caa a22 4500 445303271 CHVBK 20180317142604.0 cr unu---uuuuu 170323e20100901xx s 000 0 eng 10.1007/s12274-010-0023-7 doi (NATIONALLICENCE)springer-10.1007/s12274-010-0023-7 Facile synthesis of porous carbon nitride spheres with hierarchical three-dimensional mesostructures for CO2 capture [Elektronische Daten] [Qiang Li, Jianping Yang, Dan Feng, Zhangxiong Wu, Qingling Wu, Sung Park, Chang-Sik Ha, Dongyuan Zhao] Porous carbon nitride (CN) spheres with partially crystalline frameworks have been successfully synthesized via a nanocasting approach by using spherical mesoporous cellular silica foams (MCFs) as a hard template, and ethylenediamine and carbon tetrachloride as precursors. The resulting spherical CN materials have uniform diameters of ca. 4 μm, hierarchical three-dimensional (3-D) mesostructures with small and large mesopores with pore diameters centered at ca. 4.0 and 43 nm, respectively, a relatively high BET surface area of ∼550 m2/g, and a pore volume of 0.90 cm3/g. High-resolution transmission electron microscope (HRTEM) images, wide-angle X-ray diffraction (XRD) patterns, and Raman spectra demonstrate that the porous CN material has a partly graphitized structure. In addition, elemental analyses, X-ray photoelectron spectra (XPS), Fourier transform infrared spectra (FT-IR), and CO2 temperature-programmed desorption (CO2-TPD) show that the material has a high nitrogen content (17.8 wt%) with nitrogen-containing groups and abundant basic sites. The hierarchical porous CN spheres have excellent CO2 capture properties with a capacity of 2.90 mmol/g at 25 °C and 0.97 mmol/g at 75 °C, superior to those of the pure carbon materials with analogous mesostructures. This can be mainly attributed to the abundant nitrogen-containing basic groups, hierarchical mesostructure, relatively high BET surface area and stable framework. Furthermore, the presence of a large number of micropores and small mesopores also enhance the CO2 capture performance, owing to the capillary condensation effect. Tsinghua University Press and Springer-Verlag Berlin Heidelberg, 2010 Mesoporous materials nationallicence carbon nitride nationallicence nanocasting nationallicence sphere nationallicence hard template nationallicence CO2 capture nationallicence Li Qiang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut Yang Jianping Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut Feng Dan Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut Wu Zhangxiong Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut Wu Qingling Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut Park Sung Department of Polymer Science and Engineering, Pusan National University, Geumjeong-gu, 609-735, Busan, Korea aut Ha Chang-Sik Department of Polymer Science and Engineering, Pusan National University, Geumjeong-gu, 609-735, Busan, Korea aut Zhao Dongyuan Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut Nano Research Tsinghua Press 3/9(2010-09-01), 632-642 1998-0124 3:9<632 2010 3 12274 https://doi.org/10.1007/s12274-010-0023-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12274-010-0023-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Qiang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Yang Jianping Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Feng Dan Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Wu Zhangxiong Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Wu Qingling Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Park Sung Department of Polymer Science and Engineering, Pusan National University, Geumjeong-gu, 609-735, Busan, Korea aut NATIONALLICENCE 700 1- Ha Chang-Sik Department of Polymer Science and Engineering, Pusan National University, Geumjeong-gu, 609-735, Busan, Korea aut NATIONALLICENCE 700 1- Zhao Dongyuan Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 773 0- Nano Research Tsinghua Press 3/9(2010-09-01), 632-642 1998-0124 3:9<632 2010 3 12274 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer