Results 221 to 230 of about 267,962 (256)

Redox Mediators Degradation By Singlet Oxygen in Lithium Oxygen Batteries

ECS Meeting Abstracts, 2020
Non-aqueous lithium-oxygen batteries cycle by forming and decomposing the lithium peroxide to deliver a capacity. During charging, oxidizing the solid insulating lithium peroxide can greatly be facilitated by redox mediators which shuttle electron-holes between the porous substrate and lithium peroxide.
Hun Kim, Yang-Kook Sun
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Nucleophilic Redox Shuttle Surpasses the Efficiency Limitation of Oxygen Redox Electrochemistry

Advanced Materials
Abstract Oxygen redox is a promising route for high‐energy‐density electrochemical systems, but poor oxygen evolution reaction (OER) kinetics and bubble desorption at the gas–liquid–solid interface limit efficiency and stability.
Xiao Xiao, Huang Chen, Zhexuan Liu, Kai Cui, Qingjin Fu, Zhiyang Zheng, Jiachang Liu, Fengyi Zheng, Le Liu, Tianshuai Wang, Xiongwei Zhong, Guangmin Zhou   +11 more
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Redox Flow Lithium Oxygen Batteries

ECS Meeting Abstracts, 2015
Lithium-oxygen battery, because of its extremely high theoretical specific energy, has been intensively pursued as a potential solution for next generation energy storage. Despite numerous studies to date, it suffers from unbearable overpotential loss and poor cycling stability. To address the issues, research has been focused on the development of new
Yunguang Zhu, Qing Wang
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Dissolved Oxygen and Redox Potential

2000
The atmosphere is comprised of nitrogen, oxygen, argon, carbon dioxide, water vapor, and traces of a few other gases. These gases are soluble in water, and an equilibrium state can be reached between atmospheric gases and dissolved gases. Dissolved oxygen is the most important gas in water quality because it is essential in aerobic respiration and it ...
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(Keynote) Redox Catalysis for Redox Flow Lithium-Oxygen Battery

ECS Meeting Abstracts, 2017
Batteries are often the heaviest, costliest and the least-green component of electronic devices, and are currently the bottleneck in the large-scale deployment of stationary energy storage for smart grid and automotive energy storage for electric vehicles.
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Negative thermal expansion and oxygen-redox electrochemistry

Nature
Structural disorder within materials gives rise to fascinating phenomena, attributed to the intricate interplay of their thermodynamic and electrochemical properties1,2. Oxygen-redox (OR) electrochemistry offers a breakthrough in capacity limits, while inducing structural disorder with reduced electrochemical reversibility3-5.
Bao Qiu, Yuhuan Zhou, Haoyan Liang, Minghao Zhang, Kexin Gu, Tao Zeng, Zhou Zhou, Wen Wen, Ping Miao, Lunhua He, Yinguo Xiao, Sven Burke, Zhaoping Liu, Ying Shirley Meng   +13 more
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Reactive Oxygen Species Resistive Redox Mediator in Lithium–Oxygen Batteries

Advanced Materials
Abstract The utilization of redox mediators (RMs) in lithium–oxygen batteries (LOBs) has underscored their utility in high overpotential during the charging process. Among the currently known RMs, it is exceptionally challenging to identify those with a redox potential capable of attenuating singlet oxygen (
Hyun‐Wook Lee, Jiwon Hwang, Ja‐Yeong Kim, Gabriel N. Morais, Katie S. Tang, Myungsoo Choi, Haeun Choi, Hong‐Bin Youn, Seoung‐Tae Kim, Jee Ho Ha, Seok Ju Kang, Shuming Chen, Sung‐Eun Suh, Won‐Jin Kwak   +13 more
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Intracellular Oxygenation and Redox Status in Muscle

1994
Near Infra Red (NIR) spectroscopy can be applied non-invasively to organs and tissues in vivo. Spectra can be taken through organs as thick as the human head for identification of the absorbing components (1). And it is possible to monitor the reactions of the absorbing molecules to physiological manipulations with a multi-wavelength, differential ...
Frans F. Jöbsis-VanderVliet, Paul D. Jöbsis   +1 more
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From Oxygen Redox to Sulfur Redox: A Paradigm for Li-Rich Layered Cathodes

Journal of the American Chemical Society
The utilization of anionic redox chemistry provides an opportunity to further improve the energy density of Li-ion batteries, particularly for Li-rich layered oxides. However, oxygen-based hosts still suffer from unfavorable structural rearrangement, including the oxygen release and transition metal (TM)-ion migration, in association with the tenuous ...
Jing-Chang Li, Jiayi Tang, Jiaming Tian, Chen Cheng, Yuxin Liao, Bingwen Hu, Tao Yu, Haoyu Li, Zhaoguo Liu, Yuan Rao, Yu Deng, Liang Zhang, Xiaoyu Zhang, Shaohua Guo, Haoshen Zhou   +14 more
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Fuatile Redox Cycling: Implications for Oxygen Radical Toxicity

Toxicological Sciences, 1983
The reduction and the potential autoxidation of quinoid compounds may be viewed as taking place in three cell compartments. In microsomal fractions (endoplasmic reticulum) one-electron reduction by NAPDH-cytochrome P450 reductase leads to the formation of semiquinones which rapidly react with oxygen to form the parent quinone and superoxide anions. The
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