Industrial & Engineering Chemistry Research最新文献

{"title":"Incorporating Metal Oxides to Significantly Improve the Ablative Performance of Silicone Rubber-Based Composites at 10% Tensile Strain Rate under Coupled Thermal-Mechanical-Oxidative Conditions","authors":"Zhaohui Lu, Shengtai Zhou, Chuxiang Zhou, Hao Zhang, Huawei Zou, Xiancheng Ren","doi":"10.1021/acs.iecr.4c03552","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03552","url":null,"abstract":"Silicone rubber is able to provide excellent thermal protection and accommodates large deformation rates. However, the ablative properties of silicone rubber deteriorate significantly when it is subjected to ablation at large strain rates. To attempt to address the above problem, different types of metal oxides were adopted to enhance the ablative properties of vinyl methyl silicone rubber (VMQ), especially for enhancing the ablative performance at 10% tensile strain rate. The results revealed that the combined use of iron(II, III) oxide (Fe₃O₄) and zirconium dioxide (ZrO₂) was instrumental in improving the ablative properties of VMQ-based composites at 10% tensile strain rate and a heat flux of 1 MW/m². To further enhance the ablative performance, the ratio of Fe₃O₄ and ZrO₂ was optimized through an experimental design method. Results showed that when the ratio of Fe₃O₄ and ZrO₂ was 1.4:1, the maximum back-face temperature of a 3 mm thick silicone rubber composite remained below 200 °C, while the surface temperature was well above 2000 °C when it was stretched to a tensile strain rate of 10%. This work provides a reference for preparing high-performance flexible thermal ablative composites that exhibit promising application in aerospace and fire protection sectors, among others.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"48 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841595","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}

{"title":"Prediction of Critical Temperature and Critical Volume of Mixtures by a New Group Contribution Method","authors":"Bo Tang, Xiaoyu Yao, Xueqiang Dong, Yanxing Zhao, Maoqiong Gong","doi":"10.1021/acs.iecr.4c03939","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03939","url":null,"abstract":"The vapor–liquid critical properties of mixtures are essential for defining the vapor–liquid phase boundary and play a crucial role in predicting various thermophysical properties of mixtures, which are particularly significant in applications such as supercritical extraction and transcritical cycles. While experimental measurement is the most efficient and direct approach to obtaining critical properties, it is often time-consuming and labor-intensive, necessitating the use of theoretical prediction methods. Nonetheless, existing prediction models tend to be complex and frequently rely on the critical properties of pure substances, which limit their applicability. In this article, a new group contribution method for predicting the critical temperature and critical volume of mixtures is proposed. The new group contribution method is simple in calculation form, simple in group division, has good accuracy, and does not need the critical temperature and critical volume of pure substances when calculating the critical temperature and critical volume of mixtures. This new method includes 24 groups and can be applied to systems consisting of organic compounds made up of C, H, O, F, Cl, Br, and I elements or CO₂. The experimental critical temperatures of 272 compounds and 368 groups of binary mixtures (3223 data points), as well as the experimental critical volumes of 224 compounds and 68 groups of binary mixtures (400 data points), were used to determine the group contribution values and model parameters. The average absolute relative deviations (AARDs) for the correlation of compounds are 1.28% for critical temperature and 4.93% for critical volume. For binary mixtures, the AARDs are 1.62% for the critical temperature and 7.33% for the critical volume. Additionally, the predictive capability of the new method for critical temperature and critical volume has been evaluated. The AARDs for critical temperature are 2.48, 1.98, and 0.94% for 25 data points of pure substances, 615 data points of binary mixtures, and 565 data points of ternary mixtures, respectively. For critical volumes, the AARDs are 5.52% for 26 data points of pure substances and 7.49% for 61 data points of binary mixtures.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"72 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841202","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}

{"title":"3D Printed Limestone Monoliths for CO2 Capture in Calcium Looping","authors":"Cameron Ince, Vesna Middelkoop, Aakash Vijayaraghavan Ramesh, Nader Mahinpey","doi":"10.1021/acs.iecr.4c03232","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03232","url":null,"abstract":"In this experiment, limestone monoliths were 3D printed using a novel limestone mixture, then tested inside of a fixed bed reactor. This represents to the author’s knowledge the first use of 3D printed monoliths in calcium looping. Four monoliths with different infill geometries were tested and compared against a random packing and limestone powder. Comparison was made through the adsorptive capacity of CO₂, and the pressure drop across the column. Calcination was done at 850 °C, under pure N₂, whereas carbonation was conducted at 650 °C with 15% CO₂, balance N₂. The adsorptive performance of these monoliths was in line with the traditional limestone powder on a millimole CO₂/g_sorbent basis, but the pressure drop across the column was reduced by ∼58% on average.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"71 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841596","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}

{"title":"High-Temperature Ferrofluids Based on Molten Salts","authors":"Phillip W. Halstenberg, Ellie M. Kim, Dianna Nguyen, Dmitry Maltsev, Dustin A. Gilbert, Sheng Dai","doi":"10.1021/acs.iecr.4c03410","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03410","url":null,"abstract":"Molten metal chloride salts are promising candidates for advanced heat transfer fluids in generation IV nuclear reactors and beyond. However, research on the magnetic properties of suspended metallic nanoparticles at elevated temperatures is scarce, and there have been no attempts to develop a high-temperature, molten salt based ferrofluid. Such a ferrofluid would enable in situ manipulation of both the physical and thermal properties of the fluid via an external magnetic field. This study examines molten salt based ferrofluids comprised of metallic cobalt nanoparticles dispersed in molten metal chloride salts. High-temperature magnetometry and magneto-thermogalvometric measurements were conducted to evaluate the magnetic characteristics of the ferrofluid. Further analysis was conducted through a combination of microscopy, spectroscopy, solubility tests, and diffraction measurements. The metallic cobalt nanoparticles exhibited a notable degree of chemical stability and sustained magnetism from 25 to 800 °C when suspended in NaCl–MgCl₂ and KCl–ZnCl₂ mixtures.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"22 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833042","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}

{"title":"Preparation of Highly Selective RuNb/Co3O4-Supported Catalysts and Their Catalytic Combustion Performance for 1,2-Dichloroethane","authors":"Litao Liu, Min Ding, Wangcheng Zhan, Li Wang, Qiguang Dai, Yun Guo, Yanglong Guo, Aiyong Wang","doi":"10.1021/acs.iecr.4c03690","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03690","url":null,"abstract":"Ru-modified Co₃O₄ catalysts have attracted increasing attention in the catalytic combustion of chlorinated volatile organic compounds (CVOCs) due to the8ir excellent activity and better resistance to chlorine poisoning. However, the formation of various and toxic polychlorinated byproducts is still a critical problem to be solved in the process of catalytic combustion of CVOCs. Herein, a series of RuXNb/Co catalysts with different Nb to Co₃O₄ mass ratios were synthesized and investigated for their performance in the catalytic combustion of 1,2-dichloroethane (EDC). Consequently, the Ru/Co catalyst exhibited excellent EDC elimination activity with a temperature of conversion of 90% (<i>T</i>₉₀) at 255 °C. In addition, RuXNb/Co catalysts significantly decreased the generation of byproducts, especially the polychlorinated byproducts, and achieved high selectivity of products during the EDC oxidation. It was further discovered that the loading of Ru species could obviously activate surface lattice oxygen and enhance the reducibility of Co₃O₄ through the strong interaction between Ru species and Co₃O₄. The introduction of Nb species provided appropriate acid sites on the catalyst surface, which was favorable for the adsorption of EDC and activation of C–Cl bonds. The results indicated that a unique reflux method and niobium modification provided a strategy for designing CVOC oxidation catalysts with high activity and product selectivity.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"23 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832744","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}

{"title":"Experimental Studies on NOx Removal and Soot Regeneration Characteristics of a Selective Catalytic Reduction Filter","authors":"Bin Guan, Junyan Chen, Zhongqi Zhuang, Lei Zhu, Zeren Ma, Xuehan Hu, Chenyu Zhu, Sikai Zhao, Kaiyou Shu, Hongtao Dang, Tiankui Zhu, Zhen Huang","doi":"10.1021/acs.iecr.4c03443","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03443","url":null,"abstract":"Herein, the NO_<i>x</i> removal capability of SCRF based on the Cu/SSZ-13 catalyst and its influencing factors were comprehensively explored. The reaction characteristics of important reactions in SCRF including SCR, fast SCR, NH₃ oxidation, etc. under different soot contents were studied under quasi-steady-state experimental conditions, as well as the influence of reactant conditions on soot regeneration. The results indicated the following: Cu/SSZ-13 SCRF achieves NO_<i>x</i> conversion efficiency exceeding 90% at 250 °C, comparable to through-flow SCR. Fast SCR performance is over 20% better than that of standard SCR at 200 °C, while NO₂–SCR shows the lowest NO_<i>x</i> removal. A significant amount of N₂O is generated, with NH₄NO₃ formation impeding the SCR reaction. An NO₂/NO_<i>x</i> ratio of 0.4 enhances NO_<i>x</i> removal. To limit NH₄NO₃ formation at low temperatures, an NH₃/NO_<i>x</i> ratio of 0.8 or lower is advised below 200 °C; above this temperature, the ratio should exceed 1 due to strong ammonia oxidation. Soot loading hinders NO_<i>x</i> removal at 200–500 °C but enhances it above 500 °C. NH₃-TPD, NH₃-TPO, and N₂O generation experiments indicate that NH₃ adsorption sites exist on soot, covering the Cu-based catalyst surface. Quasi-steady state SCR tests show that while the SCR reaction does not actively regenerate soot, it strongly inhibits passive regeneration. Under NO₂ intake, the level of CO₂ from passive regeneration at 300 °C increased by 175 ppm, indicating competition with NO₂.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"5 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841597","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}

{"title":"Study on the Effect of Coprecipitation Conditions on the Growth and Agglomeration of Ni0.8Co0.1Mn0.1(OH)2 Particles","authors":"Qianying Han, Li Yang, Haoliang Wang, Jingcai Cheng, Chao Yang","doi":"10.1021/acs.iecr.4c03800","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03800","url":null,"abstract":"Morphology and size of ternary precursors directly influence the electrochemical performance of the final cathode materials. Insights into the growth and agglomeration mechanisms of primary particles are crucial for enhancing the precursor performance. This work aims to examine the effects of ammonia concentration, pH values, and stirring speed on the growth, agglomeration, and characteristics of Ni_0.8Co_0.1Mn_0.1(OH)₂ primary particles prepared by the coprecipitation method. The {010} crystal family exposed on the surface of secondary particles heavily influences the growth of primary particles. Primary particle size increases with higher ammonia concentration, lower pH, and stirring speed. Higher ammonia concentrations lead to larger secondary particles with a narrower size span and tighter agglomeration. An increased pH value leads to a decreased size, broadened size span, and looser agglomeration of secondary particles. The average particle size decreases, and the impact on primary particle agglomeration tightness is limited by increased stirring speed.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"12 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841196","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}

{"title":"Ligand-Anchoring Effect of a PAA/PVDF-Cross-Linked Binder Promoting Interfacial Stability and Electrochemical Performance of a Cathode Material","authors":"Wenjing Shi, Songyuchen Ma, Ye Song, Jie Liu","doi":"10.1021/acs.iecr.4c02904","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c02904","url":null,"abstract":"Lithium-ion batteries (LIB) are extensively utilized across industries for their rechargeable nature, but capacity degradation during charge/discharge cycling poses the risk of battery failure. The LiNi_0.8Co_0.1Mn_0.1O₂ (NCM811) cathode material encounters challenges in maintaining high capacity and cycling performance due to cation mixing, ion migration, and electrolyte chemical reactions. While the conventional inorganic coating layer offers some physical protection, it is susceptible to detachment. We introduce organic poly(acrylic acid) (PAA) and adhesive polyvinylidene fluoride (PVDF) cross-linked to form a composite cross-linked adhesive. The combination of PAA and PVDF improves the viscosity of the adhesive and enhances the bonding strength of the cathode material. The C=O group in PAA forms coordination bonds with transition metals, creating a coordinated anchoring effect that enhances the stability of the cathode structure. The reversible ion exchange between H⁺ of −COOH and Li⁺ promotes lithium-ion transport at the electrode interface, enhancing electrochemical performance. After 200 cycles, the capacity retention under 1C conditions reached 90.20%.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"167 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841594","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}

{"title":"Robust Compatible Blend of Poly(butylene carbonate-co-terephthalate) and Poly(butylene adipate-co-terephthalate) toward a High Barrier Blown Film","authors":"Lipeng Liu, Zuming Shang, Lisheng Yu, Xuanbo Liu, Dali Gao, Zhiyong Wei","doi":"10.1021/acs.iecr.4c03599","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03599","url":null,"abstract":"Poly(butylene adipate-<i>co</i>-terephthalate) (PBAT) is the most frequently used biodegradable packaging material, while poly(butylene carbonate-<i>co</i>-terephthalate) (PBCT) is a recently developed biodegradable copolyester with high barrier and closed-loop recycling performance. In this work, the physical–chemical properties of PBAT/PBCT blends, particularly the barrier performance, and their compatible mechanism have been thoroughly examined. The activation energy calculations and molar weight evolutions showed that PBAT/PBCT blends followed a reactive compatible mechanism. Therefore, when the blending mass ratios were between 40 and 60%, combining PBCT and PBAT improved the tensile strength and elongation at the break concurrently. The cocrystal structure formation was aided by reactive compatibility, as demonstrated by thermal characteristics, crystal structure, and long period scale. Additionally, PBAT chain segment crystallization was facilitated by PBCT acting as the nucleation site. Ultimately, the barrier properties, fruit packaging experiment, and bacterial antiadhesion characteristic all illustrated that PBCT would enhance the use of PBAT in packaging films.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"22 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832674","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}

{"title":"Mineralization of Ionic Liquids by Catalytic Ozonation over ZnO/Ca2Fe2O5","authors":"Heng Zhang, Man Zheng, Xuepu Cao, Huiyang Li, Heli Tian, Lilong Zhou, Runjing Liu, Jimmy Yun","doi":"10.1021/acs.iecr.4c03902","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03902","url":null,"abstract":"Imidazolyl-based ionic liquids (ILs) have been widely used in many fields, leading to potential environmental problems due to the toxicity of ILs. In this work, ZnO/Ca₂Fe₂O₅ was prepared and used as an efficient catalyst to mineralize 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) ILs using the catalytic ozonation process. [BMIM]Cl was mineralized to CO₂, H₂O, NH₄⁺, and Cl^– in a short time. The mineralization efficiency of [BMIM]Cl can reach up to &gt;92% in 120 min with a catalyst dosage of 3.3 g/L, an ozone flow rate of 72 mg/min, an initial pH of 10.5, and an initial [BMIM]Cl concentration of 175 mg/L. Meanwhile, the degradation pathway of [BMIM]Cl was also proposed. The physical and chemical properties of the catalysts were characterized by XRD, FTIR, N₂ physical adsorption–desorption profiles, TEM, and XPS. The results showed that the ZnO/Ca₂Fe₂O₅ catalyst had good stability, and the presence of Zn²⁺ promoted the decomposition of ozone and the production of ^•OH, which increased the degradation efficiency of [BMIM]Cl. The catalytic mechanism was also discussed. This research showed a promising way to prepare efficient catalysts for the treatment of [BMIM]Cl using the catalytic ozonation process.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"23 1","pages":""},"PeriodicalIF":4.2,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832682","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}