finally, the impact of lattice size was studied by fabricating modified electrodes with different designs. The study of the different designs showed that a more compact lattice structure reduced the internal resistance of the electrode, enhancing H₂ and CH4 production, while larger lattice sizes presented larger internal resistance, reducing current and H2 and CH4 generation. This research underlines the importance of optimizing surface properties and geometry when designing 3D electrodes for electromethanogenesis.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"90 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Coupled evolution of carbon structure and function in recycled hydrothermal carbonization via salt-free and KCl-catalysed routes 无盐和氯化钾催化循环水热炭化过程中碳结构与功能的耦合演化

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168500

Xin Luo, Xiangjun Pe, Xiaochao Zhang, Tong Hu, Tao Liu

{"title":"Coupled evolution of carbon structure and function in recycled hydrothermal carbonization via salt-free and KCl-catalysed routes","authors":"Xin Luo, Xiangjun Pe, Xiaochao Zhang, Tong Hu, Tao Liu","doi":"10.1016/j.cej.2025.168500","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168500","url":null,"abstract":"Closing the water loop in hydrothermal carbonization (HTC) demands repeated process water (PW) reuse; adding salts offers catalytic leverage, yet their combined influence on hydrochar function evolution remains uncharted. In this study biomass was treated in five consecutive HTC cycles along two paths (with or without KCl). At every cycle the hydrochars were examined for phase composition, surface chemistry and pore texture, while the physical and chemical properties of PW were also tracked. Cr(VI) adsorption ability, fuel quality and carbon stability served as functional probes of hydrochars. Results show a pronounced split in functional evolution. The hydrochar obtained after the third recycle without KCl reached the highest Cr(VI) capacity (27 mg/g) owing to maximum polar groups and open mesopores, but energy and stability plateaued. Conversely, the hydrochar obtained after the second recycle with KCl achieved coal-like O/C, a record 24 MJ/kg heating value and 62 % carbon retention, yet its sorption sites were largely stripped. Later cycles in each path were dominated by secondary-char re-deposition and mineral crusting, which raised ash while damping further gains. Liquid analysis confirmed that organic load surged only after the point where solid performance had already peaked. These findings define simple rules: three PW recycles without salt optimise adsorption; two recycles with salt maximise fuel and carbon storage; recycling beyond four turns yields marginal benefit but sharp effluent growth. These findings provide a straightforward roadmap for matching the number of PW recycles and the use of salt additives to the desired balance among water reuse, pollutant removal, energy recovery, and long-term carbon storage in HTC systems.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"76 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Hypothermia-induced on-demand drug delivery at a subcutaneous islet transplantation site 低温诱导的胰岛皮下移植部位按需给药

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168418

Kosala D. Waduthanthri, Purushothaman Kuppan, Gregory S. Korbutt, Andrew R. Pepper, Larry D. Unsworth

{"title":"Hypothermia-induced on-demand drug delivery at a subcutaneous islet transplantation site","authors":"Kosala D. Waduthanthri, Purushothaman Kuppan, Gregory S. Korbutt, Andrew R. Pepper, Larry D. Unsworth","doi":"10.1016/j.cej.2025.168418","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168418","url":null,"abstract":"Insulin independence is seen in ~50 % of type 1 diabetes patients five years after islet transplantation. However, widespread use of this approach is limited by significant islet cell death due to immune responses and drug-induced toxicity from immunosuppression. Enhancing islet survival through drug therapy is challenging as the liver transplant site is inaccessible for direct delivery, and reaching effective concentrations requires high systemic doses that may cause side effects. Dexamethasone is a hydrophobic drug used to suppress immune response after islet transplantation but carries risks of chronic side effects. Presensitized subcutaneous transplant sites provide a unique situation whereby exogenous stimuli may be used to trigger localized drug release to enhance the post-transplantation survival of islet grafts. It is hypothesized that the co-injection of dexamethasone-laden, temperature-sensitive particles with islets in the subcutaneous transplant site will retain the drug locally until controlled hypothermia is induced to trigger its release. To this end, elastin-like polypeptides (i.e., (AG)40L80) were used to form dexamethasone-laden particles that exhibited consistent disassembly below 20 °C. Post-transplantation hypothermia applied locally at the graft site effectively triggered the release of dexamethasone, leading to an increase in the anti-inflammatory IL-10 level within the graft without adversely affecting the transplanted islets. This proof-of-concept study demonstrates that the localized release of drugs using exogenous hypothermia is a novel approach that can take advantage of the thermal window (i.e., 10 °C to 37 °C) to systematically release drugs in the transplant zone over long periods to enhance islet cell survival and function.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"16 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Comprehensive process for valorization of sodium sulfate byproduct into sodium bicarbonate: Integrated approach toward sustainable battery material production 硫酸钠副产品转化为碳酸氢钠的综合工艺：可持续电池材料生产的综合方法

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168517

Jung Gi Min, Hwan Gi Kim, Wangsoo Kim, Hwabhin Kwon, Seungwan Seo, Youngchul Byun

{"title":"Comprehensive process for valorization of sodium sulfate byproduct into sodium bicarbonate: Integrated approach toward sustainable battery material production","authors":"Jung Gi Min, Hwan Gi Kim, Wangsoo Kim, Hwabhin Kwon, Seungwan Seo, Youngchul Byun","doi":"10.1016/j.cej.2025.168517","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168517","url":null,"abstract":"While secondary batteries are expected to see explosive demand growth in the pursuit of carbon neutrality, the production processes for their raw materials remain environmentally problematic. In particular, the generation of sodium sulfate (Na₂SO₄) has emerged as a major environmental concern, leading to increasing interest in its conversion into sodium bicarbonate (NaHCO₃) as a potential solution. However, the feasibility of this approach remains uncertain due to the lack of a fully established and integrated process that simultaneously achieves control over NaHCO₃ particle size, enhances product purity, and enables effective post-production wastewater treatment. Motivated by this consideration, we proposed an integrated process encompassing the entire pathway from raw material input to final waste discharge. This process incorporates a circulating cooling method to control particle size (20–200 μm), a water rinsing step to increase NaHCO₃ purity (up to 99.3 %), and a CaO-assisted wastewater treatment method that recovers ammonium (up to 95.0 %) to ammonia gas and precipitates sulfate (up to 85.0 %) via gypsum (CaSO₄) formation. All proposed methods were experimentally validated, and the entire process was further assessed for quantitative feasibility through process simulation based on mass balance analysis. Overall, the developed approach provides a practical and integrated pathway for converting Na₂SO₄ into value-added NaHCO₃ and CaSO₄, thereby enhancing the sustainability of the secondary battery industry.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"24 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Fabrication of metal organic framework membranes via hierarchical metal-governed interfacial regulation synergy for efficient propylene/propane separation 通过层状金属调控界面协同作用制备用于丙烯/丙烷高效分离的金属有机框架膜

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168493

Bing-Hong Chen, Yu-Jie Wang, Li-Hao Xu, Yan-Mei Zhang, Qian-Qian Li, Zhi-Ping Zhao

{"title":"Fabrication of metal organic framework membranes via hierarchical metal-governed interfacial regulation synergy for efficient propylene/propane separation","authors":"Bing-Hong Chen, Yu-Jie Wang, Li-Hao Xu, Yan-Mei Zhang, Qian-Qian Li, Zhi-Ping Zhao","doi":"10.1016/j.cej.2025.168493","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168493","url":null,"abstract":"Metal-organic framework (MOF) membranes are regarded as promising candidates for achieving excellent propylene/propane separation performance and possess the potential for industrial application. However, the complexity of regulating the growth process of MOF on substrates renders the directly preparation of defect-free films extremely challenging. Herein, we proposed a hierarchical metal governed-interfacial regulation (HMG-IR) strategy to engineer structurally optimized MOF/substrate interfaces by synergistically integrating hydroxyl-rich robust vermiculite (VMT) nanosheets, Zn2+ ions, and phosphate-functionalized phytic acid (PA). Pre-introduced Zn2+ facilitate the formation of a uniform Zn-PA coordination network via hierarchical interactions, while subsequent coordination saturation increases interfacial metallization density, thereby reducing the MOF nucleation energy barrier and guiding its epitaxial growth. Based on this targeted designed interface, a crystalline ZIF-8 membrane with remarkable properties has been fabricated through a surface-induced solution process. The optimized membrane exhibits structural integrity, a defect-free morphology and an ultrathin thickness of ~251 nm. It demonstrates excellent C₃H₆/C₃H₈ separation performance with a C₃H₆ permeance of 141.6 GPU and C₃H₆/C₃H₈ selectivity of 40.1, coupled with outstanding long-term stability and mechanical durability. This study establishes a novel strategy for the in-situ construction of ultrathin MOF films through multi-level interfacial engineering, highlighting the pivotal role of coordinated nucleation manipulation and controlled crystal growth in overcoming traditional fabrication limitations.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"17 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

All-fibrous sandwich-structured humidity actuators enabling multimodal adaptive thermal comfort management 全纤维三明治结构湿度执行器，实现多模态自适应热舒适管理

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168469

Lijun Yang, Xin-Long Qian, Zhi-Ting Bian, Hui Qiu, Wangkai Jiang, An-Quan Xie, Xiao-Qiao Wang

{"title":"All-fibrous sandwich-structured humidity actuators enabling multimodal adaptive thermal comfort management","authors":"Lijun Yang, Xin-Long Qian, Zhi-Ting Bian, Hui Qiu, Wangkai Jiang, An-Quan Xie, Xiao-Qiao Wang","doi":"10.1016/j.cej.2025.168469","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168469","url":null,"abstract":"The human body's thermoregulation is intrinsically linked to thermal-moisture transfer. Wearable textile-based humidity actuators that adapt to human body microenvironments represent a promising approach for dynamic personal thermal management, an area that remains underexplored. Here, we present an all-fibrous sandwich-structured humidity actuator with multimodal thermal management capabilities. This actuator consists of uniaxially aligned hydrophilic polyvinyl alcohol nanofibers, hydrophobic poly(vinylidene fluoride-co-hexafluoropropylene) nanofibers, and silver nanowire (AgNW) layers. The asymmetric hygroscopicity and aligned nanofibers enable regular and large bending deformation that reversibly responds to humidity changes. Significantly, a warming mode maintaining 31.2 °C is operated when the actuator remains in a closed flat state under dry, cold conditions, with the low-emissivity AgNWs and all-fibrous architecture effectively suppressing heat dissipation; while skin perspiration-triggered opening under hot conditions activates a cooling mode maintaining 28.7 °C, permitting direct thermal convection, radiation, and moisture evaporation. Additionally, the electrically conductive AgNWs introduce an active heating mode for extremely cold conditions, enabling the actuator to readily achieve 37 °C at just 0.3 V. Wearable experiments demonstrate the actuator's practical applicability and effective comfort management. This all-fibrous, multi-dynamic humidity actuator provides a viable pathway toward energy-efficient smart textiles for personal thermal management across various environments.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"67 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Molecular isolation layer constructed by planar conjugated organic molecules for highly durable Na/K metal anodes 由平面共轭有机分子构建的高耐用Na/K金属阳极的分子隔离层

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-09-15 DOI: 10.1016/j.cej.2025.168520

Xinping Tao, Xiaolong Cheng, Yihong Gao, Licheng Miao, Huili Yu, Fanfan Liu, Pengcheng Shi, Yu Shao, Fangzhi Huang, Yu Jiang

{"title":"Molecular isolation layer constructed by planar conjugated organic molecules for highly durable Na/K metal anodes","authors":"Xinping Tao, Xiaolong Cheng, Yihong Gao, Licheng Miao, Huili Yu, Fanfan Liu, Pengcheng Shi, Yu Shao, Fangzhi Huang, Yu Jiang","doi":"10.1016/j.cej.2025.168520","DOIUrl":"https://doi.org/10.1016/j.cej.2025.168520","url":null,"abstract":"The uncontrollable growth of Na/K dendrites and the instability of the solid electrolyte interphase (SEI) layer pose significant challenges for the practical application of Na/K metal batteries. Herein, we propose the use of a protective layer constructed by using a novel copper hexadecafluorophthalocyanine (C32CuF16N8, denoted as CuPcF) electrolyte additive to address these issues. Both experimental and theoretical calculations reveal that the CuPcF molecule, with its planar conjugated ring structure and polar groups (−CF, −CN), can preferentially absorb onto the Na/K surface to construct a stable self-regulating protective layer. This layer aids in the redistribution of Na+/K+ flux, promotes rapid Na/K desolvation and transport kinetics, and encourages uniform Na/K deposition. The synergistic effect of the CuPcF additive enabled the Na symmetrical cell to cycle selectively for over 1600 h at 1.0 mA cm−2, while the high-voltage Na3V2(PO4)2F3 (NVPF)||Na full cell achieved an ultra-high energy density of 432.9 Wh kg−1 at 180.7 W kg−1. The effectiveness of CuPcF additive was also confirmed in K symmetric cell and the well-designed full cell. The relevant K symmetric cells maintained over 1000 h at 0.5 mA cm−2, and the K full cell exhibited excellent cycling stability (82 mAh g−1 over 1180 cycles at 10C). This work provides valuable insights for the development of protective layers to prevent dendrite formation in Na/K anodes.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"45 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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