Nanoporous brown coal adsorbents prepared by alkaline activation with thermal shock

Autor:	V. A. Kucherenko, T. G. Shendrik, Yu. V. Tamarkina
Rok vydání:	2012
Předmět:	Thermal shock Macropore Chemistry Nanoporous General Chemical Engineering Mineralogy General Chemistry Alkali metal Isothermal process Fuel Technology Adsorption Chemical engineering Volume (thermodynamics) Mesoporous material
Zdroj:	Solid Fuel Chemistry. 46:289-294
ISSN:	1934-8029 0361-5219
DOI:	10.3103/s0361521912050114
Popis:	The properties of nanoporous adsorbents prepared from brown coal by alkaline activation with thermal shock (800°C) were studied. The dependences of the value of SBET and the volumes of macropores, mesopores, micropores, and pores to 1 nm in diameter in the nanoporous adsorbents on isothermal exposure time (to 90 min) and the nature of alkali (LiOH, NaOH, and KOH) were determined. The comparison of changes in pore volumes and pore size distributions indicated that the adsorbent with the most developed subnanopore structure was formed at the initial stage (to 10 min) of activation. In this material, about a half of the total pore volume consisted of pores with diameters to 1 nm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::350e767349c871972b177952629d49fd https://doi.org/10.3103/s0361521912050114 Zobrazit plný text záznamu Full text from SpringerLink