Chemical Engineering Journal最新文献_第2页

Enhancing blue phosphorescent OLED efficiency by modulating the excited state of tetradentate Pt(II) complexes via N-embedding and steric hindrance effects 通过n包埋和位阻效应调节四齿Pt（II）配合物的激发态，提高蓝磷光OLED效率

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166619

Feng Zhan, Teng-Shuo Zhang, Jianqiang Chen, Kewei Xu, Jieying Tong, Yun-Fang Yang, Yuanbin She, Guijie Li

{"title":"Enhancing blue phosphorescent OLED efficiency by modulating the excited state of tetradentate Pt(II) complexes via N-embedding and steric hindrance effects","authors":"Feng Zhan, Teng-Shuo Zhang, Jianqiang Chen, Kewei Xu, Jieying Tong, Yun-Fang Yang, Yuanbin She, Guijie Li","doi":"10.1016/j.cej.2025.166619","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166619","url":null,"abstract":"Although tetradentate Pt(II) complexes show great potential for commercial blue phosphorescent organic light-emitting diodes (OLEDs), simultaneously achieving high efficiency and low efficiency roll-off remains challenging. Herein, we propose an effective strategy to modulate the excited states of emitters by embedding N atom into the benzimidazole moiety and adjusting the steric hindrance of the N-aryl substituent, effectively enhancing spin orbit coupling (SOC) and reducing the singlet-triplet energy gap (ΔEST), as demonstrated for four blue Pt(II) complexes (Pt1N-DTB, Pt1N-DIP, Pt4N-DTB, and Pt4N-DIP). The increased SOC and reduced ΔEST facilitated two spin-flip intersystem crossing (ISC) processes, which effectively reduced the excited-state lifetime, leading to a significant improvement in the external quantum efficiency (EQE) of the device while suppressing the efficiency roll-off. The excited-state lifetime of a proof-of-concept emitter, Pt1N-DTB, was drastically reduced to 1.47 μs compared to that of PtON-TBBI (2.50 μs). The device based on Pt4N-DIP achieved EQE of 33.0 % at 1000 cd/m2, which represents a record-high value among blue phosphorescent OLEDs based on Ir(III) and Pt(II) complexes with CIEy < 0.25. Furthermore, even at 10000 cd/m2, the Pt4N-DIP device maintained high EQE of 26.7 %, demonstrating minimal efficiency roll-off. This outstanding electroluminescent performance confirms the superiority of our molecular design strategy.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"24 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748127","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

Upcycled CuS/magnetic slag composites: A circular economy strategy for flue gas mercury remediation 升级cu /磁渣复合材料：烟气汞修复的循环经济策略

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166679

Xinyu Wu, Yifan Xu, Zehua Zhao, Houhu Zhang, Xunchang Fei

{"title":"Upcycled CuS/magnetic slag composites: A circular economy strategy for flue gas mercury remediation","authors":"Xinyu Wu, Yifan Xu, Zehua Zhao, Houhu Zhang, Xunchang Fei","doi":"10.1016/j.cej.2025.166679","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166679","url":null,"abstract":"Gaseous mercury (Hg0) emissions from industrial sources remain a pressing global environmental challenge, with conventional sorbent-based technologies limited by high costs and secondary contamination risks. This study introduces a sustainable waste-to-resource strategy, upcycling two underutilized industrial byproducts—iron-rich copper slag flotation tailings (CSFT) and acidic copper etching wastewater (ACEW)—into magnetic CuS-embedded sorbents via sulfurization-hydrothermal synthesis. By using CSFT as a stable magnetic matrix and ACEW as a copper precursor, this approach delivers dual benefits: efficient Hg0 capture and sustainable waste valorization. Under optimized conditions (pH 11, Cu/S molar ratio of 1:5, and ACEW dosage of 6 mL), the synthesized CuS-embedded composite demonstrates exceptional Hg0 removal performance, with a 27.7-fold increase in specific surface area compared to the acid-treated matrix. The composite achieves 99 % removal efficiency within 2 h under N2 and maintains over 80 % efficiency across three regeneration cycles. While its regeneration capacity remains inferior to that of magnetic sulfide-based sorbents synthesized from pure reagents, a techno-economic analysis reveals a 90 % cost reduction (material cost of 175 RMB/kg, energy consumption of 46.2 kWh) compared to conventional counterparts. This integrated strategy bridges mercury pollution control and industrial waste management, offering a scalable, cost-effective solution for atmospheric Hg0 remediation.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"26 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748129","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

Inorganic-microorganism hybrid system driven by cross-interface electron transfer: mechanism analysis and research progress on waste resource utilization 界面电子传递驱动的无机-微生物混合体系：废物资源化利用机理分析及研究进展

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166611

Siqi Li, Gefu Zhu

{"title":"Inorganic-microorganism hybrid system driven by cross-interface electron transfer: mechanism analysis and research progress on waste resource utilization","authors":"Siqi Li, Gefu Zhu","doi":"10.1016/j.cej.2025.166611","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166611","url":null,"abstract":"Inorganic materials-anaerobic microorganism hybrid systems have become a breakthrough platform for environmental and energy applications. By utilizing the synergistic effects between abiotic and biotic components, these systems achieve remarkable efficiency in pollutant degradation, resource conversion, and energy recovery. This paper systematically reviews the construction strategies and cross-interface synergistic mechanisms of such hybrid systems, classifying them into three categories: suspended mixed, microbial self-synthesis, and intracellular bound, while also summarizing compatible anaerobic microorganisms. The key interaction processes between inorganic materials and microorganisms are analyzed in depth, focusing on interfacial electron transfer mechanism, metabolic environment regulation, community function enhancement, and directional control of electron flow. At the application level, this paper summarizes the innovative progress of the system in semi-artificial photosynthesis, biological hydrogen production, wastewater treatment, and organic waste anaerobic digestion, highlighting its strategic value for sustainable environmental technologies. Finally, this paper proposes key challenges that need to be paid attention to in the future, such as precise material function modulation, mechanistic interface studies, and scalable system integration, to provide theoretical foundations and development pathways for interdisciplinary advances and practical implementation in this field.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"52 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748130","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

Regulating the anchoring structure to enhance thermostability of Ru sub-nano clusters on Al-based supports for efficient CO bonds hydrogenolysis 调节锚定结构以提高铝基载体上Ru亚纳米团簇的热稳定性，促进CO键的高效氢解

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166661

Hongfei Xiao, Jianghao Zhang, Shuchao Ge, Chuo Du, Yifan Jin, Yuanyuan Xie, Chao Gai, Jinhou Fang, Changbin Zhang

{"title":"Regulating the anchoring structure to enhance thermostability of Ru sub-nano clusters on Al-based supports for efficient CO bonds hydrogenolysis","authors":"Hongfei Xiao, Jianghao Zhang, Shuchao Ge, Chuo Du, Yifan Jin, Yuanyuan Xie, Chao Gai, Jinhou Fang, Changbin Zhang","doi":"10.1016/j.cej.2025.166661","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166661","url":null,"abstract":"Heterogeneous catalysts with highly dispersed active metal species have found wide applications in the catalytic conversion of lignocellulosic biomass, owing to the inherent advantages in metal atom efficiency. However, it is still confronted with the challenge of developing efficient strategies to achieve enhanced thermostability of the highly dispersed metal under harsh conditions. In this work, Ru species are supported by two different aluminum-based materials (i.e., γ-AlOOH and γ-Al2O3) that provide distinct anchoring sites for Ru. Complementary characterizations combined with theoretical calculations demonstrate that, compared with the triply bridging Al<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>O site of γ-Al2O3, the doubly bridging Al<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>O site of AlOOH exhibits more intense electronic interaction with Ru species. Consequently, this doubly bridging Al<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>O site as the anchoring site provides sufficient thermal resistance to immobilize the sub-nanometer Ru species under the high-temperature aging condition. The maintained high dispersion of Ru on AlOOH sustains the high activity (5.2 min−1) and selectivity (75 %) in the production of aromatics during the hydrotreating of diphenyl ether. This work may contribute to the catalyst design for manipulating the surface-anchoring structure to regulate thermostability and dispersion of supported metal catalysts.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"96 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756340","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

Simultaneous exciton control and electron recycling in pyrene-based stable blue fluorescent organic light-emitting diodes via hybridized local and charge transfer and triplet-triplet fusion mechanisms 基于杂化局域和电荷转移和三重态-三重态融合机制的芘基稳定蓝色荧光有机发光二极管的激子控制和电子循环

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166658

Yi Sak Lee, Heejun Nam, You Na Song, Wan Pyo Hong, Won-Sik Han, Taekyung Kim

{"title":"Simultaneous exciton control and electron recycling in pyrene-based stable blue fluorescent organic light-emitting diodes via hybridized local and charge transfer and triplet-triplet fusion mechanisms","authors":"Yi Sak Lee, Heejun Nam, You Na Song, Wan Pyo Hong, Won-Sik Han, Taekyung Kim","doi":"10.1016/j.cej.2025.166658","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166658","url":null,"abstract":"While anthracene-based fluorescent materials utilizing triplet–triplet fusion (TTF) can theoretically achieve internal quantum efficiencies (IQEs) up to 62.5 %, their performance is hindered by non-emissive high-lying triplet state (Tn, n ≥ 2) excitons and instability caused by electron leakage. To address this, we report a pyrene-based fluorescent emitter, 9-(4-(6-(4-(1-phenyl-1H-benzo[d]imidazol-2-yl)phenyl)pyren-1-yl)phenyl)-9H-carbazole (p-CPI), which simultaneously exhibits TTF and hybridized local and charge transfer (HLCT) characteristics. Transient electroluminescence (TrEL) and magneto-electroluminescence (MEL) measurements confirm that the HLCT pathway facilitates high-lying reverse intersystem crossing (hRISC), allowing non-radiative triplet excitons to contribute to emission, thereby suppressing triplet-related quenching and enhancing device stability. As a result, a non-doped p-CPI device achieves an LT70 (the time taken for the luminance to decrease to 70 % of its initial value) of 115 h, corresponding to more than a 50-fold improvement in operational lifetime compared to a conventional TTF-based device. Furthermore, when used as an electron harnessing and recycling (EHR) layer between the emissive layer (EML) and electron blocking layer (EBL), p-CPI captures and recycles leakage electrons while protecting the EBL from degradation, resulting in a slightly improved external quantum efficiency (EQE) of 7.49 % and extending the operational lifetime to an LT70 of 27 h, more than a twofold enhancement compared to the reference device. This dual-channel exciton management and EHR strategy offers a promising approach for overcoming the long-standing efficiency-lifetime trade-off in blue fluorescent organic light-emitting diodes (OLEDs).","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"733 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756603","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

Biocasting bioorthogonal gelatin with expanded primary hepatocytes to engineer therapeutic liver grafts for acute liver failure 生物铸造生物正交明胶扩大原代肝细胞工程治疗肝移植急性肝功能衰竭

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166655

Siqi Li, Tiemei Zheng, Yusen Li, Xiaoli Wang, Yanjun Jiang, Pengyu Huang

{"title":"Biocasting bioorthogonal gelatin with expanded primary hepatocytes to engineer therapeutic liver grafts for acute liver failure","authors":"Siqi Li, Tiemei Zheng, Yusen Li, Xiaoli Wang, Yanjun Jiang, Pengyu Huang","doi":"10.1016/j.cej.2025.166655","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166655","url":null,"abstract":"Therapeutic liver grafts (Livergraft, 10 mm × 3 mm) were developed by biocasting bioorthogonal gelatin with in vitro-expanded primary hepatocytes (3 × 107 cells/mL). The bioorthogonal gelatin composed of methyltetrazine-modified gelatin (Gel-T) and norbornene-modified gelatin (Gel<img alt=\"single bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" style=\"vertical-align:middle\"/>N), which were synthesized by reacting methyltetrazine-NHS ester and cis-5-Norbornene-endo-2,3-dicarboxylic anhydride with the amino groups of gelatin, respectively. Uniform mixing of in vitro-expanded primary hepatocytes with Gel-T and Gel-N triggered an immediate bioorthogonal reaction between norbornene and methyltetrazine, resulting in solidification to form Livergraft within 10 min. The resulting Livergraft exhibited a well-defined 3D architecture with pore sizes of 100–400 μm. Remarkably, hepatocytes within Livergraft proliferated and self-organized into cell aggregates with an average diameter of 118 μm after three days of in vitro 3D culture. This strategy was faclie and efficient, requiring neither external triggers (e.g., UV light), Matrigel pre-incubation, nor specialized equipment. Livergraft transplantation effectively compensated liver function in mice undergoing 90 % hepatectomy, with five out of twelve mice surviving long-term. On the 5th day after hepatectomy, the caudate lobe was significantly enlarged, and the liver function indicators (ALT, AST, and ALP) were consistent with those of normal mice. Comparative characterization demonstrated that bioorthogonal gelatin outperformed GelMA in supporting hepatocyte function and tissue formation, demonstrating its potential as a promising material for functional liver tissue fabrication.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"15 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756614","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

Insights into the multiple nitrogen removal mechanisms of anammox consortia induced by iron scraps 废铁诱导厌氧氨氧化菌多重脱氮机制研究

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166665

Shuyan Yin, Yi-Xuan Wang, Muyu Li, Na Li, Cheng Hou, Xinbai Jiang, Jinyou Shen

{"title":"Insights into the multiple nitrogen removal mechanisms of anammox consortia induced by iron scraps","authors":"Shuyan Yin, Yi-Xuan Wang, Muyu Li, Na Li, Cheng Hou, Xinbai Jiang, Jinyou Shen","doi":"10.1016/j.cej.2025.166665","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166665","url":null,"abstract":"Iron plays a crucial role in the metabolic process of anammox bacteria. This study demonstrates that iron scraps play a pivotal role in diversifying nitrogen removal pathways in anammox consortia. Under reduced nitrite supply, long-term exposure to iron scraps induced nitrate-dependent Fe(II) oxidation (NDFO) and ammonium-dependent Fe(III) reduction (Feammox) processes, achieving 94.46 % ammonia removal at an NO2−-N/NH4+-N ratio of 1.0. Fe(III) and iron precipitates dominated in the system, forming ferricrust on anammox granules. Microbial analysis revealed the enrichment of Candidatus Brocadia, Denitratisoma, and Geobacter, which synergistically formed a cross-feeding network that accelerated the Fe-N cycle via coupled anammox, NDFO, and Feammox pathways. Metagenomic analysis further confirmed that iron scraps enhanced the metabolic activity and energy generation capacity of the anammox consortia, with nirS gene abundance increasing by 6.49 %. Overall, the introduction of iron scraps expands the nitrogen removal metabolic network within anammox consortia, establishing a synergistic relationship between the canonical anammox pathway and both NDFO and Feammox processes for enhanced nitrogen elimination.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"26 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748125","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

Enhanced CO2 reduction by N-doped C-coated anatase/rutile/NH2-MIL-125(Ti) heterojunctions at low light intensity without sacrificial agents 无牺牲剂的n掺杂c包覆锐钛矿/金红石/NH2-MIL-125（Ti）异质结在低光强下增强CO2还原

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166615

Jiepeng Zhao, Yifei Ma, Zijian Li, Zhaomin Tong, Mei Wang, Liantuan Xiao, Suotang Jia, Xuyuan Chen

{"title":"Enhanced CO2 reduction by N-doped C-coated anatase/rutile/NH2-MIL-125(Ti) heterojunctions at low light intensity without sacrificial agents","authors":"Jiepeng Zhao, Yifei Ma, Zijian Li, Zhaomin Tong, Mei Wang, Liantuan Xiao, Suotang Jia, Xuyuan Chen","doi":"10.1016/j.cej.2025.166615","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166615","url":null,"abstract":"This study presents the design of a composite photocatalyst that harnesses the combined effects of internal and external heterojunctions for enhanced performance. The internal heterojunction is achieved by annealing NH2-MIL-125(Ti) (NM) under an argon atmosphere, forming an N-doped C-coated anatase/rutile heterostructure (A-NM). By controlling the annealing temperature, the A-NM prepared at 650 °C (A650-NM) demonstrates superior photocatalytic CO2 reduction capability, with an outstanding CO production rate of 0.25 μmol h−1 g−1 under a light intensity of 0.1 W cm−2. An external heterojunction is then created by combining NM and A650-NM in an optimized ratio. At an optimal composite ratio of 9:1 (NM: A650-NM), the CO production rate reached 6.3 μmol h−1 g−1, which is 3.5 times higher than NM and 25 times higher than A650-NM. Characterization and DFT analyses reveal that the improved performance stems from the internal heterojunction within A650-NM's TiO2 crystal phases and the external heterojunction between NM and A650-NM, which enhanced charge separation and carrier mobility. The N-doped carbon layer further boosts charge carrier transfer efficiency. This work introduces a novel Metal–Organic Framework (MOF)-based photocatalyst for CO2 reduction, offering valuable theoretical insights and practical strategies for optimizing its performance.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"26 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748000","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

Self-powered drifting buoy for maritime anomaly traffic monitoring via electromagnetic-triboelectric coupling 基于电磁-摩擦-电耦合的海上异常交通监测自供电漂流浮标

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166536

Hanlin Zhou, Zhiqiang Yang, Zhi Cao, Junbo Wang, Hao Qian, Jizhong Deng, Yuxuan Zhou, Yingwei Zhao, Hailin Fu, Zhiyi Wu

{"title":"Self-powered drifting buoy for maritime anomaly traffic monitoring via electromagnetic-triboelectric coupling","authors":"Hanlin Zhou, Zhiqiang Yang, Zhi Cao, Junbo Wang, Hao Qian, Jizhong Deng, Yuxuan Zhou, Yingwei Zhao, Hailin Fu, Zhiyi Wu","doi":"10.1016/j.cej.2025.166536","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166536","url":null,"abstract":"Enhancing maritime anomaly traffic monitoring is vital for national security, combating smuggling, and preventing human trafficking. In this work, we designed a self-powered drifting buoy (SDB) based on electromagnetic-triboelectric coupling for maritime anomaly traffic monitoring. The buoy shell adopts a self-righting structure combined with a low center of gravity to prevent capsizing and enable rapid self-righting. The integrated electromagnetic generator (EMG) within the SDB achieves self-powering functionality, eliminating the need for battery replacement or external power sources. In addition, the built-in corrective magnet establishes the SDB's directional reference at sea. Four integrated triboelectric nanogenerator (TENG) sensors detect wave directions through voltage generated during wave-induced tilting. Coupled with built-in satellite positioning and wireless communication modules, the SDB achieves real-time monitoring and transmission of wave directions and geographical positions to coastal terminals. By deploying multiple buoys as a networked array, coastal terminals can comprehensively analyze real-time vessel positions, moving directions, and speeds through wave data transmitted from each node. This buoy-based monitoring approach provides a novel self-powered solution for maritime traffic monitoring and management.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"27 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756606","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

Unveiling the heterogeneity of cellulose separators and lignin-derived electrodes fabricated from different bamboo tissues in supercapacitors application 揭示纤维素分离器和木质素衍生电极在超级电容器中应用的异质性

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-07-31 DOI: 10.1016/j.cej.2025.166645

Si-Meng Chen, Ling-Hua Xu, Chen Zhang, Bo Wang, Jia-Long Wen, Tong-Qi Yuan

{"title":"Unveiling the heterogeneity of cellulose separators and lignin-derived electrodes fabricated from different bamboo tissues in supercapacitors application","authors":"Si-Meng Chen, Ling-Hua Xu, Chen Zhang, Bo Wang, Jia-Long Wen, Tong-Qi Yuan","doi":"10.1016/j.cej.2025.166645","DOIUrl":"https://doi.org/10.1016/j.cej.2025.166645","url":null,"abstract":"Bamboo, as a natural and sustainable biomass materials has garnered significant attention due to its wide distribution, rapid growth, and considerable economic value. However, bamboo is composed of fibers (F) and parenchyma (P) cells with different anatomical structures and chemical compositions, which present challenges for efficient deconstruction and high-value conversion. Herein, we used microwave-assisted maleic acid (MA) treatment to effectively deconstruct the main components of different bamboo tissues (bamboo powder, F and P), further achieved the preparation of lignin-containing cellulose nanofibrils (LCNFs)-based separators and lignin-based electrode materials. Then, their differences in physicochemical properties and application performance were comprehensively analyzed and compared. The results showed that the prepared LCNFs separators exhibited excellent mechanical strength and stable thermal properties. Specially, the LCNFs separator prepared from bamboo powder (B-LCNF-S) had the highest diameter size (15.7 ± 1.8 nm), porosity (69 %), and electrolyte absorption rate (296 %), which effectively promoted the ion transport. In addition, the lignin-based carbon materials derived from F exhibited the highest specific surface area (1373.31 m2 g−1) and total pore volume (0.99 cm3 g−1), and specific capacity. Finally, LCNFs separators and the corresponding lignin-based electrodes were further assembled into symmetrical supercapacitors, which showed significant differences in electrochemical performance. This study provides valuable insights into the efficient deconstruction and targeted conversion of different bamboo tissues, offering a pathway to harness bamboo's unique structural and chemical properties for advanced energy storage applications.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"14 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144756611","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