Journal of Industrial and Engineering Chemistry最新文献_第7页

Exploring cost-effective porous organic polymers for carbon capture and utilization 探索具有成本效益的多孔有机聚合物用于碳捕获和利用

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-10 DOI: 10.1016/j.jiec.2025.07.026

Hyunwoo Byun , Nazrul Hsan , Keechul Youm , Yonggyun Cho , Yijin Choi , Ingi Hong , Santosh Kumar , Md Morshedur Rahman , Joonseok Koh

Global warming, primarily driven by carbon dioxide (CO₂) emissions, necessitates the development of efficient CO₂ capture and utilization technologies. Porous organic polymers (POPs) have attracted significant attention due to their high surface areas, superior CO₂ adsorption capacities, and catalytic conversion properties. Nevertheless, the high cost of many POPs limits their industrial scalability. In this study, we report the successful synthesis of three cost-effective POPs—CBPOP, CNPOP, and CAPOP—using cyanuric chloride as the linker and three distinct aromatic cores (benzene, naphthalene, and anthracene, respectively). The resulting POPs exhibit robust aromatic character, high basicity, and well-developed network structures with significant porosity, which together confer excellent thermal stability, high CO₂ adsorption capacities, and outstanding CO₂/N₂ selectivity. Notably, CBPOP demonstrates the highest CO₂ uptake and selectivity, with adsorption behavior that is well described by the Single-Site Langmuir Model. Selectivity tests at 298 K and 323 K further confirm a strong preference for CO₂ over N₂—an essential feature for practical post-combustion carbon capture applications. In addition, all POPs effectively catalyze the cycloaddition of CO₂ with epoxides, yielding the corresponding cyclic carbonates with high efficiency. These results highlight the promise of CBPOP, CNPOP, and CAPOP as cost-effective POPs for selective and efficient CO₂ capture and conversion.

全球变暖主要是由二氧化碳（CO2）排放驱动的，因此需要开发有效的二氧化碳捕获和利用技术。多孔有机聚合物（POPs）因其高表面积、优异的CO2吸附能力和催化转化性能而备受关注。然而，许多持久性有机污染物的高成本限制了它们的工业可扩展性。在这项研究中，我们成功地合成了三种具有成本效益的pop - cbpop， CNPOP和capop，使用三聚氰胺作为连接剂和三种不同的芳香族核心（分别是苯，萘和蒽）。得到的持久性有机污染物具有强大的芳香特性、高碱度、发达的网络结构和显著的孔隙度，这些共同赋予了优异的热稳定性、高CO2吸附能力和出色的CO2/N2选择性。值得注意的是，CBPOP表现出最高的CO2吸收率和选择性，其吸附行为被单位点Langmuir模型很好地描述。在298 K和323 K下的选择性测试进一步证实了对CO2的强烈偏好，而不是n2 -这是实际燃烧后碳捕获应用的基本特征。此外，所有持久性有机污染物都能有效催化CO2与环氧化物的环加成反应，生成相应的环碳酸盐，效率高。这些结果突出了CBPOP、CNPOP和CAPOP作为具有成本效益的持久性有机污染物的前景，可以选择性和高效地捕获和转化二氧化碳。

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引用次数: 0

Designing efficient methane dry reforming catalysts: insights into the influence of calcium, iron, and manganese on cobalt-based systems 设计高效的甲烷干重整催化剂：洞察钙、铁和锰对钴基体系的影响

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.025

Dang Le Tri Nguyen , Duy Ha Le Phuong , Thuy-Phuong T. Pham , Anh Ngoc T. Cao , Tung M. Nguyen

Methane dry reforming (MDR) offers an eco-friendly method for syngas production by utilizing methane and carbon dioxide—two major greenhouse gases. A key challenge to its practical application is catalyst deactivation due to carbon deposition. In this study, cobalt-based catalysts doped with calcium, iron, and manganese were synthesized via incipient wetness impregnation and characterized by BET, XRD, H₂-TPR, CO₂-TPD, SEM, and TEM. Catalytic performance was tested at 700 °C and atmospheric pressure. Promoter addition enhanced cobalt dispersion, reducibility, and surface basicity, thereby boosting methane and CO₂ conversion rates. Among the catalysts, 0.3Ca-8Co@Al₂O₃ showed the best performance, achieving CH₄ and CO₂ conversions of 83% and 97%, respectively, with negligible coke formation. Post-reaction analysis confirmed the absence of filamentous carbon in the Ca-promoted catalyst, preventing cobalt encapsulation and ensuring sustained activity. These results underscore the importance of surface basicity in suppressing carbon buildup and suggest calcium as a highly effective promoter for enhancing the stability and performance of cobalt-based MDR catalysts.

甲烷干重整（MDR）利用甲烷和二氧化碳这两种主要的温室气体，为合成气生产提供了一种环保的方法。其实际应用的一个关键挑战是催化剂因碳沉积而失活。本研究采用初湿浸渍法制备了掺杂钙、铁、锰的钴基催化剂，并用BET、XRD、H2-TPR、CO2-TPD、SEM和TEM对催化剂进行了表征。在700℃和常压下测试了催化性能。促进剂的加入增强了钴的分散性、还原性和表面碱度，从而提高了甲烷和二氧化碳的转化率。其中，0.3Ca-8Co@Al2O3表现最好，CH4和CO2的转化率分别达到83%和97%，焦炭的形成可以忽略不计。反应后分析证实，ca促进的催化剂中没有丝状碳，防止了钴包封并确保了持续的活性。这些结果强调了表面碱度在抑制碳积累方面的重要性，并表明钙是一种非常有效的促进剂，可以提高钴基MDR催化剂的稳定性和性能。

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引用次数: 0

Comparative study on simultaneous adsorption of oxytetracycline and copper (II) by TiO2 nanoparticles and graphene oxide: Implications for environmental behavior 二氧化钛纳米粒子和氧化石墨烯同时吸附土霉素和铜（II）的比较研究：对环境行为的影响

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.014

Leming Zhen , Qiyuan Qin , Zhaofu Meng , Na Sun , Ze Liu , Ruohan Cheng , Can Xu , Wenhui Liu , Jingbing Xue

With the development of the nanotechnology industry, the possible coexistence of engineering nanoparticles with organic and heavy metal pollutants in aquatic systems has become a hot issue. However, how different nanoparticles affect the environmental behavior of oxytetracycline (OTC) − copper (Cu²⁺) complex pollution remains unclear. In this study, we investigated the complex adsorption behavior of nano-TiO₂ and graphene oxide (GO) to OTC and Cu²⁺ in water, and the differences of adsorption mechanism are discussed with characteristics analyses. When OTC and Cu²⁺ coexist, Cu²⁺ formed complexes with OTC, consuming oxygen-containing functional groups of OTC and reducing its adsorption on both nanoparticles. OTC does not affect Cu²⁺ adsorption on nano-TiO₂, but promotes Cu²⁺ adsorption on GO. The OTC adsorption on nano-TiO₂ was primarily driven by hydrogen bonding and electrostatic attraction, leaving it with potential mobility. In contrast, the adsorption of OTC on GO was mainly through electrostatic attraction, π-π complexation and hydrogen bonding, and OTC reduced GO to rGO. These strong interactions stabilized OTC on GO surface, reducing its environmental mobility. The results of the research are of great environmental significance for exploring the impact of engineered nanoparticles discharged from industrial production in water on the combined pollution of OTC and Cu²⁺.

随着纳米技术产业的发展，工程纳米颗粒与有机、重金属污染物在水体中共存的可能性已成为一个热点问题。然而，不同的纳米颗粒如何影响土霉素(OTC) -铜（Cu2+）复合物污染的环境行为尚不清楚。在本研究中，我们研究了纳米tio2和氧化石墨烯（GO）对水中OTC和Cu2+的复合吸附行为，讨论了吸附机理的差异并进行了特征分析。当OTC和Cu2+共存时，Cu2+与OTC形成配合物，消耗OTC的含氧官能团，减少OTC在两种纳米颗粒上的吸附。OTC不影响Cu2+在纳米tio2上的吸附，但促进了GO对Cu2+的吸附。OTC在纳米tio2上的吸附主要由氢键和静电吸引驱动，使其具有潜在的迁移率。相比之下，OTC在GO上的吸附主要是通过静电吸引、π-π络合和氢键，OTC将GO还原为rGO。这些强相互作用稳定了氧化石墨烯表面的OTC，降低了其环境流动性。研究结果对于探索工业生产中排放的工程纳米颗粒对水中OTC和Cu2+复合污染的影响具有重要的环境意义。

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引用次数: 0

Pluronic P123 modified MXene as an efficient adsorbent for aqueous dye Removal: Optimization using CCD-RSM Pluronic P123改性MXene作为水中染料去除的高效吸附剂：CCD-RSM优化

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.022

Nabilla Damayanti , Didik Prasetyoko , Suprapto Suprapto , Rustam Tamim , Riki Subagyo , Lia Kusnawati , Nurul Asikin-Mijan , Rahimi Yusop , Holilah Holilah , Aishah Abdul Jalil

MXene, a novel 2D nanomaterial, exhibits hydrophilicity, conductivity, and electrochemical performance. However, spontaneous self-assembly and restacking of MXene nanosheets, driven by hydrogen bonding and van der Waals forces, can hinder their functional potential. To address this, MXene was processed with Pluronic P123 using a templating method to enhance its structure and methylene blue (MB) adsorption capacity. Structural characterization revealed significant changes in the modified Mxene. XRD analysis showed a shift in the (002) peak, suggesting increased interlayer spacing. TGA showed the decomposition of P123 above 240 °C. FESEM indicated a 2D thin-layered and compressed structure resembles a lamella. The modified Mxene demonstrated strong affinity for MB, with adsorption behavior accurately described by the Freundlich isotherm and pseudo-second-order kinetic model. A comprehensive investigation was conducted to evaluate the effects of various parameters, such as contact time, initial MB concentration, pH, and adsorbent dosage, on adsorption efficiency. Response Surface Methodology (RSM) combined with Central Composite Design (CCD) optimization exposed that maximum MB removal of 99.8 % was achieved at pH 11, with an initial MB concentration of 10 mg/L, an adsorbent dosage of 15 mg, and a contact time of 36 min.

MXene是一种新型的二维纳米材料，具有亲水性、导电性和电化学性能。然而，在氢键和范德华力的驱动下，MXene纳米片的自发自组装和重新堆叠会阻碍其功能潜力。为了解决这一问题，采用Pluronic P123模板法处理MXene，以增强其结构和亚甲基蓝（MB）的吸附能力。结构表征显示修饰后的Mxene发生了显著变化。XRD分析表明（002）峰发生位移，表明层间间距增大。热重分析显示P123在240℃以上分解。FESEM显示二维薄层压缩结构类似于片层。改性后的Mxene对MB具有较强的亲和力，其吸附行为被Freundlich等温线和拟二级动力学模型准确描述。考察了接触时间、MB初始浓度、pH、吸附剂用量等参数对吸附效率的影响。响应面法（RSM）结合中心复合设计（CCD）优化结果表明，在pH为11、初始吸附浓度为10 mg/L、吸附剂用量为15 mg、接触时间为36 min的条件下，MB的去除率最高可达99.8%。

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引用次数: 0

Optimization of pinhole plasma jet for reactive nitrogen species generation in Plasma-Activated water and its application in microgreen cultivation 等离子体活化水中针孔等离子体射流生成活性氮的优化及其在微绿栽培中的应用

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.018

Phanumas Sojithamporn , Komgrit Leksakul , Chadapawn Saikum , Suchanuch Jaipinta , Choncharoen Sawangrat

PAW is considered a novel replacement of nitrogen fertilizers for sustainable agriculture. The process optimization for a pinhole plasma jet system (i.e., air flow rate and discharge time) to produce PAW with high reactive nitrogen species content and its application in microgreen production was investigated using response surface methodology. According to optimal conditions (i.e., an air flow rate of 5.0 L/min and a discharge time of 240 min), the highest NO₃^– (668.16 mg/L) and NO₂^– (60.59 mg/L) were obtained. Broccoli and radish microgreens treated with optimized PAW show higher growth attributes, such as germination percentage and fresh weight, compared to the control treatment. Additionally, the total protein content of both microgreens was significantly increased under optimal PAW, whereas no significant effects were exhibited in total phenolic compounds and antioxidant capacity. The stability of properties of the optimized PAW over 30 days of storage was determined, which is critical for preserving its effectiveness. This study confirms the ability of pinhole plasma jet technology to produce PAW with improved RNS components, as well as the efficacy of PAW in microgreen growing, taking a step towards its broader use in sustainable agriculture.

PAW被认为是可持续农业中氮肥的新替代品。采用响应面法研究了针孔等离子体喷射系统生产高活性氮组分PAW的工艺优化（即气流流速和放电时间）及其在微绿生产中的应用。在空气流量为5.0 L/min、排气时间为240 min的最佳条件下，NO3 - (668.16 mg/L)和NO2 - (60.59 mg/L)最高。与对照处理相比，经优化的PAW处理的花椰菜和萝卜微蔬菜的发芽率和鲜重等生长性状均有所提高。此外，在最佳PAW处理下，两种微蔬菜的总蛋白含量均显著提高，而总酚类化合物和抗氧化能力无显著影响。确定了优化后的PAW在30天内性能的稳定性，这是保持其有效性的关键。本研究证实了利用针孔等离子射流技术生产具有改良RNS组分的PAW的能力，以及PAW在微绿生长中的功效，为其在可持续农业中的广泛应用迈出了一步。

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引用次数: 0

Iron-rich sludge-enhanced Chinese medicine residue biochar as cost-effective heterogeneous Fenton catalyst for removal of tetracycline 富铁污泥强化中药材渣生物炭作为经济高效的多相Fenton催化剂脱除四环素

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.017

Yanyan Dou , Yanqiang Du , Yukun Li , Yixuan Chang , Yufeng Xu , Yilong Fan , Xishu Liang , Xuejun Duan , Shuying Dong

To rationally utilize Chinese medicine residue (CMR), biochar was produced through a novel one-step pyrolysis method by CMR doped with iron-rich sludge (IRS) and employed for the removal of tetracycline (TC) in Fenton-like process. The co-pyrolysis biochar (BMS-2) with the weight ratio of IRS to CMR (2:1) achieved the maximum removal efficiency of TC (85.73 %) under the optimum conditions (30 mg/L TC, 10 mM H₂O₂, pH 7.0, and 0.5 g/L BMS-2), which was 2.22 times higher than that of CMR biochar. It’s probably because that the addition of IRS enhanced the iron content, surface functional groups (C=O), and graphite structures augmented the active sites of BMS-2. Significantly, the catalytic system maintained effective performance across a widened pH range of 3–9. Furthermore, the identification of reactive oxygen species and electron paramagnetic resonance analysis demonstrated that singlet oxygen (¹O₂) played a predominant role in TC degradation, whereas hydroxyl radicals (·OH) and superoxide radicals (O₂^–·) had a secondary impact. This work advanced dual waste valorization by transforming industrial and medical waste into functional catalysts, established pH-neutral Fenton-like systems overcoming acidic limitations, and elucidated ¹O₂-mediated mechanisms for the removal of antibiotic wastewater.

为合理利用中药渣（CMR），采用一种新型的一步热解方法，将CMR掺杂富铁污泥（IRS）制备生物炭，并将其用于fenton法脱除四环素（TC）。在最佳条件（30 mg/L TC、10 mM H2O2、pH 7.0、0.5 g/L BMS-2）下，IRS与CMR质量比为2:1的共热解生物炭（BMS-2）对TC的去除率最高，达到85.73%，是CMR生物炭的2.22倍。这可能是因为IRS的加入提高了BMS-2的铁含量，表面官能团（C=O）和石墨结构增加了BMS-2的活性位点。值得注意的是，催化系统在3-9的宽pH范围内保持有效的性能。此外，活性氧鉴定和电子顺磁共振分析表明，单线态氧（1O2）在TC降解中起主导作用，羟基自由基（·OH）和超氧自由基（O2 -·）起次要作用。本研究通过将工业和医疗废物转化为功能催化剂，推进了废物的双重增值，建立了ph中性的fenton样体系，克服了酸性限制，并阐明了o2介导的抗生素废水去除机制。

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引用次数: 0

Development of high-performance activated carbons from algerian Luffa cylindrica for efficient phenol removal: A comprehensive structural, surface, and thermal characterization 阿尔及利亚丝瓜高效除酚活性炭的研制：综合结构、表面和热表征

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.016

Bouthaina Belaid , Razika Khalladi , Hakima Cherifi , Radhia Yous , Abdelhak Khachay

The performance of new activated carbons, LAC1 and LAC2, synthesized from Luffa cylindrica (LC) fibers pretreated with NaOH and sodium hypochlorite, and activated using H₃PO₄/ZnCl₂ and HNO₃, respectively, were evaluated for phenol removal from water. The impact of this new treatment on the structure of LC was comprehensively analyzed using pH_PZC, SEM/EDX, FTIR, XRD, TGA, DSC, and BET analyses. FTIR analysis confirmed the grafting of phosphorus groups onto LAC1 structure and the formation of crosslinked cellulose-phosphoric acid networks. The surface area of LAC1 (618.09 m²/g) was enhanced by 222-fold. The adsorption on LAC1 is spontaneous, exothermic and follows the PSO kinetic model. The adsorption mechanism was depicted and fits Langmuir isotherm LAC1 achieved the highest phenol removal efficiency (82 %), followed by LAC2 (74 %) and LC (37 %). LAC1 exhibited a moderate activation yield (45.81 %) and an acceptable activation ratio of 377 g H₃PO₄ per 100 g of LC. This study reveals that H₃PO₄/ZnCl₂ notably enhanced the surface properties and adsorption performances of Luffa fibers pretreated with NaOH and sodium hypochlorite.

以丝瓜纤维为原料，经NaOH和次氯酸钠预处理，分别用H3PO4/ZnCl2和HNO3活化，合成了新型活性炭LAC1和LAC2，并对其去除水中苯酚的性能进行了评价。采用pHPZC、SEM/EDX、FTIR、XRD、TGA、DSC和BET等分析方法，全面分析了新处理对LC结构的影响。FTIR分析证实了磷基团接枝到LAC1结构上，并形成交联的纤维素-磷酸网络。LAC1的比表面积（618.09 m2/g）提高了222倍。在LAC1上的吸附是自发的、放热的，符合PSO动力学模型。LAC1的苯酚去除率最高（82%），其次是LAC2（74%）和LC（37%）。LAC1的活化率适中（45.81%），每100 g LC的活化率为377 g H3PO4。研究表明，H3PO4/ZnCl2显著提高了NaOH和次氯酸钠预处理的丝瓜纤维的表面性能和吸附性能。

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引用次数: 0

State-of-the-art progress in photocatalytic hydrogen generation using graphene quantum dots 石墨烯量子点光催化制氢的最新进展

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.024

Tarannum , Vatika Soni , Monika Malhotra , Rubeena Chauhan , Pardeep Singh , Tansir Ahamad , Archana Singh , Aftab Aslam Parwaz Khan , Pankaj Raizada

Photocatalytic hydrogen (H₂) evolution via water splitting provides a clean energy solution but is hindered by limited solar absorption, fast charge reassembly, and low quantum efficacy in conventional semiconductors. Graphene quantum dots (GQDs), a subclass of carbon quantum dots, have emerged as promising catalysts to overcome these issues. Derived from graphene, GQDs exhibit unique physicochemical properties including quantum confinement, edge effects, and tunable band gap structure. Their excellent conductivity, large surface area, and stability make them ideal for enhancing photocatalytic activity. In this review, various synthesis routes of GQDs are discussed, among them hydrothermal method stands out for its simplicity, cost-effectiveness, high yield, and precise control over GQDs morphology and crystallinity. Then we have highlighted the function of GQDs as photosensitizers, cocatalysts, and heterojunction photocatalysts with their narrow and wide band gap, enhancing light absorption, charge separation, and interfacial charge transfer. Additionally, their up-conversion photoluminescence, high photostability, and surface functionalization potential further improve the photocatalytic performance. Moreover, their oxygen-containing functional groups and compatibility with heteroatom doping mainly allow precise control over band structure and charge dynamics. Despite challenges in large-scale synthesis, scalability, and property control, GQDs offer a non-toxic, environmentally friendly, and highly efficient approach for next-generation photocatalytic hydrogen generation.

通过水分解光催化氢（H2）演化提供了一种清洁能源解决方案，但在传统半导体中受到有限的太阳能吸收、快速电荷重组和低量子效率的阻碍。石墨烯量子点（GQDs）是碳量子点的一个子类，有望成为克服这些问题的催化剂。由石墨烯衍生而来的GQDs具有独特的物理化学性质，包括量子约束、边缘效应和可调带隙结构。其优异的导电性、大的表面积和稳定性使其成为提高光催化活性的理想材料。本文综述了GQDs的各种合成路线，其中水热法以其简单、经济、产率高、对GQDs形态和结晶度的精确控制而著称。然后我们强调了GQDs作为光敏剂、助催化剂和异质结光催化剂的功能，它们具有窄带隙和宽带隙，增强光吸收、电荷分离和界面电荷转移。此外，它们的上转换光致发光、高光稳定性和表面功能化潜力进一步提高了光催化性能。此外，它们的含氧官能团和与杂原子掺杂的相容性主要允许对能带结构和电荷动力学进行精确控制。尽管在大规模合成、可扩展性和性能控制方面存在挑战，但GQDs为下一代光催化制氢提供了一种无毒、环保、高效的方法。

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引用次数: 0

Evaluation of mixed additives in an electron beam-absorption system for simultaneous NOx and SO2 control 电子束吸收系统中混合添加剂对NOx和SO2同时控制的评价

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.008

Seo Hee Seo , Yong-Hwan Oh , Sang-Hee Jo , Tae-Hun Kim , Youn-Suk Son

This study aimed to simultaneously control NOx and SO₂ using an electron beam hybrid system that combines electron beam irradiation and absorption. Removal efficiencies of NOx and SO₂ were evaluated based on spray flow rates (320, 640, and 1190 ml/min), types of additives (NaOH, NaOH/NaClO₂, NaOH/H₂O₂, NaOH/NaCl), and absorbed doses (0–20 kGy). Preliminary tests were also conducted to evaluate the stability of the process. As a result, SO₂ was demonstrated a high removal efficiency of up to 79.2 % with absorption-only, whereas NOx control was minimal using either electron beam or absorption-only methods. When the EB-hybrid system was applied, the NOx removal efficiency increased to 78.2 %. The removal efficiency of SO₂ was not significantly affected by the absorbed dose but increased with the flow rate of additives. Specifically, using NaOH/NaClO₂, high removal efficiencies for both NOx and SO₂ were achieved with low absorbed doses and minimal spray flow rates. From an energy efficiency standpoint, reducing the absorbed dose increased the G-value, facilitating economical system operation. In long-term stability tests, SO₂ maintained over 90 % removal efficiency with no significant reduction during the 2-hour circulation of additives, and NOx maintained over 80 % efficiency. Although pH significantly decreased due to the circulation of additives, NaClO₂ was effective at controlling NOx and SO₂ even under acidic conditions.

本研究旨在利用电子束辐照和吸收相结合的电子束混合系统同时控制NOx和SO2。根据喷雾流速（320、640和1190 ml/min）、添加剂类型（NaOH、NaOH/NaClO2、NaOH/H2O2、NaOH/NaCl）和吸收剂量（0-20 kGy）对NOx和SO2的去除率进行了评价。还进行了初步试验，以评估该工艺的稳定性。结果表明，纯吸收法对SO2的去除率高达79.2%，而电子束或纯吸收法对NOx的去除率最低。当采用eb -混合系统时，NOx去除率提高到78.2%。SO2的去除率不受吸收剂量的影响，但随添加剂流速的增加而增加。具体来说，使用NaOH/NaClO2，以低吸收剂量和最小喷雾流量实现了对NOx和SO2的高去除效率。从能效角度看，减少吸收剂量增加了g值，有利于系统经济运行。在长期稳定性测试中，在添加剂循环2小时内，SO2的去除率保持在90%以上，没有明显降低，NOx的去除率保持在80%以上。虽然由于添加剂的循环，pH值显著降低，但即使在酸性条件下，NaClO2也能有效控制NOx和SO2。

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引用次数: 0

Contrasting direct contact and electrochemical pre-lithiation: Impact on interfacial stability and full cell longevity of graphite anodes 对比直接接触和电化学预锂化：对石墨阳极界面稳定性和全电池寿命的影响

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.020

Woowon Chung , Young Geol Yu , JinHa Shim , Jin Ho Bang

Pre-lithiation of graphite anodes is a promising strategy to compensate for lithium loss during the formation stage of lithium-ion batteries. Here, we compare electrochemical (EC) and direct contact (DC) pre-lithiation methods in full cell configurations using graphite/LiNi_0.8Co_0.15Mn_0.05O₂ electrodes. The DC method enables rapid lithium loading and forms a Li₂CO₃-rich surface layer, which enhances interfacial stability and long-term performance. Despite slightly higher initial impedance, DC-treated graphite shows suppressed dendrite formation, reduced electrolyte decomposition, and preserved crystallinity after extended cycling, unlike EC-treated graphite, which suffers from SEI degradation and increased LiF and Li_xPO_yF_z formation. These results highlight the effectiveness of DC pre-lithiation not only in improving electrode durability but also in providing a practical framework for reliable graphite anode preparation and full cell evaluation.

石墨阳极预锂化是弥补锂离子电池形成过程中锂离子损失的一种很有前途的方法。在这里，我们比较了石墨/LiNi0.8Co0.15Mn0.05O2电极在全电池配置下的电化学（EC）和直接接触（DC）预锂化方法。直流电法能够快速加载锂，并形成富含li2co3的表面层，增强了界面稳定性和长期性能。尽管初始阻抗略高，但dc处理的石墨在长时间循环后表现出抑制枝晶形成、减少电解质分解和保持结晶度的特性，而ec处理的石墨则会受到SEI降解和LiF和LixPOyFz形成的影响。这些结果突出了直流预锂化的有效性，不仅在提高电极耐久性方面，而且在为可靠的石墨阳极制备和全电池评估提供实用框架方面。

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引用次数: 0