Arif Aditya F, Kobayashi Yuma, Schneider Elia M, Hess Samuel C, Balgis Ratna, Izawa Takafumi, Iwasaki Hideharu, Taniguchi Shuto, Ogi Takashi, Okuyama Kikuo, Stark Wendelin J
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University , 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
Institute for Chemical and Bioengineering, ETH Zurich , Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland.
Langmuir. 2018 Jan 9;34(1):30-35. doi: 10.1021/acs.langmuir.7b01353. Epub 2017 Dec 15.
Monodisperse, nitrogen-doped hollow carbon spheres of submicron size were synthesized using hexamethoxymethylmelamine as both a carbon and nitrogen source in a short (1 h) microwave-assisted synthesis. After carbonization at 550 °C, porous carbon spheres with a remarkably high nitrogen content of 37.1% were obtained, which consisting mainly of highly basic pyridinic moieties. The synthesized hollow spheres exhibited high selectivity for carbon dioxide (CO) over nitrogen and oxygen gases, with a capture capacity up to 1.56 mmol CO g. The low adsorption enthalpy of the synthesized hollow carbon spheres permits good adsorbent regeneration. Evaluation of the feasibility of scaling up shows their potential for large-scale applications.
以六甲基三聚氰胺作为碳源和氮源，通过短时间（1小时）微波辅助合成法制备了亚微米尺寸的单分散氮掺杂空心碳球。在550℃碳化后，得到了氮含量高达37.1%的多孔碳球，其主要由高碱性吡啶基部分组成。合成的空心球对二氧化碳（CO）的选择性高于氮气和氧气，捕获容量高达1.56 mmol CO/g。合成的空心碳球较低的吸附焓有利于吸附剂的再生。放大可行性评估表明其具有大规模应用的潜力。
