Rohan, Rupesh; Hung, Miao-Ken; Yang, Yi-Fei; Hsu, Chia-Wei; Yeh, Cheng-Kuang; Chang, Yu-Lung; Lee, Jyh-Tsung published the artcile< Enhancement of the High-Rate Performance of an Organic Radical Thin-Film Battery by Decreasing the Grafting Density of Polymer Brushes>, Reference of 627-27-0, the main research area is enhancement High Rate performance organic radical Thin Film battery.
A high-rate performance enhancement of a poly(2,2,6,6-tetramethylpiperidin-1-oxy-4-yl methacrylate) (PTMA) brush as a thin-film organic radical cathode is achieved by grafting d. reduction n-Octyltrichlorosilane as a capping agent diluted the surface initiator d. on the indium tin oxide (ITO) substrate. Surface initiator-modified ITO substrates (1% and 100%) were grafted with PTMA to yield low (LD) and high (HD) grafting d. PTMA brushes (0.11 and 0.26 chains nm-2, resp.). The cyclic voltammetry and AC impedance results showed that the LD PTMA brush has a lower impedance than the HD PTMA brush electrode. The in situ electrochem. at. force microscopy detected a larger thickness change in the LD PTMA brush during the redox reactions than in the HD PTMA brush. This difference is attributed to the loose packing of the polymer chains in the LD PTMA brush that enhances polymer chain mobility and transportation of ClO4- anions. Furthermore, the thin-film organic radical battery cell with the LD PTMA brush electrode exhibited outstanding high-rate performance (>50% retention at 1500 C) and a good cycle-life performance of 89% retention at 20 C over 400 cycles.
ACS Applied Polymer Materials published new progress about Atomic force microscopy. 627-27-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H8O, Reference of 627-27-0.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts