ACS Appl Mater Interfaces
February 2024
Developing thick electrodes with high-area loadings is a direct method for boosting the energy density. However, this approach also leads to a proportional increase in the resistance to charge transport. Optimizing the microstructure of the electrode can effectively enhance the charge transport kinetics in thick electrodes.
View Article and Find Full Text PDFCompared to Zn-air batteries, by integrating Zn-transition metal compound reactions and oxygen redox reactions at the cell level, hybrid Zn batteries are proposed to achieve higher energy density and energy efficiency. However, attaining relatively higher energy efficiency relies on controlling the discharge capacity. At high area capacities, the proportion of the high voltage section can be neglected, resulting in a lower energy efficiency similar to that of Zn-air batteries.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
October 2023
Despite achievements in suppressing dendrites and regulating Zn crystal growth, secondary aqueous Zn batteries are still rare in the market. Existing strategies mainly focus on electrode modification and electrolyte optimization, while the essential role of ion concentration in liquid-to-solid electrodeposition is neglected for a long time. Herein, the mechanism of concentration regulation in Zn electrodeposition is investigated in depth by combining electrochemical tests, post hoc characterization, and multiscale simulations.
View Article and Find Full Text PDFCobalt-based electrodes receive emerging attention for their high theoretical capacity and rich valence variation ability, but state-of-the-art cobalt-based electrodes present performance far below the theoretical value. Herein, the in-depth reaction mechanisms in the alkaline electrolyte are challenged and proven to be prone to the surface-redox pseudocapacitor behavior due to the low adsorption energy to OH. Using the atomic-level structure engineering strategy after substitution metal searching, the adsorption energy is effectively enhanced, and the peak of CoOOH can be observed from in situ characterization for the first time, leading to the successful transition of charge storage behavior from "supercapacitor" to "battery".
View Article and Find Full Text PDFCobalt-based materials are attracting increasing interest in alkaline Zn batteries due to the high theoretical capacity. However, the practical utilization is restricted by the poor microstructure and insufficient valence-state conversion. Herein, a self-activated formation of hierarchical Co O nanoflakes with high valence-state conversion capability is designed.
View Article and Find Full Text PDFLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
February 2016
Objective: To study the role of JNK (c-Jun N-terminal kinase) signal transduction pathway on the nasal mucosa remodeling in allergic rhinitis rats, to explore whether IL-1β participates the nasal mucosa remodeling in allergic rhinitis by JNK signal transduction pathway.
Method: Totally 60 male Wistar rats (weighing about 200-250 g)were randomly divided into A (AR group) and B group (control group). The rats in A group were sensitized for inducing AR by intraperitoneal injection ovalbumin and Al(OH)₃.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
December 2015
Objective: To study the role of P-JNK and P-c-Jun of JNK (c-Jun N-terminal kinase) on nasal mucosa remodeling in allergic rhinitis rats.
Method: Sixty male Wistar rats (weighing about 200-250 g) were randomly divided into AR group (A group) and B group(control group). The rats in A group were sensitized for inducing AR by intraperitoneal injection of ovalbumin and Al(OH)₃.
Serum Epstein-Barr virus DNA has been approved for diagnosing nasopharyngeal carcinoma (NPC). The goal of this meta-analysis was to evaluate the clinical value of the serum Epstein-Barr virus DNA in the diagnosis of NPC. The PubMed, Embase, Web of Knowledge, Chinese Wanfang Med Online, and National Knowledge Infrastructure (CNKI) databases were searched to identify suitable studies.
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