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Papers by Saji Augustine
Angewandte Chemie International Edition, 2008
Journal of Physical Chemistry B, 2005
Angewandte Chemie-international Edition, 2008
Angewandte Chemie-international Edition, 2008
Materials Research Bulletin, 2005
Materials Research Bulletin, 2005
Materials Research Bulletin, 2005
Materials Science and Engineering B-advanced Functional Solid-state Materials, 2005
Among the several layered variants of the perovskite structure, the Aurivillius phases, [Bi 2 O 2... more Among the several layered variants of the perovskite structure, the Aurivillius phases, [Bi 2 O 2 ][A n−1 B n O 3n+1 ], discovered [1] and [2] in 1949 continue to attract attention even today in view of the ferroelectric properties associated with this class of materials [3] and [4]. For ...
Materials Research Bulletin, 2001
Applied Physics Letters, 2006
Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nano... more Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nanopores of multiwalled carbon nitride nanotubes (MWCNNTs). First, the authors produce ˜0.6nm pores on the stems of MWCNNTs by plasma-enhanced chemical vapor deposition. Next, thermal desorption spectra were measured and obtained two different peaks. This is explained by hydrogen desorption barriers of 0.36-0.50eV attributed to two different types of ˜0.6nm pores. Moreover, H2 adsorption between complete interlayers is found to be endothermic by 1.27eV. In this respect, open channels and ˜0.6nm pores on MWCNNTs are considered to provide the route for reversible hydrogen storage.
Materials Characterization, 2004
Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nano... more Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nanopores of multiwalled carbon nitride nanotubes (MWCNNTs). First, the authors produce ~0.6 nm pores on the stems of MWCNNTs by plasma-enhanced chemical vapor deposition. Next, thermal desorption spectra were measured and obtained two different peaks. This is explained by hydrogen desorption barriers of 0.36-0.50 eV attributed to two different types of ~0.6 nm pores. Moreover, H2 adsorption between complete interlayers is found to be endothermic by 1.27 eV. In this respect, open channels and ~0.6 nm pores on MWCNNTs are considered to provide the route for reversible hydrogen storage.
Materials Research Bulletin, 2005
Materials Characterization, 2004
Journal of Physics D-applied Physics, 2003
... 995 Page 4. S Augustine et al radiation as the x-ray source. ... Phys. 59 787 [22] Nitin P Pa... more ... 995 Page 4. S Augustine et al radiation as the x-ray source. ... Phys. 59 787 [22] Nitin P Padture and Paul G Klemens 1997 J. Am. Ceram. Soc 80 1018 [23] Sajan D George, Saji Augustine, Elizabeth Mathai, Radhakrishnan P, Vallabhan CPG and Nampoori VPN 2003 Phys. ...
Semiconductor Science and Technology, 2003
The temperature dependence of electrical conductivity, free carrier concentration (holes), mobili... more The temperature dependence of electrical conductivity, free carrier concentration (holes), mobility and Seebeck coefficient of as-grown Bi2Te3 and Bi2Te2.9Se0.1 single crystals have been studied at temperatures ranging from 280-380 K. Composition and surface dislocations are determined using energy dispersive x-ray analysis and scanning electron microscopy. Hot probe and Hall effect measurements show that as-grown crystals are of p type. Effects
Materials Research Bulletin, 2001
Applied Physics Letters, 2006
Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nano... more Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nanopores of multiwalled carbon nitride nanotubes (MWCNNTs). First, the authors produce ˜0.6nm pores on the stems of MWCNNTs by plasma-enhanced chemical vapor deposition. Next, thermal desorption spectra were measured and obtained two different peaks. This is explained by hydrogen desorption barriers of 0.36-0.50eV attributed to two different types of ˜0.6nm pores. Moreover, H2 adsorption between complete interlayers is found to be endothermic by 1.27eV. In this respect, open channels and ˜0.6nm pores on MWCNNTs are considered to provide the route for reversible hydrogen storage.
Angewandte Chemie International Edition, 2008
Journal of Physical Chemistry B, 2005
Angewandte Chemie-international Edition, 2008
Angewandte Chemie-international Edition, 2008
Materials Research Bulletin, 2005
Materials Research Bulletin, 2005
Materials Research Bulletin, 2005
Materials Science and Engineering B-advanced Functional Solid-state Materials, 2005
Among the several layered variants of the perovskite structure, the Aurivillius phases, [Bi 2 O 2... more Among the several layered variants of the perovskite structure, the Aurivillius phases, [Bi 2 O 2 ][A n−1 B n O 3n+1 ], discovered [1] and [2] in 1949 continue to attract attention even today in view of the ferroelectric properties associated with this class of materials [3] and [4]. For ...
Materials Research Bulletin, 2001
Applied Physics Letters, 2006
Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nano... more Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nanopores of multiwalled carbon nitride nanotubes (MWCNNTs). First, the authors produce ˜0.6nm pores on the stems of MWCNNTs by plasma-enhanced chemical vapor deposition. Next, thermal desorption spectra were measured and obtained two different peaks. This is explained by hydrogen desorption barriers of 0.36-0.50eV attributed to two different types of ˜0.6nm pores. Moreover, H2 adsorption between complete interlayers is found to be endothermic by 1.27eV. In this respect, open channels and ˜0.6nm pores on MWCNNTs are considered to provide the route for reversible hydrogen storage.
Materials Characterization, 2004
Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nano... more Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nanopores of multiwalled carbon nitride nanotubes (MWCNNTs). First, the authors produce ~0.6 nm pores on the stems of MWCNNTs by plasma-enhanced chemical vapor deposition. Next, thermal desorption spectra were measured and obtained two different peaks. This is explained by hydrogen desorption barriers of 0.36-0.50 eV attributed to two different types of ~0.6 nm pores. Moreover, H2 adsorption between complete interlayers is found to be endothermic by 1.27 eV. In this respect, open channels and ~0.6 nm pores on MWCNNTs are considered to provide the route for reversible hydrogen storage.
Materials Research Bulletin, 2005
Materials Characterization, 2004
Journal of Physics D-applied Physics, 2003
... 995 Page 4. S Augustine et al radiation as the x-ray source. ... Phys. 59 787 [22] Nitin P Pa... more ... 995 Page 4. S Augustine et al radiation as the x-ray source. ... Phys. 59 787 [22] Nitin P Padture and Paul G Klemens 1997 J. Am. Ceram. Soc 80 1018 [23] Sajan D George, Saji Augustine, Elizabeth Mathai, Radhakrishnan P, Vallabhan CPG and Nampoori VPN 2003 Phys. ...
Semiconductor Science and Technology, 2003
The temperature dependence of electrical conductivity, free carrier concentration (holes), mobili... more The temperature dependence of electrical conductivity, free carrier concentration (holes), mobility and Seebeck coefficient of as-grown Bi2Te3 and Bi2Te2.9Se0.1 single crystals have been studied at temperatures ranging from 280-380 K. Composition and surface dislocations are determined using energy dispersive x-ray analysis and scanning electron microscopy. Hot probe and Hall effect measurements show that as-grown crystals are of p type. Effects
Materials Research Bulletin, 2001
Applied Physics Letters, 2006
Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nano... more Experimental and theoretical approaches are used to determine hydrogen storage mechanisms in nanopores of multiwalled carbon nitride nanotubes (MWCNNTs). First, the authors produce ˜0.6nm pores on the stems of MWCNNTs by plasma-enhanced chemical vapor deposition. Next, thermal desorption spectra were measured and obtained two different peaks. This is explained by hydrogen desorption barriers of 0.36-0.50eV attributed to two different types of ˜0.6nm pores. Moreover, H2 adsorption between complete interlayers is found to be endothermic by 1.27eV. In this respect, open channels and ˜0.6nm pores on MWCNNTs are considered to provide the route for reversible hydrogen storage.