Chemistry is an experimental science, Category: amides-buliding-blocks, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 52-52-8, Name is 1-Aminocyclopentanecarboxylic acid, molecular formula is C6H11NO2, belongs to amides-buliding-blocks compound. In a document, author is Setti, Khaoula.
Comparative study on pyrolytic transformation mechanism of ANFs-derived carbon membrane for electromagnetic interference shielding application
Selecting suitable precursor and exploring controllable carbonization process is crucial to carbon materials, especially for carbon-based material in electromagnetic interference shielding application. However, carbon materials are primarily used in the forms of powders, which remains big challenge in developing continuous ones. Herein, large-scale aramid nanofibers (ANFs)-derived carbon membrane was developed for the first time. Influence of pyrolysis temperature on chemical constitution and crystalline structure during carbonization process was investigated. The results showed that the decomposition stage of ANFs freestanding membrane begun at similar to 474 degrees C, while the reconstruction stage begun at similar to 600 degrees C. Besides, the rupture of amide bonds occurred around 500 degrees C, which was validated by disappearance of C=O groups. Moreover, the declining integrated intensities I-D/I-G,I- and the sharp rising electrical conductivity of demonstrated progressive aromatization and ring condensation. In addition, the microgrooves with an average diameter of similar to 40 nm were formed during the carbonization. Subsequently, the ANFs-derived carbon membrane exhibited superior conductivity (123.8 S cm(-1)) and electromagnetic shielding effectiveness value of 16 dB (X band) with thickness of 28 mu m. This work provided feasible strategy in fabricating carbon-based membrane for advanced electronic devices.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 52-52-8. Category: amides-buliding-blocks.