Cu-ZnO@C nanoreactors studied by in situ synchrotron SAXS spectroscopy

Ching I. Hong; Hsu Ya Kang; H. Paul Wang; Wei Keng Lin; U. Ser Jeng; Chiu Hun Su

doi:10.1016/j.elspec.2010.10.005

Cu-ZnO@C nanoreactors studied by in situ synchrotron SAXS spectroscopy

Ching I. Hong, Hsu Ya Kang, H. Paul Wang, Wei Keng Lin, U. Ser Jeng, Chiu Hun Su

Department of Environmental Engineering

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

8 Citations (Scopus)

Abstract

By small angle X-ray scattering (SAXS) spectroscopy, changes of electronic density of selected element can be determined. A size growth of Cu-ZnO nanoparticles encapsulated in the carbon shell during temperature-programmed carbonization of Cu²⁺- and Zn²⁺-starch (Cu-to-Zn ratio = 1) at 343-523 K was observed by in situ SAXS. The Cu-ZnO@C behaves like a nanoreactor for catalytic partial oxidation of methanol (POM) to yield H ₂-rich product gas. It seems that the enhanced POM may be associated with the high collision frequency of methanol, oxygen (as O atoms) and copper catalytic species in the confined nanoreactor.

Original language	English
Pages (from-to)	301-303
Number of pages	3
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	184
Issue number	3-6
DOIs	https://doi.org/10.1016/j.elspec.2010.10.005
Publication status	Published - 2011 Apr

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

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10.1016/j.elspec.2010.10.005

Cite this

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title = "Cu-ZnO@C nanoreactors studied by in situ synchrotron SAXS spectroscopy",

abstract = "By small angle X-ray scattering (SAXS) spectroscopy, changes of electronic density of selected element can be determined. A size growth of Cu-ZnO nanoparticles encapsulated in the carbon shell during temperature-programmed carbonization of Cu2+- and Zn2+-starch (Cu-to-Zn ratio = 1) at 343-523 K was observed by in situ SAXS. The Cu-ZnO@C behaves like a nanoreactor for catalytic partial oxidation of methanol (POM) to yield H 2-rich product gas. It seems that the enhanced POM may be associated with the high collision frequency of methanol, oxygen (as O atoms) and copper catalytic species in the confined nanoreactor.",

author = "Hong, {Ching I.} and Kang, {Hsu Ya} and Wang, {H. Paul} and Lin, {Wei Keng} and Jeng, {U. Ser} and Su, {Chiu Hun}",

note = "Funding Information: The financial supports of Taiwan National Science Council, Bureau of Energy, National Synchrotron Radiation Research Center (NSRRC), and National Cheng Kung University (Landmark Project) are gratefully acknowledged.",

year = "2011",

month = apr,

doi = "10.1016/j.elspec.2010.10.005",

language = "English",

volume = "184",

pages = "301--303",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier",

number = "3-6",

}

TY - JOUR

T1 - Cu-ZnO@C nanoreactors studied by in situ synchrotron SAXS spectroscopy

AU - Hong, Ching I.

AU - Kang, Hsu Ya

AU - Wang, H. Paul

AU - Lin, Wei Keng

AU - Jeng, U. Ser

AU - Su, Chiu Hun

N1 - Funding Information: The financial supports of Taiwan National Science Council, Bureau of Energy, National Synchrotron Radiation Research Center (NSRRC), and National Cheng Kung University (Landmark Project) are gratefully acknowledged.

PY - 2011/4

Y1 - 2011/4

N2 - By small angle X-ray scattering (SAXS) spectroscopy, changes of electronic density of selected element can be determined. A size growth of Cu-ZnO nanoparticles encapsulated in the carbon shell during temperature-programmed carbonization of Cu2+- and Zn2+-starch (Cu-to-Zn ratio = 1) at 343-523 K was observed by in situ SAXS. The Cu-ZnO@C behaves like a nanoreactor for catalytic partial oxidation of methanol (POM) to yield H 2-rich product gas. It seems that the enhanced POM may be associated with the high collision frequency of methanol, oxygen (as O atoms) and copper catalytic species in the confined nanoreactor.

AB - By small angle X-ray scattering (SAXS) spectroscopy, changes of electronic density of selected element can be determined. A size growth of Cu-ZnO nanoparticles encapsulated in the carbon shell during temperature-programmed carbonization of Cu2+- and Zn2+-starch (Cu-to-Zn ratio = 1) at 343-523 K was observed by in situ SAXS. The Cu-ZnO@C behaves like a nanoreactor for catalytic partial oxidation of methanol (POM) to yield H 2-rich product gas. It seems that the enhanced POM may be associated with the high collision frequency of methanol, oxygen (as O atoms) and copper catalytic species in the confined nanoreactor.

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DO - 10.1016/j.elspec.2010.10.005

M3 - Article

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SN - 0368-2048

VL - 184

SP - 301

EP - 303

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

IS - 3-6

ER -

Cu-ZnO@C nanoreactors studied by in situ synchrotron SAXS spectroscopy

Abstract

All Science Journal Classification (ASJC) codes

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