ACS Omega最新文献

筛选
英文 中文
Gold Nanoparticles in Nanobiotechnology: From Synthesis to Biosensing Applications 纳米生物技术中的纳米金颗粒:从合成到生物传感应用
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.3c10352
Arun Karnwal, Rohan Samir Kumar Sachan, Inderpal Devgon, Jyotsna Devgon, Gaurav Pant, Mitali Panchpuri, Akil Ahmad, Mohammed B. Alshammari, Kaizar Hossain, Gaurav Kumar
{"title":"Gold Nanoparticles in Nanobiotechnology: From Synthesis to Biosensing Applications","authors":"Arun Karnwal, Rohan Samir Kumar Sachan, Inderpal Devgon, Jyotsna Devgon, Gaurav Pant, Mitali Panchpuri, Akil Ahmad, Mohammed B. Alshammari, Kaizar Hossain, Gaurav Kumar","doi":"10.1021/acsomega.3c10352","DOIUrl":"https://doi.org/10.1021/acsomega.3c10352","url":null,"abstract":"Nanobiotechnology has ushered in a new era of scientific discovery where the unique properties of nanomaterials, such as gold nanoparticles, have been harnessed for a wide array of applications. This review explores gold nanoparticles’ synthesis, properties, and multidisciplinary applications, focusing on their role as biosensors. Gold nanoparticles possess exceptional physicochemical attributes, including size-dependent optical properties, biocompatibility, and ease of functionalization, making them promising candidates for the development of biosensing platforms. The review begins by providing a comprehensive overview of gold nanoparticle synthesis techniques, highlighting the advantages and disadvantages of various approaches. It then delves into the remarkable properties that underpin their success in biosensing, such as localized surface plasmon resonance and enhanced surface area. The discussion also includes the functionalization strategies that enable specific binding to biomolecules, enhancing the sensitivity and selectivity of gold-nanoparticle-based biosensors. Furthermore, this review surveys the diverse applications of gold nanoparticles in biosensing, encompassing diagnostics, environmental monitoring, and drug delivery. The multidisciplinary nature of these applications underscores the versatility and potential of gold nanoparticles in addressing complex challenges in healthcare and environmental science. The review emphasizes the pressing need for further exploration and research in the field of nanobiotechnology, particularly regarding the synthesis, properties, and biosensing applications of gold nanoparticles. With their exceptional physicochemical attributes and versatile functionalities, gold nanoparticles present a promising avenue for addressing complex challenges in healthcare and environmental science, making it imperative to advance our understanding of their synthesis, properties, and applications for enhanced biosensing capabilities and broader scientific innovation.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent Advances in the Titanium-Based Catalysts for Ring-Opening Polymerization 钛基开环聚合催化剂的最新进展
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c00048
Wei Wang
{"title":"Recent Advances in the Titanium-Based Catalysts for Ring-Opening Polymerization","authors":"Wei Wang","doi":"10.1021/acsomega.4c00048","DOIUrl":"https://doi.org/10.1021/acsomega.4c00048","url":null,"abstract":"At present, economic development and daily life cannot be separated from organic synthetic polymers. However, a large number of nondegradable polymers have caused serious pollution to the environment. It is necessary for sustainable development to use biodegradable materials instead of traditional polymers, but it is not yet comparable in performance and cost to the competitor it will replace. Therefore, there is a long way to go to develop effective synthesis methods. Through ring-opening polymerization, some cyclic monomers, such as ε-caprolactone or lactide, can be synthesized into biodegradable polymers, which can not only replace traditional synthetic polymers in some fields but also have applications in drug delivery, surgical consumables, human implant materials, bone materials, etc. Ring-opening polymerization is a potential candidate for solving environmental pollution. For ring-opening polymerization, catalysts are very important, among which titanium catalysts have attracted much attention because of their high efficiency, economy, and nontoxicity. In this paper, the development status of organotitanium compounds as ring-opening polymerization catalysts is reviewed, including the effects of different ligand structures on polymerization behavior and polymer structure, and its development trend is prospected. We hope that this review will be helpful for developing efficient ring-opening polymerization catalysts.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Esterification of Levulinic Acid with Different Alcohols Using Mesoporous Stannosilicates As the Catalyst 使用介孔硅烷作为催化剂实现左旋酮酸与不同醇类的酯化反应
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c04598
Bruna Ezequielle Bernardes Costa, Antonio Osimar Souza da Silva, Simoni Margareti Plentz Meneghetti
{"title":"Esterification of Levulinic Acid with Different Alcohols Using Mesoporous Stannosilicates As the Catalyst","authors":"Bruna Ezequielle Bernardes Costa, Antonio Osimar Souza da Silva, Simoni Margareti Plentz Meneghetti","doi":"10.1021/acsomega.4c04598","DOIUrl":"https://doi.org/10.1021/acsomega.4c04598","url":null,"abstract":"The mesoporous stannosilicates SnMCM-41–25 and SnMCM-41–80, synthesized, respectively, at 25 and 80 °C and exhibiting a well-ordered hexagonal structure, were applied for the first time as heterogeneous catalysts in the esterification of levulinic acid (LA) with different alcohols. The nonhydrothermal method was effective to obtain materials with a high degree of ordering, high acidity, and promising catalytic activity in this esterification. The SnMCM-41–80 led to conversions of 71.0 and 83.6% in 120 and 180 min, respectively, while the respective values for the material without Sn were 33.2 and 40.1% under the same conditions (MeOH:LA molar ratio of 5:1, 1 wt % catalyst, 3 h, 120 °C). In addition, concerning the use of different alcohols, the reaction rate constants (<i>k</i><sub>ap</sub>) were related to the effects of substituents by Taft equation. In general, the polar and steric effects follow the Taft relation, and the length of the chain exerted less influence on the decrease in conversion in comparison to the presence of branches. These results indicate that it is possible to incorporate Sn into the structure of MCM41, thus, making the modified materials more active in the esterification investigated.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanistic Study on the Influence of Wax on Hydrate Formation Process 蜡对水合物形成过程影响的机理研究
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c04920
Jinghua Chen, Huiyong Liang, Haihong Chen, Shi Shen, Haiyuan Yao, Rui Qin, Yang Ge, Ting Huang, Xin Lv
{"title":"Mechanistic Study on the Influence of Wax on Hydrate Formation Process","authors":"Jinghua Chen, Huiyong Liang, Haihong Chen, Shi Shen, Haiyuan Yao, Rui Qin, Yang Ge, Ting Huang, Xin Lv","doi":"10.1021/acsomega.4c04920","DOIUrl":"https://doi.org/10.1021/acsomega.4c04920","url":null,"abstract":"To manage the interactions between wax and hydrate formation, a comprehensive understanding of the system’s thermodynamics and flow characteristics is essential. Wax and hydrates coexist under low-temperature and high-pressure conditions, mutually influencing each other both thermodynamically and kinetically. This study focused on two main aspects: how wax affects the rate of hydrate formation in the oil–water system and how hydrate formation influences the thermodynamics of wax crystal precipitation. The presence of wax decreased the rate of hydrate formation, especially at higher wax contents. In systems with high wax content, over 70% of wax precipitated before hydrate formation, leading to less precipitation within the hydrate formation temperature range. With low water content, there were more nucleation sites for wax crystals in the oil phase, resulting in a greater difference in precipitation rates among different wax contents. For water content greater than 10%, the differences in precipitation rates were less significant, indicating a diminished effect of water content on wax crystal precipitation rates. Hydrates’ hydrophilic nature had a limited impact on wax crystal nucleation and growth. Generally, wax crystals precipitate before hydrate formation, necessitating control measures for wax deposition during production processes.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Achieving High Dispersion of Pd in Small-Pore Zeolite SSZ-13: A High-Efficiency Low-Temperature NOx Adsorber 在小孔沸石 SSZ-13 中实现钯的高分散性:一种高效低温氮氧化物吸附器
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c01873
Yatao Liu, Kaixiang Li, Yuankai Shao, Xiaoning Ren, Bingjie Zhou, Anqi Dong, Xi Liu, Cheng Lv, Zhenguo Li
{"title":"Achieving High Dispersion of Pd in Small-Pore Zeolite SSZ-13: A High-Efficiency Low-Temperature NOx Adsorber","authors":"Yatao Liu, Kaixiang Li, Yuankai Shao, Xiaoning Ren, Bingjie Zhou, Anqi Dong, Xi Liu, Cheng Lv, Zhenguo Li","doi":"10.1021/acsomega.4c01873","DOIUrl":"https://doi.org/10.1021/acsomega.4c01873","url":null,"abstract":"Passive NO<sub><i>x</i></sub> adsorber (PNA) materials are primarily considered for reducing nitrogen oxide emissions during the low-temperature cold start of a motor vehicle. Pd/SSZ-13 has attracted considerable attention because of its outstanding hydrothermal stability and sulfur resistance. Optimizing the dispersion of precious metal Pd in Pd/SSZ-13 is crucial for enhancing PNA performance and nitrogen oxide adsorption capability. In this study, we prepared Pd/SSZ-13 using different methods and evaluated their influence on the NO<sub><i>x</i></sub> adsorption capability. The characterization results show that the dispersion of precious metal Pd in the Pd/SSZ-13 catalyst prepared by the quantitative ion-exchange method is as high as 92.13%, and the loading amount is as high as 98.93%. Pd predominantly exists as Pd<sup>2+</sup>, achieving near-total loading and further improving the catalyst’s NO<sub><i>x</i></sub> adsorption capacity. This study offers innovative approaches and methods for applying Pd/SSZ-13 as a PNA material, serving as a reference for its further optimization and performance enhancement. Continued research into the preparation and adsorption performance of Pd/SSZ-13 materials could offer solutions to reduce motor vehicle nitrogen oxide emissions.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highly Efficient Adsorption of Norfloxacin by Low-Cost Biochar: Performance, Mechanisms, and Machine Learning-Assisted Understanding 低成本生物炭对诺氟沙星的高效吸附:性能、机理和机器学习辅助理解
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c03496
Miaomiao Zhang, Pengwei Li, Dong Guo, Ziheng Zhao, Weisheng Feng, Zhijuan Zhang
{"title":"Highly Efficient Adsorption of Norfloxacin by Low-Cost Biochar: Performance, Mechanisms, and Machine Learning-Assisted Understanding","authors":"Miaomiao Zhang, Pengwei Li, Dong Guo, Ziheng Zhao, Weisheng Feng, Zhijuan Zhang","doi":"10.1021/acsomega.4c03496","DOIUrl":"https://doi.org/10.1021/acsomega.4c03496","url":null,"abstract":"This study employed potassium carbonate (K<sub>2</sub>CO<sub>3</sub>) activation using ball milling in conjunction with pyrolysis to produce biochar from one traditional Chinese herbal medicine <i>Atropa belladonna</i> L. (ABL) residue. The resulting biochar KBC<sub>800</sub> was found to possess a high specific surface area (<i>S</i><sub>BET</sub> = 1638 m<sup>2</sup>/g) and pore volume (1.07 cm<sup>3</sup>/g), making it effective for removing norfloxacin (NOR) from wastewater. Batch adsorption tests confirmed its effectiveness in eliminating NOR, along with its excellent resistance to interference from impurity ions or antibiotics. Notably, the maximum experimental NOR adsorption capacity on KBC<sub>800</sub> was 666.2 mg/g at 328 K, surpassing those of other biochar materials reported. The spontaneous and endothermic adsorption of NOR on KBC<sub>800</sub> could be better suited to the Sips model. Additionally, KBC<sub>800</sub> adsorbs NOR mainly by pore filling, with electrostatic attraction, π–π EDA interactions, and hydrogen bonds also contributing significantly. The machine learning model revealed that NOR adsorption on the biochar was significantly affected by the initial concentration, followed by <i>S</i><sub>BET</sub> and average pore size. Based on the random forest model, it is demonstrated that biochar is able to adsorb NOR effectively. It is noteworthy that the use of low-cost pharmaceutical wastes to produce adsorbents for emerging contaminants such as antibiotics could have greater potential for future practical applications under the ongoing dual carbon policy.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Damage Self-Healing Property of Dissolved Salt Columns in Solid Potash Mine 固体钾盐矿中溶解盐柱的损伤自愈特性
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c04561
Luwei Zhang, Gaofeng Ren, Yongxiang Ge, Congrui Zhang, Fujiao Chu
{"title":"Damage Self-Healing Property of Dissolved Salt Columns in Solid Potash Mine","authors":"Luwei Zhang, Gaofeng Ren, Yongxiang Ge, Congrui Zhang, Fujiao Chu","doi":"10.1021/acsomega.4c04561","DOIUrl":"https://doi.org/10.1021/acsomega.4c04561","url":null,"abstract":"The objective of this work was to investigate the self-healing properties and mechanical damage characteristics of dissolved salt columns under different humidity and time conditions. Based on the results of electron microscope scanning and uniaxial mechanical tests, the microscopic element distribution of the ore and the microscopic morphology of the minerals were investigated, and the healing, mechanical, and damage properties of the specimens were analyzed, which revealed the microscopic reinforcement mechanism of the damage healing of the dissolved salt columns. The results showed that the healing reinforcement, compressive strength, and modulus of elasticity of dissolved salt columns under uniaxial compression show a tendency to increase, then decrease with the increase of humidity, and gradually increase with the increase of the maintenance time and reach the maximum value at 10% humidity and 30 days of maintenance time, which are 3.48, 8.07, and 650 MPa, respectively. The damage type of the healed specimen as a whole gradually transitioned from tensile damage to shear-slip type, indicating that the brittle damage characteristics of the specimen under loading became more and more significant. Based on the principle of strain equivalence, the damage evolution equation under uniaxial compression of solid potash dissolved salt columns describes the damage evolution law and destruction process of the specimen, and the results of the damage characterization of the dissolved salt columns are consistent with the change rule of the healing properties and mechanical properties with humidity and conservation time. Based on the fine morphological features of the dissolved salt column specimens after self-healing, three different self-healing microscopic mechanisms for damage recovery of solid potash dissolved salt columns are summarized, namely, healing of damaged microcracks based on diffusion, recrystallization healing of brine-filled microfractures, and healing adhesion of crystal particles in dissolved zones. These microstructures effectively transform cracks into isolated sections and play a key role in improving mechanical properties. In addition, the higher the humidity, the thicker adsorbed water film is produced on the fissure surface, which accelerates the transportation of materials on the fissure surface, and the healing rate of the dissolved salt columns increases. However, when the humidity is too high, it causes the evaporation of the liquid film to be less than the recharge of water vapor, which reduces the healing rate of the dissolved salt columns. Thus, suitable humidity produces a more pronounced healing effect than an environment maintained at a constant high humidity level. The research results can provide theoretical guidance for the filling mining of solid potassium salt.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of a Ternary Nitride Ti10Cu3N4 with a Unique Structure Type 鉴定具有独特结构类型的三元氮化物 Ti10Cu3N4
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c04371
Kyubin Hwang, Young Whan Cho, Jihyun Hong, Yunseok Kim, Jae-Hyeok Shim, Hyungsub Kim, Young-Su Lee
{"title":"Identification of a Ternary Nitride Ti10Cu3N4 with a Unique Structure Type","authors":"Kyubin Hwang, Young Whan Cho, Jihyun Hong, Yunseok Kim, Jae-Hyeok Shim, Hyungsub Kim, Young-Su Lee","doi":"10.1021/acsomega.4c04371","DOIUrl":"https://doi.org/10.1021/acsomega.4c04371","url":null,"abstract":"This study presents the synthesis and detailed structural analysis of the ternary nitride Ti<sub>10</sub>Cu<sub>3</sub>N<sub>4</sub>. Initially identified as Ti<sub>3</sub>CuN within the Ti–Cu–N ternary phase diagram, its crystal structure remained unresolved and was characterized solely as belonging to the tetragonal crystal system. Through a comprehensive structural analysis, this study proposes a revised stoichiometry as Ti<sub>10</sub>Cu<sub>3</sub>N<sub>4</sub>; its crystal structure represents a previously unreported structure type within the <i>P4</i><sub><i>2</i></sub><i>/mnm</i> space group. Its atomic arrangement was elucidated through a combination of X-ray powder diffraction profile analysis and density functional theory calculations, corroborated by neutron diffraction studies. Furthermore, the hydrogen storage properties of Ti<sub>10</sub>Cu<sub>3</sub>N<sub>4</sub> were characterized, demonstrating a hydrogen absorption capacity of approximately 0.6 wt % with desorption occurring in the temperature range of 200–550 °C.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heterogeneity of Organoclay Complexes in Shale Regulates the Generation of Shale Oil 页岩中有机粘土复合物的异质性调节页岩油的生成
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.4c02101
Jingong Cai, Jiazong Du, Longfei Lu, Qigui Jiang, Xiaoxiao Ma, Jinyi He
{"title":"Heterogeneity of Organoclay Complexes in Shale Regulates the Generation of Shale Oil","authors":"Jingong Cai, Jiazong Du, Longfei Lu, Qigui Jiang, Xiaoxiao Ma, Jinyi He","doi":"10.1021/acsomega.4c02101","DOIUrl":"https://doi.org/10.1021/acsomega.4c02101","url":null,"abstract":"Organic matter (OM) and clay minerals are important components in shale, which are intimately associated with each other in the form of organoclay complexes. The diverse mineral-OM associations result in varying OM occurrences, which possess distinct hydrocarbon generation potential and ultimately affect the accumulation of shale oil. Therefore, the investigation of the heterogeneity of organoclay complexes is crucial to gaining a comprehensive understanding of the varying exploration potential of shale oil resources. In the present study, shale samples from three intervals in Dongying Depression were collected to investigate the mineralogical and organic characteristics of the organoclay complexes, aiming to explore their impact on the yield and composition of shale oil. Results showed that the smectite gradually converted into illite, which was accompanied by the release of OM from clay mineral interlayers and the desorption of chemically adsorbed OM. The yield and composition of shale oil cannot solely be explained by the OM content and types in the shale. Instead, they are intricately linked to the evolution of minerals and OM occurrence. From the perspective of the heterogeneity of organoclay complexes, despite the abundant OM content in shallower intervals (Es3x), the shale oil formation remains limited due to the low degree of mineral evolution and the stabilization of the adsorbed OM by clay minerals. Consequently, this leads to a higher proportion of resin, which is not conducive to the mobility of shale oil. In contrast, despite the OM content varying slightly in the deeper interval (Es4s), the elevated smectite illitization degree promotes the desorption of OM and its conversion into hydrocarbons. This results in a substantial increase in shale oil formation and a higher proportion of saturates, greatly enhancing the mobility of shale oil. These findings are profoundly significant for understanding shale oil generation and accumulation.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CO2/H2 Separation by Synergistic Enhanced Hydrate Method with SDS and R134a 利用 SDS 和 R134a 协同增强水合物法分离 CO2/H2
IF 4.1 3区 化学
ACS Omega Pub Date : 2024-07-05 DOI: 10.1021/acsomega.3c09839
Tian Qi, Mengfei Liu, Zihan Lu, Qianhao Zhang, Miao Yang, Lanlan Jiang, Yanqiu Xiao, Wenfeng Hu, Runfeng Tian, Chuanxiao Cheng
{"title":"CO2/H2 Separation by Synergistic Enhanced Hydrate Method with SDS and R134a","authors":"Tian Qi, Mengfei Liu, Zihan Lu, Qianhao Zhang, Miao Yang, Lanlan Jiang, Yanqiu Xiao, Wenfeng Hu, Runfeng Tian, Chuanxiao Cheng","doi":"10.1021/acsomega.3c09839","DOIUrl":"https://doi.org/10.1021/acsomega.3c09839","url":null,"abstract":"The synergistic effect of thermodynamic promoter tetrafluoroethane (R134a) and kinetic promoter sodium dodecyl sulfate (SDS) can significantly improve the phase equilibrium conditions required for CO<sub>2</sub> hydrate formation and promote rapid generation of CO<sub>2</sub> hydrate. Based on this, this study investigates the influence of SDS and R134a synergy on the separation of CO<sub>2</sub>/H<sub>2</sub> mixed gas using the hydrate method. The research reveals that without SDS addition, R134a hydrate forms first at the gas–liquid interface before CO<sub>2</sub> hydrate induction, hindering gas–liquid exchange. The addition of SDS can inhibit the formation of the hydrate film, enhance the initiator effect of R134a in the CO<sub>2</sub> hydrate formation process, accelerate the nucleation of CO<sub>2</sub> hydrate, and thus synergistically strengthen the separation of CO<sub>2</sub>/H<sub>2</sub> mixed gases. Hydrate formation can be achieved at a concentration of 100 ppm of SDS solution, and the synergistic growth effect of R134a and CO<sub>2</sub> hydrate becomes more significant with increasing SDS concentration. Optimal separation efficiency and maximum H<sub>2</sub> concentration are achieved at 500 ppm of SDS, with 42.29 and 54.88% separation efficiency and H<sub>2</sub> concentration, respectively. Decreasing the initial charge temperature has little impact on separation efficiency but significantly reduces the induction time, reducing it to 3 min at 12 °C. This study improved the separation efficiency of CO<sub>2</sub> and H<sub>2</sub> mixed gas, providing a better reference for hydrogen purification by the hydrate method.","PeriodicalId":22,"journal":{"name":"ACS Omega","volume":null,"pages":null},"PeriodicalIF":4.1,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141549060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信