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Preparation of hierarchical porous carbon by post activation

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a b s t r a c t
A series of hierarchical porous carbons (HPCs) have been prepared by a combination of soft-templating and
post activation. As evidenced by N2 sorption tests, the pristine mesopores were basically preserved and
micropores were generated on the mesopore wall of mesoporous carbon (MC). The micropore generation on
the mesoporous skeleton can be controlled by simply adjusting the KOH ratio and activation temperature.
The BET surface area, mesopore surface area and total pore volume of the HPCs increase monotonously with
increasing activation temperature and KOH/MC ratio. In contrast, the micropore surface area reaches the
maximum at the ratio of KOH/MC of 4. Further increase of KOH/MC ratio and activation temperature reduces
the micropore surface area. Structural characterizations confirm that the main mesopore channel was
preserved during activation.
Keywords: Characterization methods, Nanomaterials, Microstructure, Porosity

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Informasi Detail

Judul Seri

Materials Letters

No. Panggil

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Penerbit

: Elsevier B.V. All rights reserved., 2009

Deskripsi Fisik

Materials Letters 63 (2009) 1311–1313

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA KARBON

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

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