Enhanced binding energy and slow kinetics of H2 in boron-substituted graphitic carbon

Alfred Kleinhammes; Robert J. Anderson; Qian Chen; Youmi Jeong; T. C. Mike Chung; Yue Wu

doi:10.1021/jp102972c

Enhanced binding energy and slow kinetics of H2 in boron-substituted graphitic carbon

Alfred Kleinhammes, Robert J. Anderson, Qian Chen, Youmi Jeong, T. C. Mike Chung, Yue Wu

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

4 Scopus citations

Abstract

H₂ binding energy in disordered boron-substituted graphitic carbon was investigated by nuclear magnetic resonance equipped with in situ high pressure hydrogen loading. On the basis of selective adsorption isotherm measurements, a significantly enhanced H2 binding energy of 11.4 kJ/mol was observed in such boronsubstituted carbon, consistent with theoretical predictions. In support of the observed high binding energy at room temperature, H2 diffusion is shown to be slow at 100 K, preventing H₂ from accessing the nanopores at low temperatures.

Original language	English (US)
Pages (from-to)	13705-13708
Number of pages	4
Journal	Journal of Physical Chemistry C
Volume	114
Issue number	32
DOIs	https://doi.org/10.1021/jp102972c
State	Published - Aug 19 2010

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp102972c

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title = "Enhanced binding energy and slow kinetics of H2 in boron-substituted graphitic carbon",

abstract = "H2 binding energy in disordered boron-substituted graphitic carbon was investigated by nuclear magnetic resonance equipped with in situ high pressure hydrogen loading. On the basis of selective adsorption isotherm measurements, a significantly enhanced H2 binding energy of 11.4 kJ/mol was observed in such boronsubstituted carbon, consistent with theoretical predictions. In support of the observed high binding energy at room temperature, H2 diffusion is shown to be slow at 100 K, preventing H2 from accessing the nanopores at low temperatures.",

author = "Alfred Kleinhammes and Anderson, {Robert J.} and Qian Chen and Youmi Jeong and {Mike Chung}, {T. C.} and Yue Wu",

year = "2010",

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volume = "114",

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journal = "Journal of Physical Chemistry C",

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T1 - Enhanced binding energy and slow kinetics of H2 in boron-substituted graphitic carbon

AU - Kleinhammes, Alfred

AU - Anderson, Robert J.

AU - Chen, Qian

AU - Jeong, Youmi

AU - Mike Chung, T. C.

AU - Wu, Yue

PY - 2010/8/19

Y1 - 2010/8/19

N2 - H2 binding energy in disordered boron-substituted graphitic carbon was investigated by nuclear magnetic resonance equipped with in situ high pressure hydrogen loading. On the basis of selective adsorption isotherm measurements, a significantly enhanced H2 binding energy of 11.4 kJ/mol was observed in such boronsubstituted carbon, consistent with theoretical predictions. In support of the observed high binding energy at room temperature, H2 diffusion is shown to be slow at 100 K, preventing H2 from accessing the nanopores at low temperatures.

AB - H2 binding energy in disordered boron-substituted graphitic carbon was investigated by nuclear magnetic resonance equipped with in situ high pressure hydrogen loading. On the basis of selective adsorption isotherm measurements, a significantly enhanced H2 binding energy of 11.4 kJ/mol was observed in such boronsubstituted carbon, consistent with theoretical predictions. In support of the observed high binding energy at room temperature, H2 diffusion is shown to be slow at 100 K, preventing H2 from accessing the nanopores at low temperatures.

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U2 - 10.1021/jp102972c

DO - 10.1021/jp102972c

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AN - SCOPUS:77956160925

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VL - 114

SP - 13705

EP - 13708

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 32

ER -

Enhanced binding energy and slow kinetics of H2 in boron-substituted graphitic carbon

Abstract

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