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Inflammation-responsive biomimetic nanoparticles for targeted acute pancreatitis therapy 靶向治疗急性胰腺炎的炎症反应仿生纳米颗粒
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169612
Lu Liu, Shujun Chen, Jie Zhong, Yiping Zhu, Tiantian Luo, Yu Pu, Xiaoming Zhang, Jun Deng, Xinghui Li
{"title":"Inflammation-responsive biomimetic nanoparticles for targeted acute pancreatitis therapy","authors":"Lu Liu, Shujun Chen, Jie Zhong, Yiping Zhu, Tiantian Luo, Yu Pu, Xiaoming Zhang, Jun Deng, Xinghui Li","doi":"10.1016/j.cej.2025.169612","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169612","url":null,"abstract":"Acute pancreatitis (AP) is a rapidly progressing and life-threatening inflammatory disease. Traditional medications have limitations such as a short half-life, low bioavailability, monofunctionality, and notable side effects, making it difficult to inhibit the progression of AP. We developed a biomimetic nanomedicine (MDU@Mn) that is responsive to and targets the pancreatic inflammatory microenvironment; the medicine consists of polydopamine nanoparticles coloaded with ulinastatin (U) and manganese ions and encapsulated with macrophage membranes. MDU@Mn evades immune system clearance, promotes nanoparticle enrichment at sites of inflammation, and exhibits improved bioavailability and a relatively long half-life. In addition, it specifically releases U and manganese ions in regions of the pancreas with low pH and high Reactive Oxygen Species (ROS) levels for image-guided therapy with fewer side effects. In vitro and in vivo studies demonstrated that MDU@Mn has excellent therapeutic and magnetic resonance imaging capabilities and can significantly reduce the levels of relevant indicators of inflammation in the pancreatic microenvironment (ROS, inflammatory cells, enzymes, etc.), preventing further expansion of inflammation. This study provides a new strategy for constructing a responsive multifunctional diagnostic and therapeutic platform for inflammatory microenvironments.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"1 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283887","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
Robust CoP-based bifunctional electrodes for 13.2 % efficient PV-driven water electrolysis in alkaline medium 稳健的钴基双功能电极,用于13.2 %高效的碱性介质中pv驱动的水电解
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169547
Ahmed Zaki Alhakemy, Tarek A. Kandiel
{"title":"Robust CoP-based bifunctional electrodes for 13.2 % efficient PV-driven water electrolysis in alkaline medium","authors":"Ahmed Zaki Alhakemy, Tarek A. Kandiel","doi":"10.1016/j.cej.2025.169547","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169547","url":null,"abstract":"The development of robust and efficient bifunctional non-precious metal-based electrodes for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is pivotal for enhancing the performance of PV-water electrolysis systems. In this study, we report a facile, one-step electrodeposition method for decorating stainless steel felt (SSF) with amorphous cobalt phosphate/phosphide (CoP) nanoparticles, yielding binder-free, conductive, and mechanically robust electrodes for HER and OER reactions in an alkaline environment. Benefiting from the homogeneous nanoparticle deposition, porosity, increased electrochemical surface area (ECSA), and strong interfacial contact between the CoP and SSF substrate, the optimized CoP@SSF electrode demonstrated outstanding OER performance, achieving overpotentials of 235 and 282 mV at current densities of 10 and 100 mA cm<sup>−2</sup>, respectively, with a Tafel slope of 51 mV dec<sup>−1</sup>. For HER, the same electrode exhibited an overpotential of 165 and 248 mV at 10 and 100 mA cm<sup>−2</sup>, respectively, with a Tafel slope of 65 mV dec<sup>−1</sup>, evincing that the developed electrode has bifunctionality and can serve at the OER and HER sides. Durability tests confirmed excellent stability over 25 h under continuous operation at 50 mA cm<sup>−2</sup>. Additionally, a laboratory-scale PV-water electrolyzer consisting of a triple junction InGaP/InGaAs/Ge solar cell and CoP@SSF bifunctional electrodes achieved a solar-to‑hydrogen conversion efficiency of 13.2 %. This work introduces a rapid and scalable strategy for developing robust CoP-based bifunctional electrodes, providing a promising route for demonstrating high-performance PV-water electrolysis systems for green hydrogen production from an alkaline medium.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"35 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283890","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
Biodegradable polylactic acid (PLA) copolymer materials: Structural design, synthesis strategy, the relationship between structure and performance, industrial application 生物可降解聚乳酸(PLA)共聚物材料:结构设计、合成策略、结构与性能的关系、工业应用
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169602
Rongrong Ji, Fan Mo, Linwei Liang, Chen Tian, Shixing Dong, Chang Deng, Hao Wu, Ling Zhou, Xipo Zhao
{"title":"Biodegradable polylactic acid (PLA) copolymer materials: Structural design, synthesis strategy, the relationship between structure and performance, industrial application","authors":"Rongrong Ji, Fan Mo, Linwei Liang, Chen Tian, Shixing Dong, Chang Deng, Hao Wu, Ling Zhou, Xipo Zhao","doi":"10.1016/j.cej.2025.169602","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169602","url":null,"abstract":"Polylactic acid (PLA) is a sustainable polymer renowned for its excellent biocompatibility and biodegradability, and it has found widespread applications in biomedicine, packaging, and additive manufacturing. However, its inherent brittleness and the challenges associated with controlling its degradation rate significantly limit broader utilization. To address these issues, various PLA-based copolymers—such as block, graft, alternating, and random copolymers—have been developed via copolymerization strategies. In this review, we systematically examine the classification, synthetic methodologies, and structure-property relationships of PLA copolymers within an integrated “structure-performance-application” framework, highlighting their applications in biomedical engineering, 3D printing, and sustainable packaging. By providing a comprehensive analysis of design strategies and performance optimization, this work offers both theoretical insights and practical guidance for advancing multifunctional, high-performance PLA-based materials, and outlines prospects for their future development in biomedicine, green materials, and advanced manufacturing.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"12 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283895","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
Hydrogen storage via clathrate hydrates under mild conditions enabled by mixed cyclic ether synergy 混合循环醚协同作用在温和条件下通过笼形水合物储氢
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169469
Emmerson Hondo, Gaurav Vishwakarma, Nur F.T. Arifin, Praveen Linga
{"title":"Hydrogen storage via clathrate hydrates under mild conditions enabled by mixed cyclic ether synergy","authors":"Emmerson Hondo, Gaurav Vishwakarma, Nur F.T. Arifin, Praveen Linga","doi":"10.1016/j.cej.2025.169469","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169469","url":null,"abstract":"Hydrogen (H<sub>2</sub>) storage via clathrate hydrates represents a compelling strategy for sustainable energy solutions. However, slow formation kinetics and rigorous thermodynamic conditions pose significant barriers to their widespread implementation. Here, we present a molecularly tailored approach using mixed cyclic ether promoters, 1,3-dioxane (DXN) and 1,3-dioxolane (DIOX), in deuterium oxide (D<sub>2</sub>O) to significantly enhance H<sub>2</sub> storage under mild, and practically relevant conditions. We tasted H<sub>2</sub> enclathration across various parameters, including promoter ratios, formation temperatures, promoter concentrations, multiple reformation cycles, and initial H<sub>2</sub> pressures. Our optimized formulation 2DXN-1DIOX (5.56 mol%) achieves superior H<sub>2</sub> uptake of 43.77 43.77 ± 2.68 mmol H<sub>2</sub>/mol D<sub>2</sub>O at 274.45 K and 12.5 MPa, which reproducibly increases to 56.12 ± 0.58 mmol H<sub>2</sub>/mol D<sub>2</sub>O at 18.5 MPa, driven by structural and kinetic synergy between DXN and DIOX molecules. Powder X-ray diffraction confirmed the formation of structure II (sII) hydrates, while Raman spectroscopy elucidated molecular-level details of structural heterogeneity, revealing how promoter-induced lattice flexibility enhances H<sub>2</sub> diffusion and promotes efficient hydrate cage accessibility within the hydrate framework. Complementary thermodynamic phase equilibrium investigations established that the mixed-promoter system considerably expands the hydrate stability envelope toward milder pressures and temperatures, further highlighting its potential. Collectively, this work reveals how mixed cyclic ether promoters synergistically enhance H<sub>2</sub> enclathration and hydrate stability under practical conditions, thereby providing a molecular design framework to advance clathrate-based H<sub>2</sub> storage toward commercial viability.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"1 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283577","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
Engineered cell-laden hemostatic hydrogels for all-round rapid repair of diabetic wounds 用于糖尿病伤口全面快速修复的工程化细胞止血水凝胶
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169544
Malay Nayak, Durba Banerjee, Devyani Yenurkar, Snehasish Mandal, Lipi Pradhan, Arnab Sarkar, Sudip Mukherjee
{"title":"Engineered cell-laden hemostatic hydrogels for all-round rapid repair of diabetic wounds","authors":"Malay Nayak, Durba Banerjee, Devyani Yenurkar, Snehasish Mandal, Lipi Pradhan, Arnab Sarkar, Sudip Mukherjee","doi":"10.1016/j.cej.2025.169544","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169544","url":null,"abstract":"The complex microenvironment of diabetic wounds, characterized by persistent inflammation, impaired angiogenesis, and compromised hemostasis, severely delays healing and presents a significant clinical challenge. Current therapies often lack the multi-faceted approach required to address these interwoven pathologies effectively. Herein, we present a novel cell-based therapeutic platform: precision-engineered human embryonic kidney (HEK 293T) cells encapsulated within alginate hydrogels, designed for diabetic wound repair and liver hemostasis. HEK 293T cells are stably engineered <em>via</em> a PiggyBac transposon system to co-express pro-angiogenic human Vascular Endothelial Growth Factor A (hVEGFA), hemostatic Factor VIII (hFVIII), and immunomodulatory Interleukin-10 (hIL10), ensuring sustained secretion of these therapeutic factors. <em>In vitro</em> studies confirmed hVEGFA-mediated elevation of cell migration and wound closure, hFVIII stimulated acceleration of blood clotting, and hIL10's role as a potent anti-inflammation reducing oxidative stress. A combination of hVEGFA, hFVIII, and hIL10 notably achieved superior <em>in vitro</em> and <em>in vivo</em> wound healing. In a diabetic rat full-thickness excisional wound model, administration of these engineered cell-laden hydrogels significantly accelerated wound closure within 2 weeks. Furthermore, cell-secreted hFVIII demonstrated remarkable hemostatic efficacy when mixed with human blood <em>ex vivo</em> and in a liver puncture model, reducing activated partial thromboplastin time, blood loss, and clotting time <em>in vivo</em>. On the other hand, capsules did not show any xenogeneic effect and immunogenicity in the long term. This multi-functional cell-based hydrogel system offers a comprehensive and promising platform for rapid attenuation of homeostasis for rapid diabetic wound healing.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"53 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283885","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-floating COF/chitosan aerogel for light-induced enhanced gold recovery 自浮COF/壳聚糖气凝胶在光诱导下提高金回收率
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169554
Weikang Guo, Yufeng Wang, Zhikai Wang, Yingji Zhao, Qin Shuai, Zhaochu Hu, Yusuke Yamauchi, Lijin Huang
{"title":"Self-floating COF/chitosan aerogel for light-induced enhanced gold recovery","authors":"Weikang Guo, Yufeng Wang, Zhikai Wang, Yingji Zhao, Qin Shuai, Zhaochu Hu, Yusuke Yamauchi, Lijin Huang","doi":"10.1016/j.cej.2025.169554","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169554","url":null,"abstract":"Covalent organic frameworks (COFs) have attracted significant attention as photostimulus-responsive adsorbents for selective gold (Au) recovery. However, their practical scalability is hindered by issues such as particle agglomeration, high costs, and limited light utilization efficiency. Herein, a cost-efficient self-floating COF/chitosan (CS) aerogel is developed that significantly enhances gold recovery efficiency under light irradiation. The incorporation of CS not only reduces the cost, but also endows the resulting COF/CS aerogel with self-floating ability, accelerating the utilization efficiency of light. Benefiting from synergistic effects of coordination interaction, chemical reduction, photothermal, and photocatalytic reduction, this new COF/CS aerogel achieves a high adsorption capacity of 2152 mg g<sup>−1</sup> and fast equilibrium kinetics. In addition, the aerogel demonstrates excellent selectivity in recovering gold from real electronic waste (e-waste) leachates. Furthermore, the capture mechanisms of Au(III) by the resulting COF/CS aerogel are verified by spectroscopic and electrochemical analyses. This study underscores the significant potential of the self-floating COF aerogel as a practical solution for the light-induced enhanced extraction of gold from e-waste, positioning it for large-scale applications in sustainable resource management.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"54 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283889","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
Green modification technology: acylation-glycosylation co-modification of walnut protein and its application in the stabilized encapsulation of lutein 绿色修饰技术:核桃蛋白酰化-糖基化共修饰及其在叶黄素稳定包封中的应用
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169595
Yuanli Wang, Yue Wang, Zilin Wang, Wenjian Wang, Yifan Zhou, Jun Sheng, Yang Tian, Liang Tao
{"title":"Green modification technology: acylation-glycosylation co-modification of walnut protein and its application in the stabilized encapsulation of lutein","authors":"Yuanli Wang, Yue Wang, Zilin Wang, Wenjian Wang, Yifan Zhou, Jun Sheng, Yang Tian, Liang Tao","doi":"10.1016/j.cej.2025.169595","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169595","url":null,"abstract":"To enhance the poor functional characteristics and low utilization of walnut protein isolate (WNPI), this study treated WNPI with succinic anhydride (SA) and xanthan gum (XG), analyzing the structure and functionality of acylated-glycosylated WNPI (WNPI-SA-XG). Furthermore, a dual-modified protein (DMP) with excellent gelation and emulsifying properties, prepared by adding 0.6 % XG, was selected to modify liposomes (LIP) encapsulating lutein (LUT). The protective effect of DMP-modified LIP on the stability of LUT was investigated. The results indicated that combined modification could unfold the protein structure, enhance intermolecular electrostatic repulsion to reduce molecular aggregation, improve protein flexibility, and thereby enhance its functional characteristics. Specifically, it increased the viscosity and network structure of WNPI. The water-holding capacity and oil-holding capacity of the protein increased by approximately 5.3 times and 1.6 times, respectively. Its emulsifying property and emulsion stability improved by 15.25 % and 11.13 %, respectively, and the thermal denaturation temperature rose by 19.34 °C. DMP modification elevated the encapsulation efficiency of lutein-loaded liposomes (LUT-LIP), enhanced the antioxidant activity of LUT (with DPPH scavenging rate and ABTS scavenging rate increasing by 1.40 times and 3.80 times, respectively), and improved its storage and environmental stability (the retention rate after 30 days of storage at 25 °C was 7.17 times that of LUT-LIP) as well as gastrointestinal digestive stability (with a 24.68 % reduction in release during the gastric phase). This study offered a theoretical basis and technical support for applying modified WNPI and proposed a feasible strategy for utilizing double modified protein-lutein-liposome (DMP-LUT-LIP) as an efficient nutraceutical delivery system.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"20 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283578","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
Bithiazole derivative as a solid additive endows organic solar cells with enhanced photovoltaic performance 双噻唑衍生物作为固体添加剂赋予有机太阳能电池增强的光伏性能
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169567
Wentao Miao, Ting Wang, Jiajun Huang, Liangliang Chen, Xunchang Wang, Chaoxu Li, Renqiang Yang
{"title":"Bithiazole derivative as a solid additive endows organic solar cells with enhanced photovoltaic performance","authors":"Wentao Miao, Ting Wang, Jiajun Huang, Liangliang Chen, Xunchang Wang, Chaoxu Li, Renqiang Yang","doi":"10.1016/j.cej.2025.169567","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169567","url":null,"abstract":"The dual-additive strategy, which combines solid additives and solvent additives, holds great promise yet remains challenging for synergistically optimizing the molecular orientation and crystalline behaviors of photoactive materials. Herein, a newly designed solid additive, 5,5′-bis(dimethoxymethyl)-2,2′-bithiazole (BTz) was synthesized. Characterized by a rigid planar structure and uneven electron distribution, BTz has robust molecular interaction with non-fullerene acceptors, which effectively optimized the crystallinity and molecular stacking of Y6. By combining the traditional solvent additive 1-chloronaphthalene (CN), the dual-additive approach facilitated more ordered self-assembly of the acceptors in the blend films with bi-continuous interpenetrating networks. The morphology optimization of the active layer promoted more efficient charge dynamics and synergistically enhanced the key photovoltaic parameters of the devices, including open-circuit voltage, short-circuit current and fill factor. Compared to the benchmark devices processed with CN alone, the additional incorporation of BTz boosted the power conversion efficiencies of PM6:Y6-, PM6:L8-BO- and D18:L8-BO-based systems to 19.02 %, 19.58 % and 20.04 %, respectively, which implies the effectiveness and universality of the dual-additive strategy in optimizing the performance of non-fullerene organic solar cells.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"78 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283892","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
Hydrogen spillover in Ru/Cr2O3 enhances alkaline hydrogen evolution reaction activity Ru/Cr2O3中的氢溢出增强了碱性析氢反应活性
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169546
Dunyuan Jin, Yirong Zhai, Longxiang Wang, Guiqiang Li
{"title":"Hydrogen spillover in Ru/Cr2O3 enhances alkaline hydrogen evolution reaction activity","authors":"Dunyuan Jin, Yirong Zhai, Longxiang Wang, Guiqiang Li","doi":"10.1016/j.cej.2025.169546","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169546","url":null,"abstract":"Hydrogen energy, as a pivotal medium for large-scale deployment of renewable energy, demands efficient production pathways, which hinge critically on breakthroughs in the activity and stability of alkaline hydrogen evolution reaction (HER) catalysts. Addressing the sluggish water dissociation kinetics and constrained hydrogen spillover pathways associated with Ru-based catalysts in alkaline media, we propose a multi-interface engineered Ru/Cr<sub>2</sub>O<sub>3</sub>/Cu composite catalyst. In this system, ultrafine Ru nanoparticles are supported on a Cr<sub>2</sub>O<sub>3</sub> scaffold embedded with highly conductive Cu particles. The intimate Cu–Cr<sub>2</sub>O<sub>3</sub> interfaces form an integrated electron transport network, while protons generated from water dissociation on Cr<sub>2</sub>O<sub>3</sub> surfaces are efficiently transferred to Ru active sites via interfacial hydrogen spillover. Simultaneously, the Ru/Cr<sub>2</sub>O<sub>3</sub> heterojunction modulates the hydrogen adsorption strength on Ru, synergistically accelerating both the Volmer and Tafel steps. Experimental results demonstrate that this catalyst achieves a current density of 10 mA cm<sup>−2</sup> at an ultralow overpotential of only 18 mV in 1.0 M KOH, while maintaining stable operation at 100 mA cm<sup>−2</sup> and 200 mA cm<sup>−2</sup> for over 100 h. This work demonstrates an effective strategy for interfacial engineering in high-performance alkaline HER catalysts, and provides insights into the coupling of conductivity modulation and hydrogen spillover at the atomic scale.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"27 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283571","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
Cobalt-embedded carbon nanotube-bridged hollow carbon cubes enabling electro n/ion co-transport and catalytic conversion in lithium-sulfur batteries 嵌入钴的碳纳米管桥接的空心碳立方体,可在锂硫电池中实现电子/离子共输运和催化转化
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-10-13 DOI: 10.1016/j.cej.2025.169590
Xinyu Yan, Bin Yue, Lin Li, Yuqi Wang, Ying Fang, Ye Li, Yang Su, Jinxian Wang, Wensheng Yu, Xiangting Dong
{"title":"Cobalt-embedded carbon nanotube-bridged hollow carbon cubes enabling electro n/ion co-transport and catalytic conversion in lithium-sulfur batteries","authors":"Xinyu Yan, Bin Yue, Lin Li, Yuqi Wang, Ying Fang, Ye Li, Yang Su, Jinxian Wang, Wensheng Yu, Xiangting Dong","doi":"10.1016/j.cej.2025.169590","DOIUrl":"https://doi.org/10.1016/j.cej.2025.169590","url":null,"abstract":"Lithium‑sulfur (Li−S) batteries have attracted tremendous attention as next-generation energy storage systems due to their exceptional theoretical energy density (2600 Wh kg<sup>−1</sup>). Despite their great promise, the large-scale application of Li−S batteries is still hindered by critical challenges, particularly the lithium polysulfide shuttle phenomenon and sluggish kinetics during sulfur-based redox reactions. This research introduces an innovative cathode architecture that consists of hollow carbon cubes integrated with carbon nanotubes and cobalt nanoparticles (HCCs-Co-CNTs), aiming to mitigate the previously discussed issues. The HCCs-Co-CNTs possess structure featuring cobalt-embedded carbon nanotubes to bridge hollow carbon cubes, forming a multi-scale and interconnected structure. The design enables synergistic enhancement of Li−S battery performances through several mechanisms: The hollow carbon cubes provide a continuous conductive framework for efficient electron transport; The interconnected carbon structure improves electrical conductivity across the cathode; Carbon nanotubes (CNTs) directly grown on the surfaces of the cubes establish continuous conductive networks, resulting in a three-dimensional ion transport network to facilitate lithium-ion diffusion. Meanwhile, cobalt nanoparticles embedded within the nanotubes act as catalytic centers, improving the chemical interaction with polysulfides and facilitating their catalytic transformation, enabling coordinated regulation of electrons, ions, and reactants. This synergistic design enables the HCCs-Co-CNTs/S cathode to deliver an initial discharge capacity of 1216 mAh g<sup>−1</sup> at 0.2C with 83 % capacity retention after 200 cycles. Even at a high rate of 4C, it maintains a capacity of 734 mAh g<sup>−1</sup>, demonstrating excellent rate capability and cycling stability. This study provides an effective approach to mitigate the LiPSs shuttle effect and contributes to the rational development of sulfur host architectures.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"102 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288703","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
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