Preparation of Carbon Alloy Catalysts from a Polyhydroxyamide with Iron Phthalocyanine via a Poly-biphenylenebisoxazole Composite

Preparation of Carbon-Based Catalysts from Nitrogen-Containing Aromatic Polymers

“…Furthermore, catalysts prepared via multistep pyrolysis had higher N content than catalysts prepared via singlestep pyrolysis, and had an onset potential of 0.95 V. Additionally, PA2-Fe-800-II-NH 3 had high N content compared to PA2-Fe-800-I-N 2 . It has been reported that Fe metal promotes elimination of N drastically during pyrolysis at > 600 o C [26][27][28]. In multistep pyrolysis, the sample was washed with acid to remove Fe metal after each pyrolysis step, and NH 3 was used instead of N 2 during pyrolysis at 800 o C. These procedures may help to prevent elimination of N during the preparation of these carbon-based catalysts.…”

A 500 Wh/kg Lithium-Metal Cell Based on Anionic Redox

“…The TM-CAC (TM: Ni, Co, and Fe) catalysis matrixes were obtained by a pyrolyzation procedure. 29 PhRs (PSK-2320, GunEI Chemical Industry) was dissolved in acetone, and then Pc (Sigma Aldrich, >99.5%) was dispersed into the solution under ultrasonication ($5 h). The solvent was removed by evaporator, and the obtained precursors were carbonized at 1,173.15 K for 5 h under Ar flow.…”

High performance Pt-free cathode catalysts for polymer electrolyte membrane fuel cells prepared from widely available chemicals

“…Our research group has been developing NPM cathode catalysts based on the multi-step pyrolysis of polymer precursors such as phenolic resin [15][16][17] and nitrogen containing polymers. 18 Specically, our research group is now interested in infusible polymers such as polyimides. Polyimide is a thermoresistive polymer and the morphology of its precursor can be retained even aer carbonization; therefore, a ne morphology can be expected compared to the polymer from phenolic resin.…”

“…Polyimide is a thermoresistive polymer and the morphology of its precursor can be retained even aer carbonization; therefore, a ne morphology can be expected compared to the polymer from phenolic resin. 18 Additionally, polyimide has been widely used in the current industry as a super engineering plastic and its precursors are widely available for commercialization. This paper describes the details of NPM catalyst preparation from ordinary chemicals, pyromellitic acid dianhydride (PMDA) and 4,4 0 -oxydianiline (ODA), which are the most common polyimide precursors.…”