Frontiers of Chemical Science and Engineering最新文献_第7页

Chitosan complex based hybrid material as catalyst for hydrogen evolution reaction 壳聚糖配合物基杂化材料作为析氢反应催化剂

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-25 DOI: 10.1007/s11705-025-2550-5

A. V. Khramenkova, D. N. Izvarina, V. V. Moshchenko, V. A. Smoliy, L. V. Klimova, O. E. Polozhentsev, A. N. Kuznetsov, K. M. Popov

{"title":"Chitosan complex based hybrid material as catalyst for hydrogen evolution reaction","authors":"A. V. Khramenkova, D. N. Izvarina, V. V. Moshchenko, V. A. Smoliy, L. V. Klimova, O. E. Polozhentsev, A. N. Kuznetsov, K. M. Popov","doi":"10.1007/s11705-025-2550-5","DOIUrl":"10.1007/s11705-025-2550-5","url":null,"abstract":"<div><p>The hybrid material based on polyelectrolyte complexes of chitosan with oxycompounds of cobalt and nickel was electrodeposited on a stainless steel plate using the method of non-stationary electrolysis. The hybrid material layer was investigated by scanning electron microscopy, atomic force microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer-Emmett-Teller method, Fourier transform infrared spectroscopy, and Raman spectroscopy. The electrocatalytic properties of the hybrid material were studied in the hydrogen evolution reaction in alkaline electrolyte (1 mol·L<sup>−1</sup> NaOH). It was determined that during the initial four-hour period of the hydrogen evolution process, the overpotential underwent a substantial decline, remaining constant for a minimum of 17 h thereafter, from 289 up to 210 mV at −10 mA·cm<sup>−2</sup>. After a long-term hydrogen evolution, the activity of the hybrid material electrode exceeded hydrogen evolution reaction activity by 20% Pt/C commercial catalyst at a high current density of −100 mA·cm<sup>−2</sup>.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 6","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

In situ thermally rearranged poly(benzoxazole-co-imide) membranes on α-alumina substrates for He/CH4 and He/N2 separation α-氧化铝衬底上原位热重排聚苯并恶唑-共亚胺膜用于He/CH4和He/N2分离

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-25 DOI: 10.1007/s11705-025-2552-3

Lu Wang, Zhiqiang Li, Yangdong He, Chenzhi Huang, Shijin Chen, Xianyun Zhou, Xiaosong Fan, Wenjing Xie, Xuerui Wang

{"title":"In situ thermally rearranged poly(benzoxazole-co-imide) membranes on α-alumina substrates for He/CH4 and He/N2 separation","authors":"Lu Wang, Zhiqiang Li, Yangdong He, Chenzhi Huang, Shijin Chen, Xianyun Zhou, Xiaosong Fan, Wenjing Xie, Xuerui Wang","doi":"10.1007/s11705-025-2552-3","DOIUrl":"10.1007/s11705-025-2552-3","url":null,"abstract":"<div><p>Membrane gas separation is an energy-efficient approach to extract helium from natural gas. However, the limited separation performance shown as Robeson’s upper bound has hindered the techno-economic feasibility. This study introduces an advanced copolyimide membrane engineered for He extraction from natural gas. The membranes were facilely achieved by dip-coating the <i>α</i>-alumina substrates in the copolyimide solution followed by <i>in situ</i> thermal rearrangement. In addition to the rigid 5-amino-2-(4-aminobenzene)benzimidazole segments, the active ortho-hydroxyl groups were converted to benzoxazole rings, contributing to extra micropores. The membrane showed an improved mixture selectivity of 120 and He permeance of 23.5 GPU, far surpassing the performance of benchmark membranes for helium separation over CH<sub>4</sub>. The membrane also demonstrated long-term stability as evidenced by the continuous operation over 250 h. Additionally, the membrane exhibited resistance to impurities such as CO<sub>2</sub> and C<sub>2</sub>H<sub>6</sub>, enduring the asymmetric membranes promising for practical helium extraction from natural gas.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Optimization design method for biofuel resilient supply chain considering node disruption impacts in a two-stage stochastic programming framework 两阶段随机规划框架下考虑节点中断影响的生物燃料弹性供应链优化设计方法

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-20 DOI: 10.1007/s11705-025-2548-z

Ronghui Wei, Wenhui Zhang, Yiqing Luo, Yang Yu, Xigang Yuan

{"title":"Optimization design method for biofuel resilient supply chain considering node disruption impacts in a two-stage stochastic programming framework","authors":"Ronghui Wei, Wenhui Zhang, Yiqing Luo, Yang Yu, Xigang Yuan","doi":"10.1007/s11705-025-2548-z","DOIUrl":"10.1007/s11705-025-2548-z","url":null,"abstract":"<div><p>As economic globalization accelerates, biofuel supply chain systems are becoming increasingly complex and large-scale, with businesses facing rising uncertainties and an increased risk of disruptions. Designing resilient biofuel supply chains that can withstand these risks while maintaining security and competitiveness has become a major concern and an urgent issue for enterprises. However, due to the lack of effective methods for quantifying and evaluating supply chain disruption risks, existing supply chain design approaches fail to adequately address the problem of mitigating such risks. To address this issue, this paper proposes an improved Node Disruption Impact Index with adjustable parameters, based on cost changes in the supply chain caused by disruptions at different nodes. This index enables the identification of nodes with varying risk levels and provides a means for evaluating disruption impact. The adjustable parameters can be tailored to meet the needs of supply chain enterprises, facilitating a trade-off between economic benefits and supply chain resilience. Furthermore, the paper applies the index to the fluctuation range of node uncertainties and develops a two-stage stochastic programming supply chain optimization model. This model incorporates a mechanism for addressing potential high disruption risks. By applying the model to a biofuel supply chain case in Guangdong Province, the results demonstrate that, when high-risk nodes are interrupted, the proposed model outperforms traditional models in terms of cost and market delivery rate. This confirms the effectiveness of the method in the optimization design of resilient supply chain.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 6","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Producing “green” methanol from syngas, derived from anaerobic digestion biogas 利用厌氧消化沼气产生的合成气生产 "绿色 "甲醇

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-20 DOI: 10.1007/s11705-025-2549-y

Huili Zhang, Yibing Kou, Miao Yang, Margot Vander Elst, Jan Baeyens, Yimin Deng

{"title":"Producing “green” methanol from syngas, derived from anaerobic digestion biogas","authors":"Huili Zhang, Yibing Kou, Miao Yang, Margot Vander Elst, Jan Baeyens, Yimin Deng","doi":"10.1007/s11705-025-2549-y","DOIUrl":"10.1007/s11705-025-2549-y","url":null,"abstract":"<div><p>An anaerobic digester of sewage sludge or agro-industrial waste produces biogas and ammonia-rich digestate. Three H<sub>2</sub>-producing processes exist: dry reforming of methane (from biogas), catalytic decomposition of methane (from biogas after CO<sub>2</sub> capture), and catalytic decomposition of ammonia (from digestate). Dry reforming of methane offers the best syngas yield at 700 °C and for a 50–50 vol % CH<sub>4</sub>/CO<sub>2</sub> biogas. Catalytic decomposition of methane achieved a H<sub>2</sub> yield of 95%. Finally, the digestate was stripped and NH<sub>3</sub> was further completely decomposed into H<sub>2</sub> and N<sub>2</sub>, for a complete NH<sub>3</sub> conversion at 650 °C. A methanol valorization case study of a wastewater treatment plant of 300000 person equivalents with an anaerobic digester is examined. The methanol production from syngas (H<sub>2</sub>/CO) and H<sub>2</sub> product streams is simulated using Aspen Plus®. This anaerobic digester process will daily generate 4485 m<sup>3</sup> CH<sub>4</sub>, 2415 m<sup>3</sup> CO, and 320 kg NH<sub>3</sub>. The methanol production will be 183 kg·h<sup>−1</sup> (1600 t·y<sup>−1</sup>). The additional H<sub>2</sub> from ammonia’s catalytic decomposition (631 m<sup>3</sup>·d<sup>−1</sup>) can be valorized with excess biogas in the anaerobic digester-associated combined heat and power unit. Due to a significantly higher ammonia concentration in manure, catalytic decomposition of ammonia will produce more H<sub>2</sub> if manure would be co-digested.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 10","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Innovative deep learning method for predicting the state of health of lithium-ion batteries based on electrochemical impedance spectroscopy and attention mechanisms 基于电化学阻抗谱和注意机制的锂离子电池健康状态预测的创新深度学习方法

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-20 DOI: 10.1007/s11705-025-2553-2

Cheng Lou, Jianhao Zhang, Xianmin Mu, Fanpeng Zeng, Kai Wang

{"title":"Innovative deep learning method for predicting the state of health of lithium-ion batteries based on electrochemical impedance spectroscopy and attention mechanisms","authors":"Cheng Lou, Jianhao Zhang, Xianmin Mu, Fanpeng Zeng, Kai Wang","doi":"10.1007/s11705-025-2553-2","DOIUrl":"10.1007/s11705-025-2553-2","url":null,"abstract":"<div><p>Electrochemical impedance spectroscopy plays a crucial role in monitoring the state of health of lithium-ion batteries. However, effective feature extraction often relies on limited information and prior knowledge. To address this issue, this paper presents an innovative approach that utilizes the gramian angular field method to transform raw electrochemical impedance spectroscopy data into image data that is easily recognizable by convolutional neural networks. Subsequently, the convolutional block attention module is integrated with bidirectional gated recurrent unit for state of health prediction. First, convolutional block attention module is applied to the electrochemical impedance spectroscopy image data to enhance key features while suppressing redundant information, thereby effectively extracting representative battery state features. Subsequently, the extracted features are fed into a bidirectional gated recurrent unit network for time series modeling to capture the dynamic changes in battery state of health. Experimental results show a significant improvement in the accuracy of state of health predictions, highlighting the effectiveness of convolutional block attention module in feature extraction and the advantages of bidirectional gated recurrent unit in time series forecasting. This research provides an attention mechanism-based feature extraction solution for lithium-ion battery health management, demonstrating the extensive application potential of deep learning in battery state monitoring.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 6","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A review on the low temperature water-gas-shift reaction: reaction mechanism, catalyst design, and novel process development 低温水气变换反应综述：反应机理、催化剂设计和新型工艺开发

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-15 DOI: 10.1007/s11705-025-2547-0

Jun Li, Xiaonan Wang, Sen Yao, Xiao Zhang

{"title":"A review on the low temperature water-gas-shift reaction: reaction mechanism, catalyst design, and novel process development","authors":"Jun Li, Xiaonan Wang, Sen Yao, Xiao Zhang","doi":"10.1007/s11705-025-2547-0","DOIUrl":"10.1007/s11705-025-2547-0","url":null,"abstract":"<div><p>The water-gas shift (WGS) reaction plays a pivotal role in various industrial processes, particularly in hydrogen production and carbon monoxide removal. As global energy demands rise and environmental concerns intensify, the development of efficient and sustainable catalysts for the low-temperature WGS (LT-WGS) reaction has gained significant attention. This review focuses on recent advancements in water-gas-shift catalyst design for low-temperature conditions and emerging renewable energy-driven catalytic processes, such as photocatalysis, electrocatalysis, and plasma catalysis for the WGS reaction, which are less commonly explored in existing reviews. We systematically analyze mechanisms studies of LT-WGS, rational catalyst design strategies, and recent frontier advances in the development of highly efficient catalysts. Furthermore, this review provides actionable insights for refining catalyst architectures, enhancing operational efficiency, elucidating reaction pathways, and pioneering hybrid technologies, all contributing to further advancements in this field.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 6","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Influence of a novel biobased coating decorated with UiO-66/BN in persistent flame-retardant hybrids on the fire safety and thermal degradation of epoxy resin 新型生物基涂层UiO-66/BN对环氧树脂防火性能和热降解性能的影响

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-13 DOI: 10.1007/s11705-025-2545-2

Zhicong Song, Juntong Zhou, Liping Jin, Yu Guan, Wei Wang, Wenwen Guo

{"title":"Influence of a novel biobased coating decorated with UiO-66/BN in persistent flame-retardant hybrids on the fire safety and thermal degradation of epoxy resin","authors":"Zhicong Song, Juntong Zhou, Liping Jin, Yu Guan, Wei Wang, Wenwen Guo","doi":"10.1007/s11705-025-2545-2","DOIUrl":"10.1007/s11705-025-2545-2","url":null,"abstract":"<div><p>To increase the fire safety of epoxy resin, this study employed a layer-by-layer self-assembly method to prepare a biologically flame-retardant coating-modified zirconium-based metal-organic framework (chitosan/phytic acid (CS/PA) @UiO-66). This study also attempted to incorporate boron nitride (BN) to enhance the flame-retardant properties of epoxy resin composites. The results from Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy confirmed the successful synthesis of UiO-66 and illustrated the assembly of CS and PA onto UiO-66 through a self-assembly strategy. Thermogravimetric analysis in conjunction with cone calorimetry and Raman spectroscopy analyses indicated that incorporating biologically-based flame-retardant coating-modified CS/PA@UiO-66 and BN nanosheets could effectively increase the flame-retardant performance of epoxy composites. Compared with pure epoxy resin, the incorporation of CS/PA@UiO-66-3 and CS/PA@UiO-66-3/BN led to a reduction in the peak heat release rate and total heat release values of 61.13% and 22.36% for EP/CS/PA@UiO-66-3 and EP/CS/PA@UiO-66-3/BN, respectively. Notably, EP/CS/PA@UiO-66-3/BN presented a continuous and dense char layer surface with increased graphite arrangement and higher residual char content after thermal degradation and combustion, thereby providing effective suppression of heat, mass, and oxygen transfer, demonstrating promising flame-retardant efficacy. Consequently, this study successfully improved the fire safety of epoxy resin and presented a new approach for the use of biologically-based flame-retardants.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 5","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synthesis of bimetallic crednerite nanosheet as an efficient heterogeneous catalyst in Fenton-like degradation of bisphenol A 双金属绿铜矿纳米片在fenton类降解双酚A中高效非均相催化剂的合成

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-13 DOI: 10.1007/s11705-025-2546-1

Hanxiao Chen, Bin Deng, Heng Lin, Hui Zhang

{"title":"Synthesis of bimetallic crednerite nanosheet as an efficient heterogeneous catalyst in Fenton-like degradation of bisphenol A","authors":"Hanxiao Chen, Bin Deng, Heng Lin, Hui Zhang","doi":"10.1007/s11705-025-2546-1","DOIUrl":"10.1007/s11705-025-2546-1","url":null,"abstract":"<div><p>Integrating bimetallic oxides into peroxymonosulfate (PMS) based advanced oxidation processes is appealing to span the limited kinetics in view of the interaction between multiple active sites. Herein, the crednerite (CuMnO<sub>2</sub>) nanosheet, synthesized through a low-temperature hydrothermal method, has demonstrated significant potential for water remediation. The as-prepared CuMnO<sub>2</sub> sample was characterized by involving morphology, crystal texture, and physicochemical property. The catalytic activity of CuMnO<sub>2</sub> on PMS activation was evaluated, and the influence of PMS concentration, catalyst dosage, and pH value on the removal of bisphenol A (BPA) was investigated. Over an abroad pH range from 4.0 to 10.0, more than 90% BPA could be effectively removed after 60 min reaction with the lower dosages of 0.2 g·L<sup>−1</sup> catalyst and 0.4 mmol·L<sup>−1</sup> oxidant. In terms of reaction pathways, the metal (Cu/Mn)-hydroxyl moiety with cooperative effect and good redox cycle mediate the disaggregation of adsorbed PMS into surface-bound sulfate and hydroxyl radicals, which are mainly responsible for the swift elimination and mineralization of BPA in the CuMnO<sub>2</sub>/PMS system. This work provides a constructive paradigm for the development of a cost-effective heterogeneous Fenton-like reaction toward environmental purification.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 5","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Integrating Calphad and finite volume method for predicting non-equilibrium solidification of lithium metasilicate 集成calphhad和有限体积法预测偏硅酸锂非平衡凝固

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-04-13 DOI: 10.1007/s11705-025-2543-4

Haojie Li, Sanchita Chakrabarty, Vishnuvardhan Naidu Tanga, Marco Mancini, Michael Fischlschweiger

{"title":"Integrating Calphad and finite volume method for predicting non-equilibrium solidification of lithium metasilicate","authors":"Haojie Li, Sanchita Chakrabarty, Vishnuvardhan Naidu Tanga, Marco Mancini, Michael Fischlschweiger","doi":"10.1007/s11705-025-2543-4","DOIUrl":"10.1007/s11705-025-2543-4","url":null,"abstract":"<div><p>Efficient recycling of lithium metasilicate (Li<sub>2</sub>SiO<sub>3</sub>) from lithium-containing slag via a pyrometallurgical route demands a comprehensive understanding of its solidification process in the slag reactor. A simulation framework is developed to predict the heterogeneous phase distribution of Li<sub>2</sub>SiO<sub>3</sub>, the temperature and velocity fields considering density changes in the solidifying melt, on the apparatus scale. This framework integrates thermodynamic models via calculation of phase diagrams with the enthalpy-porosity technique and the volume of fluid method within a finite volume approach, ensuring thermodynamic consistency and adherence to mass balance. Thus, the formation of Li<sub>2</sub>SiO<sub>3</sub> from the liquid slag composed of Li<sub>2</sub>O-SiO<sub>2</sub> is described in space and temporal fields. Thereby, the interrelationship between the temperature field, enthalpy field, velocity field, and phase distribution of Li<sub>2</sub>SiO<sub>3</sub> is revealed. It is shown that the lower temperature on reactor boundaries prompts the earlier formation of Li<sub>2</sub>SiO<sub>3</sub> in the vicinity of the boundaries, which subsequently induces a downward flow due to the higher density of Li<sub>2</sub>SiO<sub>3</sub>. The predicted global mass fraction of Li<sub>2</sub>SiO<sub>3</sub> under non-equilibrium conditions is 11.5 wt % lower than that calculated using the global equilibrium assumption. This demonstrates the global non-equilibrium behavior on the process scale and its consequences on slag solidification.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 5","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11705-025-2543-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toward sustainable hydrogen and carbon economies through plasma-based recycling 通过基于等离子体的回收利用实现可持续的氢经济和碳经济

IF 4.3 3区工程技术

Frontiers of Chemical Science and Engineering Pub Date : 2025-03-27 DOI: 10.1007/s11705-025-2544-3

Guoxing Chen, Anke Weidenkaff

引用次数: 0