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Expert systems: Grounding cross-disciplinary LLMs in reality 专家系统:在现实中接地跨学科法学硕士
Pub Date : 2025-12-17 DOI: 10.1016/j.recm.2025.100164
Peng Zheng, Guangwen Xu
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引用次数: 0
Outside Back Cover 外封底
Pub Date : 2025-12-01 DOI: 10.1016/S2772-4433(25)00071-6
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引用次数: 0
From natural lignocellulosic resources to commercially reliable hard carbon materials: Insights and prospects 从天然木质纤维素资源到商业上可靠的硬碳材料:见解和前景
Pub Date : 2025-10-22 DOI: 10.1016/j.recm.2025.100146
Lei Zhong , Junjun Yao , Shuhua Hao , Xueqing Qiu , Wenli Zhang
Lignocellulosic biomass-derived hard carbon has gained prominence as a promising anode material for commercial sodium-ion batteries owing to its tunable microstructure, cost-effectiveness, and sustainability. However, the intrinsic heterogeneity and structural complexity of lignocellulosic biomass pose significant challenges to the large-scale deployment of its derived hard carbons. This perspective summarizes recent advances in laboratory-scale research, highlights the key obstacles hindering commercial application, and outlines guiding principles for structural design. Finally, we discuss future development pathways to enable the production of low-cost, high-performance hard carbon anodes, thereby accelerating the commercialization of sodium-ion batteries
木质纤维素生物质衍生的硬碳由于其可调的微观结构、成本效益和可持续性而成为商业钠离子电池的一种有前途的阳极材料。然而,木质纤维素生物质固有的异质性和结构复杂性对其衍生的硬碳的大规模部署构成了重大挑战。本观点总结了实验室规模研究的最新进展,强调了阻碍商业应用的主要障碍,并概述了结构设计的指导原则。最后,我们讨论了未来的发展途径,以实现低成本,高性能硬碳阳极的生产,从而加速钠离子电池的商业化
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引用次数: 0
Toward carbon neutrality: A comprehensive review of CO2 hydrogenation to olefins and aromatics 迈向碳中和:二氧化碳加氢制烯烃和芳烃的综合综述
Pub Date : 2025-10-22 DOI: 10.1016/j.recm.2025.100147
Jianxiang Han , Xiwen Cui , Jian Sun
The catalytic hydrogenation of carbon dioxide (CO2) into high‐value chemicals offers a sustainable approach to reduce greenhouse gas emissions and dependence on fossil resources. Among the products, olefins and aromatics are vital industrial building blocks, and their synthesis from CO2 provides notable environmental and energy benefits. Yet the conversion of CO2 into such unsaturated hydrocarbons remains intrinsically difficult, as it requires overcoming the high stability of the C–O bond, steering C–C coupling toward the desired products, and delicately balancing hydrogenation to suppress over-hydrogenation. This review summarizes recent advances in CO2 hydrogenation to olefins and aromatics, with particular attention to the main mechanistic pathways involving CO and methanol intermediates. We provide a detailed analysis of catalyst design strategies and mechanistic studies that have deepened understanding of CO2 activation, reaction intermediates, and product formation. Finally, the persisting challenges are discussed, and perspectives are offered on how future developments may enable efficient and scalable CO2 utilization.
二氧化碳(CO2)催化加氢生成高价值化学品为减少温室气体排放和减少对化石资源的依赖提供了一种可持续的方法。在这些产品中,烯烃和芳烃是重要的工业基石,它们的合成具有显著的环境和能源效益。然而,将二氧化碳转化为这种不饱和碳氢化合物在本质上仍然是困难的,因为它需要克服C-O键的高稳定性,将C-C偶联转向所需的产物,并微妙地平衡氢化以抑制过氢化。本文综述了二氧化碳加氢制烯烃和芳烃的最新进展,重点介绍了涉及一氧化碳和甲醇中间体的主要机理途径。我们提供了催化剂设计策略和机理研究的详细分析,加深了对CO2活化,反应中间体和产物形成的理解。最后,讨论了持续存在的挑战,并就未来的发展如何实现有效和可扩展的二氧化碳利用提供了观点。
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引用次数: 0
Ethanol extraction pretreatment to improve the performance of banana pseudostem-derived porous carbon as supercapacitor electrodes 乙醇提取预处理提高香蕉假茎衍生多孔碳作为超级电容器电极的性能
Pub Date : 2025-10-10 DOI: 10.1016/j.recm.2025.100145
Guozi Liu , Dachao Ma , Yaqi Zheng , Mengxue Ling , Wenfeng Ya , Liusen Wang , Hongchang Hu , Jinye Wei , Qisong Zhong , Zheng Liu , Dongbo Wang , Qingge Feng
Bananas are among the most produced and popular fruits globally, and their harvest generates significant amounts of banana pseudostem (BP). This study proposes a process that involves first extracting tannic acid from BP with ethanol and then converting the extraction residue RBP (recycled banana pseudostem) into biochar for electrode material for supercapacitors (SCs), thereby maximizing the resource utilization of BP. BP and RBP biochars were prepared by pyrolysis at temperatures ranging from 600 °C to 800 °C. Comparison of pretreated and un-pretreated samples showed that the micropore specific surface area of RBP700 (2066.35 m2·g−1) nearly doubled that of BP700 (1057.10 m2·g−1), and the micropore volume increased from 0.49 cm3·g−1 to 0.84 cm3·g−1. RBP700 electrode exhibited a specific capacitance of 298.2 F·g−1 at a current density of 0.5 A·g−1, with a capacitance retention rate of 78.4 % at 20 A·g−1, and retained 92.6 % of its initial capacitance after 10,000 cycles, demonstrating excellent electrochemical performance and high electrochemical stability.
香蕉是全球产量最高、最受欢迎的水果之一,它们的收获产生了大量的香蕉假茎(BP)。本研究提出了一种先用乙醇从BP中提取单宁酸,然后将提取残渣RBP(回收香蕉假茎)转化为生物炭作为超级电容器(SCs)电极材料的工艺,从而最大限度地提高BP的资源利用率。在600 ~ 800℃的温度范围内热解制备BP和RBP生物炭。结果表明,RBP700的微孔比表面积(2066.35 m2·g−1)比BP700 (1057.10 m2·g−1)增加了近一倍,微孔体积从0.49 cm3·g−1增加到0.84 cm3·g−1。RBP700电极在0.5 a·g−1电流密度下的比电容为298.2 F·g−1,在20 a·g−1电流密度下的电容保持率为78.4%,循环10000次后的电容保持率为初始电容的92.6%,表现出优异的电化学性能和较高的电化学稳定性。
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引用次数: 0
Corrigendum regarding updated Declaration of Competing Interest statements in previously published articles 关于先前发表的文章中更新的竞争利益声明的勘误表
Pub Date : 2025-09-01 DOI: 10.1016/j.recm.2025.100144
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引用次数: 0
Outside Back Cover 外封底
Pub Date : 2025-09-01 DOI: 10.1016/S2772-4433(25)00052-2
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引用次数: 0
Wood-derived Co@CoO/BNC bifunctional electrocatalyst for high-efficient zinc-air batteries 木材衍生Co@CoO/BNC双功能电催化剂,用于高效锌空气电池
Pub Date : 2025-08-15 DOI: 10.1016/j.recm.2025.100127
Jiawei Zhang , Zhiqiang Yang , Ming Li, Shixin Yu, Xingze Yang, Liyuan Gong, Shuo Dou
The utilization of wood-derived porous carbon as catalytic electrodes in metal-air batteries has garnered significant attention. Although extensive efforts have focused on developing and optimizing active sites, the insufficient electrical conductivity of wood-derived carbon-based electrodes remains a frequently overlooked challenge. In this study, we successfully constructed boron and nitrogen co-doped Co@CoO/BNC composite through multidimensional structural and compositional synergy, demonstrating exceptional catalytic activity. Specifically, ZIF-67 was confined in situ within wood cell structure to derive carbon materials with controllable growth of Co@CoO nanoparticles, preserving the hierarchical porous structure to ensure superior mass and electron transport. Furthermore, boron and nitrogen co-doping generated B-N-C, which modulated the electronic structure of metal centers and induced high-density topological defects in the carbon matrix, synergistically enhancing catalytic activity. The Co@CoO/BNC composite demonstrated outstanding bifunctional catalytic performance for both oxygen reduction reaction (ORR, half-wave potential E1/2 = 850 mV) and oxygen evolution reaction (OER, overpotential of 310 mV at 10 mA cm−2). Notably, the narrow potential gap of 715 mV between ORR and OER significantly surpassed that of commercial Pt/C + RuO2 catalysts. Moreover, the as-prepared Co@CoO/BNC architecture also exhibited remarkable stability. When employed as an air cathode in zinc-air batteries, it delivered a specific capacity of 958.5 mA h g−1 and maintained exceptional cycling stability for over 300 h. This work provides critical insights into the rational design of carbon-based bifunctional oxygen electrocatalysts and highlights the high-value utilization of forest biomass-derived materials in renewable electrochemical energy conversion systems.
利用木质多孔碳作为金属-空气电池的催化电极已经引起了人们的广泛关注。尽管大量的工作集中在开发和优化活性位点上,但木材碳基电极的导电性不足仍然是一个经常被忽视的挑战。在本研究中,我们通过多维结构和成分协同作用,成功构建了硼氮共掺杂Co@CoO/BNC复合材料,并表现出优异的催化活性。具体来说,ZIF-67被原位限制在木材细胞结构中,以获得具有Co@CoO纳米颗粒可控生长的碳材料,保留了分层多孔结构,以确保卓越的质量和电子传输。此外,硼氮共掺杂生成的B-N-C调节了金属中心的电子结构,在碳基体中引起高密度的拓扑缺陷,协同增强了催化活性。Co@CoO/BNC复合材料对氧还原反应(ORR,半波电位E1/2 = 850 mV)和析氧反应(OER,过电位310 mV, 10 mA cm−2)均表现出优异的双功能催化性能。值得注意的是,ORR和OER之间的窄电位差为715 mV,明显超过了商用Pt/C + RuO2催化剂。此外,制备的Co@CoO/BNC结构也表现出了显著的稳定性。当用作锌-空气电池的空气阴极时,它提供了958.5 mA h g - 1的比容量,并保持了超过300小时的卓越循环稳定性。这项工作为碳基双功能氧电催化剂的合理设计提供了重要见解,并强调了森林生物质衍生材料在可再生电化学能量转换系统中的高价值利用。
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引用次数: 0
Bioactive nanofluids for enhancing carbon dioxide capture 增强二氧化碳捕获的生物活性纳米流体
Pub Date : 2025-08-15 DOI: 10.1016/j.recm.2025.100132
Merna Farag, Sulaiman Al-Zuhair
The pressing need to reduce industrial CO₂ emissions has spurred the development of efficient and sustainable alternatives to conventional amine-based solvents. In this study, a series of novel nanobiocatalysts were engineered by immobilizing carbonic anhydrase (CA) onto four types of CO₂-affinitive nanoparticles: zeolitic imidazolate framework-8 (ZIF-8), Fe₂O₃, graphene, and graphene oxide (GO). The resulting nanobiocatalysts exhibited enhanced CO₂ adsorption capacities, with GO achieving the highest at 22.4 mg/g, followed by ZIF-8 at 8.6 mg/g at 25 °C. When used as nanofluids, all systems significantly outperformed pure water in CO₂ absorption, with GO reaching a maximum CO₂ flux of 225 mol/m²·min at 1 bar and 25 °C. The presence of immobilized CA contributed to substantial flux enhancements: 41.6 % for GO, 36.9 % for graphene, 32.0 % for ZIF-8, and 21.0 % for Fe₂O₃, demonstrating a clear synergistic effect between enzymatic catalysis and nanoparticle-assisted absorption. The GOCA nanobiocatalyst also exhibited excellent operational stability, retaining over 95 % of its initial performance after three reuse cycles. Post-reaction analysis revealed a decrease in GO’s surface area from 1562 m²/g to 338 m²/g, confirming stable enzyme immobilization. These results underscore the potential of GOCA nanobiocatalysts as a high-performance, reusable, and scalable solution for industrial CO₂ capture.
减少工业二氧化碳排放的迫切需要刺激了传统胺基溶剂的高效和可持续替代品的发展。在这项研究中,通过将碳酸酐酶(CA)固定在四种CO₂亲和纳米颗粒上,设计了一系列新型纳米生物催化剂:沸石咪唑盐框架-8 (ZIF-8)、Fe₂O₃、石墨烯和氧化石墨烯(GO)。所得纳米生物催化剂表现出增强的CO₂吸附能力,在25°C时,GO的吸附量最高,为22.4 mg/g,其次是ZIF-8,吸附量为8.6 mg/g。当用作纳米流体时,所有系统在CO₂吸收方面都明显优于纯水,在1 bar和25°C条件下,氧化石墨烯的最大CO₂通量达到225 mol/m²·min。固定化CA的存在有助于大幅提高通量:氧化石墨烯为41.6%,石墨烯为36.9%,ZIF-8为32.0%,Fe₂O₃为21.0%,表明酶催化和纳米颗粒辅助吸收之间存在明显的协同效应。GOCA纳米生物催化剂也表现出优异的操作稳定性,在重复使用三次后仍保持95%以上的初始性能。反应后分析显示,氧化石墨烯的表面积从1562 m²/g减少到338 m²/g,证实了酶的稳定固定。这些结果强调了GOCA纳米生物催化剂作为一种高性能、可重复使用、可扩展的工业二氧化碳捕获解决方案的潜力。
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引用次数: 0
A novel recyclable alkaline deep eutectic solvent for enhanced biomass fractionation and enzymatic hydrolysis 一种新型可回收碱性深共熔溶剂,用于增强生物质分馏和酶解
Pub Date : 2025-08-14 DOI: 10.1016/j.recm.2025.100131
Tingting Wang , Ziyue Chen , Aocheng Wei , Chao Xie , Si Hong , Chaofeng Zhang , Xiaojun Shen
Effective lignin removal while preserving carbohydrates is a critical challenge in the production of bioethanol. Herein, a novel alkaline deep eutectic solvent (DES) composed of ammonium chloride (NH₄Cl) and monoethanolamine (MEA), was designed for efficient lignin removal and carbohydrate retention in corn stalks pretreatment. Under optimal conditions (MEA/NH₄Cl with a molar ratio 6:1, 140 °C, 6 h), the DES achieved 95.7 % lignin removal, with glucose and xylose yields after enzymatic hydrolysis of the residue reaching 98 %. Remarkably, glucose and xylose yields were up to 96 % within only 24 h, cutting the reaction time by two-thirds compared to the conventional 72 h industrial process and significantly enhancing efficiency. The DES also maintained high efficiency after five reuse cycles, demonstrating excellent recyclability and economic potential. Structural analysis revealed increased crystallinity and porosity, providing mechanistic insights into enhanced enzymatic accessibility. This work establishes a sustainable and innovative strategy for lignocellulose pretreatment, paving the way for cellulosic bioethanol production.
在保留碳水化合物的同时有效地去除木质素是生物乙醇生产中的一个关键挑战。设计了一种由氯化铵(NH₄Cl)和单乙醇胺(MEA)组成的新型碱性深度共晶溶剂(DES),用于玉米秸秆预处理中木质素的高效脱除和碳水化合物的保留。在最佳条件下(MEA/NH₄Cl,摩尔比6:1,140℃,6 h), DES的木质素去除率达到95.7%,酶解后的葡萄糖和木糖收率达到98%。值得注意的是,葡萄糖和木糖的产率在24 h内达到96%,与传统的72 h工业过程相比,反应时间缩短了三分之二,效率显著提高。DES在5次循环使用后仍保持了较高的效率,显示出良好的可回收性和经济潜力。结构分析显示结晶度和孔隙度增加,为提高酶的可及性提供了机制见解。这项工作为木质纤维素预处理建立了可持续和创新的策略,为纤维素生物乙醇的生产铺平了道路。
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引用次数: 0
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