Effect of potassium-doping on the microstructure development in polyfurfuryl alcohol - Derived activated carbon

Hongxin Zhang; Vinay V. Bhat; Peter X. Feng; Cristian I. Contescu; Nidia C. Gallego

doi:10.1016/j.carbon.2012.07.012

Effect of potassium-doping on the microstructure development in polyfurfuryl alcohol - Derived activated carbon

Hongxin Zhang, Vinay V. Bhat, Peter X. Feng, Cristian I. Contescu, Nidia C. Gallego

Nanomaterials Chemistry Group

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Potassium-doped activated carbon was prepared by mixing potassium salt with polyfurfuryl alcohol precursor followed by carbonization and activation. Several experimental techniques, such as thermogravimetric analysis, gas adsorption, X-ray diffraction and Raman scattering spectroscopy were employed to understand the effects of potassium on the texture and pore structures of the activated carbon, which ultimately affects the hydrogen adsorption properties. After doping with potassium, the activated carbon exhibits higher surface area, higher micropore volume, and enhanced hydrogen adsorption capacity. Understanding of how alkali metals affect surface area and micropore development in activated carbon may help to clarify the hydrogen adsorption mechanism and improve the design of suitable carbon-based hydrogen storage materials.

Original language	English
Pages (from-to)	5278-5285
Number of pages	8
Journal	Carbon
Volume	50
Issue number	14
DOIs	https://doi.org/10.1016/j.carbon.2012.07.012
State	Published - Nov 2012

Funding

This research is supported by the US Department of Energy, Basic Energy Sciences, Division of Materials Sciences and Engineering. PXF and HZ acknowledge partial support by NSF-EPSCoR fellows and HERE program. VVB acknowledge support from ORISE/ORNL postodoctoral programs.

Funders	Funder number
NSF-EPSCoR fellows
ORISE/ORNL
US Department of Energy
Basic Energy Sciences
Division of Materials Sciences and Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.carbon.2012.07.012

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title = "Effect of potassium-doping on the microstructure development in polyfurfuryl alcohol - Derived activated carbon",

abstract = "Potassium-doped activated carbon was prepared by mixing potassium salt with polyfurfuryl alcohol precursor followed by carbonization and activation. Several experimental techniques, such as thermogravimetric analysis, gas adsorption, X-ray diffraction and Raman scattering spectroscopy were employed to understand the effects of potassium on the texture and pore structures of the activated carbon, which ultimately affects the hydrogen adsorption properties. After doping with potassium, the activated carbon exhibits higher surface area, higher micropore volume, and enhanced hydrogen adsorption capacity. Understanding of how alkali metals affect surface area and micropore development in activated carbon may help to clarify the hydrogen adsorption mechanism and improve the design of suitable carbon-based hydrogen storage materials.",

author = "Hongxin Zhang and Bhat, {Vinay V.} and Feng, {Peter X.} and Contescu, {Cristian I.} and Gallego, {Nidia C.}",

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AU - Zhang, Hongxin

AU - Bhat, Vinay V.

AU - Feng, Peter X.

AU - Contescu, Cristian I.

AU - Gallego, Nidia C.

PY - 2012/11

Y1 - 2012/11

N2 - Potassium-doped activated carbon was prepared by mixing potassium salt with polyfurfuryl alcohol precursor followed by carbonization and activation. Several experimental techniques, such as thermogravimetric analysis, gas adsorption, X-ray diffraction and Raman scattering spectroscopy were employed to understand the effects of potassium on the texture and pore structures of the activated carbon, which ultimately affects the hydrogen adsorption properties. After doping with potassium, the activated carbon exhibits higher surface area, higher micropore volume, and enhanced hydrogen adsorption capacity. Understanding of how alkali metals affect surface area and micropore development in activated carbon may help to clarify the hydrogen adsorption mechanism and improve the design of suitable carbon-based hydrogen storage materials.

AB - Potassium-doped activated carbon was prepared by mixing potassium salt with polyfurfuryl alcohol precursor followed by carbonization and activation. Several experimental techniques, such as thermogravimetric analysis, gas adsorption, X-ray diffraction and Raman scattering spectroscopy were employed to understand the effects of potassium on the texture and pore structures of the activated carbon, which ultimately affects the hydrogen adsorption properties. After doping with potassium, the activated carbon exhibits higher surface area, higher micropore volume, and enhanced hydrogen adsorption capacity. Understanding of how alkali metals affect surface area and micropore development in activated carbon may help to clarify the hydrogen adsorption mechanism and improve the design of suitable carbon-based hydrogen storage materials.

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SN - 0008-6223

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SP - 5278

EP - 5285

JO - Carbon

JF - Carbon

IS - 14

ER -

Effect of potassium-doping on the microstructure development in polyfurfuryl alcohol - Derived activated carbon

Abstract

Funding

UN SDGs

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