Facile fabrication of novel highly microporous carbons with superior size-selective adsorption and supercapacitance properties.
نویسندگان
چکیده
A facile approach to fabricate novel highly microporous carbons has been developed by direct carbonization of lowly cross-linked polystyrene. The as-prepared highly microporous carbons demonstrate unusually high micropore rate (97%), high surface area (1108 m(2) g(-1)) and uniform pore size distribution, and thus exhibit excellent size-selective adsorption and electrochemical properties.
منابع مشابه
Facile fabrication and adsorption property of a nano/microporous coordination polymer with controllable size and morphology.
A porous coordination polymer [Cu(3)(btc)(2)] with controllable size and morphology from nanocube to microoctahedron was readily synthesized in an ethanol-water mixture at room temperature by adjusting the concentration of the surfactant and the polymer shows size- and morphology-dependent sorption properties.
متن کاملPreparation of Carbon Molecular Sieves by Chemical Vapor Infiltration of Lignin Based Microporous Carbons
In a previous work we studied the influence of heat treatment on the molecular sieve properties of activated carbons prepared by chemical activation of lignin [1]. The thermal treatment modified the porous structure of the activated carbons, giving rise to solids that separate C6H6 from C6H12, CO2 from CH4 and O2 from N2 with a relative high selectivity. However, the heat treatment drastically ...
متن کاملOne-Step Synthesis of Microporous Carbon Monoliths Derived from Biomass with High Nitrogen Doping Content for Highly Selective CO2 Capture
The one-step synthesis method of nitrogen doped microporous carbon monoliths derived from biomass with high-efficiency is developed using a novel ammonia (NH3)-assisted activation process, where NH3 serves as both activating agent and nitrogen source. Both pore forming and nitrogen doping simultaneously proceed during the process, obviously superior to conventional chemical activation. The as-p...
متن کاملAssessment of the role of micropore size and N-doping in CO2 capture by porous carbons.
The role of micropore size and N-doping in CO2 capture by microporous carbons has been investigated by analyzing the CO2 adsorption properties of two types of activated carbons with analogous textural properties: (a) N-free carbon microspheres and (b) N-doped carbon microspheres. Both materials exhibit a porosity made up exclusively of micropores ranging in size between <0.6 nm in the case of t...
متن کاملHighly Monodisperse Microporous Polymeric and Carbonaceous Nanospheres with Multifunctional Properties
Fabrication of monodisperse porous polymeric nanospheres with diameters below 500 nm remains a great challenge, due to serious crosslinking between neighboring nanospheres during pore-making process. Here we show how a versatile hypercrosslinking strategy can be used to prepare monodisperse microporous polystyrene nanospheres (MMPNSs) with diameters as low as ca. 190 nm. In our approach, an unr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Nanoscale
دوره 5 22 شماره
صفحات -
تاریخ انتشار 2013