e-journal

Effect of cation nature of zeolite on carbon replicas and their electrochemical capacitance

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Abstract.
N-doped carbon replicas of zeolite Y are prepared, and the effect of cation nature of zeolite (H+ or Na+) on
the carbon replicas is studied. The morphology, structure and surface properties of the carbon materials
are investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray
diffraction (XRD), N2 adsorption, X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared
spectroscopy (FT-IR). The pore regularity, pore parameter and surface chemical properties of the carbons
may strongly depend on the cation nature of the zeolite Y. The carbon replicas of zeolite HY (H-form of
zeolite Y) possesses higher pore regularity and much larger surface area than those of zeolite NaY (Naform
of zeolite Y), while the latter carbons seem to possess higher carbonization degrees. Electrochemical
measurements show a large faradaic capacitance related to the N- or O-containing groups for the prepared
carbons. Owing to the large specific surface area, high pore regularity and heteroatom-doping, the HYC800
sample derived from zeolite HY presents very high gravimetric capacitance, up to 312.4 F g−1 in H2SO4
electrolyte, and this carbon can operate at 1.2 V with good retention ratio in the range of 0.25 to 10 A g−1.

Keywords: Supercapacitor; Carbon; Nitrogen-containing groups; Cation nature; Zeolite

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Ketersediaan

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Informasi Detail

Judul Seri

Electrochimica Acta

No. Panggil

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Penerbit

New York : Elsevier Ltd.., 2013

Deskripsi Fisik

Electrochimica Acta 89 (2013) 763– 770

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

89 (2013)

Subjek

KAPASITOR ELEKTROKIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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