博文

2023年12月嘲风作品集（一）

已有 955 次阅读 2024-2-23 15:14 |个人分类:作品发表|系统分类:论文交流

▲ Vol 10 Issue 03 | December , 2023

Study on the mechanism of surfactant flooding: Effect of betaine structure

Weifeng Lv, Zhaohui Zhou, Qun Zhang, Xiaojie Zhang, Lu Zhang

In order to elucidate the oil displacement mechanism of micro-emulsions formed by different betaines at pore throats, this study selected three betaine surfactants with different hydrophobic branched chains for a microscopic visualization oil displacement experiment. The interfacial tension, dilational modulus, interactions of oil droplets, and apparent viscosity of the emulsions were measured. Besides, the microscopic oil displacement mechanism and oil displacement effects of different betaines in homogeneous and heterogeneous models were investigated. The results revealed the beneficial interfacial activity and viscosity enhancement effects of the three betaine solutions. With the increase in the branched degree of betaines, the strength of interfacial films and the viscosity enhancement effect decreases. In the homogeneous model, betaine solutions emulsify crude oil into droplets with strong interfacial films. The in-situ plugging effect improves oil recovery and the sweep efficiency in the pore throats, and the remaining oil is mainly in the form of droplets. As the branched degree increases, the strength of the interfacial films and the oil recovery decline. In the heterogeneous model, the plugging effect enhances the pore structure heterogeneity. The three betaine solutions can increase the sweep efficiency but the displacement solutions only migrate along the dominant pathway within the sweep range. As a result, a large amount of isolated cluster residual oil remains, resulting in similar oil recovery efficiency for betaine flooding to that of water flooding in the heterogeneous model.

https://www.yandy-ager.com/index.php/ager/article/view/970

▲ Vol 33 Issue 49 | 01 December , 2023

Micropattern-Based Stem Cell Gym: Mechanical Memory Enhanced Stemness Maintenance of Human Dental Pulp Stem Cells and Nerve Regeneration

Chiyu Li, Fanqi Meng, Zhijie Yang, Jiang Peng, Yuwei Guo, Jing Na, Qiusheng Shi, Yu Liu, Yu Wang, Lisha Zheng, Yubo Fan

Stem Cell Gym

In article number 2302829, Yu Wang, Lisha Zheng, Yubo Fan, and co-workers develop a micropatterned based stem cell gym to train dental pulp stem cells for stemness maintenance. The micropattern based gym with 1024 μm2 and aspect ratios of 1:2 and 1:4 effectively enhances the stemness and rescues the pluripotency of stem cells during long-term expansion. The stem cell gym-induced mechanical memory also promotes nerve regeneration in vivo.

https://onlinelibrary.wiley.com/doi/10.1002/adfm.202370292

▲ Vol 62 Issue 49 | 13 December , 2023

Zinc–Air Flow Batteries at the Nexus of Materials Innovation and Reaction Engineering

Xin-He Liu, Xinyan Liu, and Hong-Jie Peng

Electrically rechargeable zinc–air flow batteries (ZAFBs) remain promising candidates for large-scale, sustainable energy storage. The implementation of a flowing electrolyte system could mitigate several inherent issues at static conditions, such as zinc dendrite and byproduct accumulation. This review focuses on two important aspects for the development of advanced ZAFBs, materials innovation and reaction engineering, and summarizes corresponding research efforts in improving the anode utilization and reversibility, designing air cathodes with superior bifunctional catalysis toward oxygen reduction and evolution reactions, and engineering/optimizing cell configurations and complementary operation parameters. Finally, an outlook on the remaining challenges and possible directions of codesign for ZAFBs is supplied. We anticipate this review to illuminate the development of modern ZAFBs and other analogous systems at the nexus of materials science and chemical engineering.

https://pubs.acs.org/doi/10.1021/acs.iecr.3c02416

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