Fan, Hao et al. published their research in ACS Applied Materials & Interfaces in 2020 | CAS: 14691-89-5

4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl (cas: 14691-89-5) belongs to piperidine derivatives.Piperidine is a key saturated heterocyclic scaffold found in several of the top-selling small molecule pharmaceuticals and natural alkaloids, with a diverse range of biological activities. Industrially, piperidine is produced by the hydrogenation of pyridine, usually over a molybdenum disulfide catalyst. Pyridine can also be reduced to piperidine via a modified Birch reduction using sodium in ethanol.COA of Formula: C11H21N2O2

Radical Charge Population and Energy: Critical Role in Redox Potential and Cycling Life of Piperidine Nitroxyl Radical Cathodes in Aqueous Zinc Hybrid Flow Batteries was written by Fan, Hao;Zhang, Jiahui;Ravivarma, Mahalingam;Li, Hongbin;Hu, Bo;Lei, Jiafeng;Feng, Yangyang;Xiong, Shizhao;He, Cheng;Gong, Jianying;Gao, Tieyu;Song, Jiangxuan. And the article was included in ACS Applied Materials & Interfaces in 2020.COA of Formula: C11H21N2O2 This article mentions the following:

Redox-active 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) derivatives have recently been investigated to expand the choice of catholyte for aqueous flow batteries (AFBs). However, the effects of substituent R in 4-position on redox potential and corresponding capacity fading mechanism are still unclear. Here, we conduct comparative studies of four R-TEMPO with R = -OH, -NH2, -COOH, and -NHCOCH3 in zinc hybrid AFBs. Exptl. and theor. analyses reveal that low-radical head charge population sum and radical energy, depending on R in 4-position, play a critical role in enhancing redox potential and cycling life of R-TEMPO. The electronic effect brought along by N-acetyl could redistribute the charge and lower systematic energy, making the ring-opening joint sturdy and therefore suppress the side reactions. Accordingly, the 4-NHCOCH3-TEMPO/Zn battery achieves a high capacity retention of >99.65%/day and an open-circuit voltage of 1.71 V. Our findings on the effects of substituent are greatly anticipated to boost the high-energy d., long-life, and eco-friendly TEMPO-based AFBs. In the experiment, the researchers used many compounds, for example, 4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl (cas: 14691-89-5COA of Formula: C11H21N2O2).

4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl (cas: 14691-89-5) belongs to piperidine derivatives.Piperidine is a key saturated heterocyclic scaffold found in several of the top-selling small molecule pharmaceuticals and natural alkaloids, with a diverse range of biological activities. Industrially, piperidine is produced by the hydrogenation of pyridine, usually over a molybdenum disulfide catalyst. Pyridine can also be reduced to piperidine via a modified Birch reduction using sodium in ethanol.COA of Formula: C11H21N2O2

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem