| | 1. | Probing the colloidal gold nanoparticle/aqueous interface with second harmonic generation Original Research Article
Chemical Physics Letters, In Press, Accepted Manuscript, Available online 17 March 2011
Louis H. Haber, Sheldon J.J. Kwok, Monica Semeraro, Kenneth B. Eisenthal
Graphical abstract
Highlights►Freely adsorbing molecules at gold nanoparticle/water interface probed for first time. ► Second harmonic generation (SHG) from organic dye molecules located at interface. ► SHG signal at varying dye concentrations agrees with modified Langmuir model. ► The model fit provides the free energy and maximum site density of adsorption.
| | | | 2. | Synthesis of Nanoporous Metal oxides Through the Self-assembly of Phloroglucinol-Formaldehyde Resol and Tri-block Copolymer Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 17 March 2011
M.U. Anu Prathap, Rajendra Srivastava
Graphical abstractA direct, one step route to synthesize nanoporous crystalline metal oxides has been developed through the self assembly of phloroglucinol-formaldehyde resol and tri-block copolymer templates. Highlights► One step synthesis route was developed for crystalline nanoporous metal oxides. ► Phloroglucinol was found to be an excellent carbon source for their synthesis. ► Commercially available tri-block copolymers were used as structure directing agents. ► Hydrogen bonding plays a key role for the synthesis of nanoporous metal oxides. ► Variety of nanoporous metal oxides and mixed metal oxides can be prepared.
| | | | 3. | Thermal quenching behavior of emission bands in Eu-doped ZnS nanowires Original Research Article
Journal of Luminescence, In Press, Accepted Manuscript, Available online 17 March 2011
S.Y. Lee, Y.H. Shin, Yongmin Kim, Sangdan Kim, Sanghyun Ju
HighlightsZnS and Eu-doped ZnS nanowires were grown by using CVD method. Two distinctive photoluminescence emission peaks were observed from both samples. These peaks are identified as surface related and dopant related peaks and they show different thermal quenching behavior.
| | | | 9. | Investigating the Adsorption of H2O on ZnO Nanoclusters by First Principle Calculations Original Research Article
Chemical Physics Letters, In Press, Accepted Manuscript, Available online 16 March 2011
Abdullah Al-Sunaidi, Souraya Goumri-Said
Graphical abstract
Highlights► H2O show either chemi-adsorption or dissociation on the surfaces of ZnO nanoclusters, depending on the stability of the clusters and the direction of approach. It was found that some properties of the clusters like the band gap and excitation energies do not change significantly as a result of H2O adsorption, while new IR frequency bands appear in the spectrum.
| | | | 13. | Nanodrop on a nanorough hydrophilic solid surface: contact angle dependence on the size, arrangement and composition of the pillars Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 16 March 2011
Gersh O. Berim, Eli Ruckenstein
Graphical abstractFor a hydrophilic surface, the contact angle of a nanodrop increases as the roughness increases. In contrast, the contact angle of a macroscopic drop decreases with increasing roughness. Highlights► The contact angle of a nanodrop on a hydrophilic surface increases with increasing roughness. ► In contrast, the contact angle of a macrodrop decreases as the roughness increases. ► A gradient of the pillar-fluid interactions generates asymmetrical drops in metastable states
| | | | 14. | Synthesis of a hybrid assembly composed of titanium dioxide nanoparticles and thin multi-walled carbon nanotubes using “click chemistry” Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 16 March 2011
Santosh Kumar Yadav, Sekkarapatti Ramasamy Madeshwaran, Jae Whan Cho
Graphical abstractWe have utilized the click chemistry to assemble the thin multi-walled carbon nanotubes and titanium dioxide nanoparticles. The prepared nanohybrid is highly active and robust for photocatalytic applications. Highlights► Click coupling approach was used to assemble the titanium dioxide and thin multi-walled carbon nanotubes. ► Different characterization techniques were utilized to investigate the prepared nanohybrid. ► The nanohybrid has been demonstrated to be highly robust and active for photocatalytic degradation of organic dye.
| | | | 15. | Surface Plasmon Modes of Gold Nanospheres, Nanorods, and Nanoplates in an Organic Solvent: Phase-Transfer from Aqueous to Organic Media Original Research Article
Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 16 March 2011
Hyo Jin Baik, Soonchang Hong, Sungho Park
Graphical abstractNanoparticle phase-transfer from aqueous to organic media could be performed by two-step phase-transfer process. First, nanoparticles were entrapped at aqueous-organic interface. Second, the other sides of nanoparticles were coated with alkanethiols by immersing nanoparticle films into alkanethiol organic solution after transferring them onto glass substrates. Highlights► Surface plasmon modes of various shapes of Au nanoparticles in an organic medium could be obtained. ► Phase-transfer of metal nanoparticles from aqueous to organic medium was successful without size and shape change. ► Surface plasmon modes of Au nanorods and nanoplates could be observed in an organic medium.
| | | | 16. | Theoretical study on the adsorption behaviors of H2O and NH3 on hydrogen–terminated ZnO nanoclusters and ZnO graphene–like nanosheets Original Research Article
Journal of Molecular Structure, In Press, Accepted Manuscript, Available online 16 March 2011
Benjawan Kaewruksa, Vithaya Ruangpornvisuti
Highlights► Adsorptions of H2O and NH3 on ZnO aromatic–like (Zn3O3H6), ZnO naphthalene–like (Zn5O5H8)and pyrene–like (Zn8O8H10) nanoclusters, ZnO coronene–like (Zn12O12H12) and ZnO circumcoronene–like (Zn27O27H18) nanosheets were studied at the first time. ► These nanoclusters and nanosheets used as H2O and NH3 storage materials have been expected. ► All the H2O and NH3 adsorptions on these nanoclusters and nanosheets are physical adsorption and stable.
| | | | 20. | TeO2-CORE/SnO2-sheath nanowires Original Research Article
Physica E: Low-dimensional Systems and Nanostructures, In Press, Accepted Manuscript, Available online 16 March 2011
Changhyun Jin, Kyungjoon Baek, Jungkeun Lee, Seunghoon Park, Chongmu Lee
Highlights► Synthesis of TeO2/SnO2 nanowires by thermal evaporation of Te powders and ALD of SnO2; ► The blue emission of the TeO2 nanowires is enhanced in intensity by sheathing them with SnO2. ► The blue emission of the TeO2 nanowires is further enhanced by postannealing.
| | | | 22. | Adjustable plasmon resonance in the coaxial gold nanotubes
Solid State Communications, In Press, Accepted Manuscript, Available online 16 March 2011
Haiqing Xu, Hongjian Li, Zhimin Liu, Suxia Xie, Xin Zhou, Jinjun Wu
Highlights► The optical transmission are highly tunable by varying the parametets of the nanotubes. ► The resonance peaks closet to the left forbidden band gap edge can split, collapse and blue-shift. ► The local plasmon resonance modes result from multipolar hybridized resonances.
| | | | 23. | Activation behaviour and dielectric relaxation in polyvinyl alcohol and multiwall carbon nanotube composite films
Solid State Communications, In Press, Accepted Manuscript, Available online 16 March 2011
G. Chakraborty, A.K. Meikap, R. Babu, W.J. Blau
Highlights► FESEM micrograph the rod like morphology where MWNTs are coated by PVA. ► Temperature variation of dc conductivity gives the presence of two activation ranges. ► The dielectric relaxation has been explained in terms of interfacial polarization. ► Two activation energies have also been observed in the study of relaxation time.
| | | | 25. | In Situ Au L3 and L2 Edge XANES Spectral Analysis during Growth of Thiol Protected Gold Nanoparticles for the Study on Particle Size Dependent Electronic Properties Original Research Article
Chemical Physics Letters, In Press, Accepted Manuscript, Available online 15 March 2011
Junya Ohyama, Kentaro Teramura, Tetsuya Shishido, Yutaka Hitomi, Kazuo Kato, Hajime Tanida, Tomoya Uruga, Tsunehiro Tanaka
Graphical abstract
Highlights► Au L edge X-ray absorption spectra of thiol protected gold nanoparticles were analyzed. ► The origin of the characteristic absorption band of the gold nanoparticles was investigated. ► The band is due to Au-S scatterings and electronic transfer from Au to S. ► The electronic properties of the gold nanoparticles with various sizes was evaluated. ► The electrons are increasingly transferred to S atoms as the size decreased.
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