scholarly journals Local structural studies on Co doped ZnS nanowires by synchrotron X-ray atomic pair distribution function and micro-Raman shift

RSC Advances ◽  
2017 ◽  
Vol 7 (59) ◽  
pp. 37402-37411 ◽  
Author(s):  
U. P. Gawai ◽  
B. N. Dole

The atomic structures of nanowires were studied by X-ray atomic pair distribution function analysis and total synchrotron X-ray scattering data. A PDF method was used to describe a wurtzite and zinc-blended mixed phase model.

RSC Advances ◽  
2015 ◽  
Vol 5 (12) ◽  
pp. 8895-8902 ◽  
Author(s):  
E.-E. Bendeif ◽  
A. Gansmuller ◽  
K.-Y. Hsieh ◽  
S. Pillet ◽  
Th. Woike ◽  
...  

Total X-ray scattering coupled to atomic pair distribution function analysis (PDF) and solid state NMR allowed the identification and structural characterisation of isolated molecules and nanocrystals of sodium nitroprusside confined in mesoporous silica.


2013 ◽  
Vol 15 (22) ◽  
pp. 8480 ◽  
Author(s):  
Xiaohao Yang ◽  
Ahmad S. Masadeh ◽  
James R. McBride ◽  
Emil S. Božin ◽  
Sandra J. Rosenthal ◽  
...  

2017 ◽  
Vol 50 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Sylvain Grangeon ◽  
Alejandro Fernandez-Martinez ◽  
Alain Baronnet ◽  
Nicolas Marty ◽  
Agnieszka Poulain ◽  
...  

The structural evolution of nanocrystalline calcium silicate hydrate (C–S–H) as a function of its calcium to silicon (Ca/Si) ratio has been probed using qualitative and quantitative X-ray atomic pair distribution function analysis of synchrotron X-ray scattering data. Whatever the Ca/Si ratio, the C–S–H structure is similar to that of tobermorite. When the Ca/Si ratio increases from ∼0.6 to ∼1.2, Si wollastonite-like chains progressively depolymerize through preferential omission of Si bridging tetrahedra. When the Ca/Si ratio approaches ∼1.5, nanosheets of portlandite are detected in samples aged for 1 d, while microcrystalline portlandite is detected in samples aged for 1 year. High-resolution transmission electron microscopy imaging shows that the tobermorite-like structure is maintained to Ca/Si > 3.


2014 ◽  
Vol 47 (2) ◽  
pp. 561-565 ◽  
Author(s):  
Christopher L. Farrow ◽  
Chenyang Shi ◽  
Pavol Juhás ◽  
Xiaogang Peng ◽  
Simon J. L. Billinge

In this work, the concept of complex modeling (CM) is tested by carrying out a co-refinement of the atomic pair distribution function and small-angle X-ray scattering data from CdS nanoparticles. It is shown that, compared with either single technique alone, the CM approach yields a more accurate and robust structural insight into the atomic structure and morphology of nanoparticles. This work opens the door for the application of CM to a wider class of nanomaterials and for the incorporation of additional experimental and theoretical techniques into these studies.


2005 ◽  
Vol 220 (12/2005) ◽  
Author(s):  
Thomas Proffen ◽  
Katharine L. Page ◽  
Sylvia E. McLain ◽  
Bjørn Clausen ◽  
Timothy W. Darling ◽  
...  

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