Infrared study of some synthetic phases of malachite (Cu2 (OH) 2CO3)–hydrozincite (Zn5 (OH) 6 (CO3) 2) series D Stoilova, V Koleva, V Vassileva Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 58 (9 …, 2002 | 189 | 2002 |
Precursor-based methods for low-temperature synthesis of defectless NaMnPO 4 with an olivine-and maricite-type structure V Koleva, T Boyadzhieva, E Zhecheva, D Nihtianova, S Simova, G Tyuliev, ... CrystEngComm 15 (44), 9080-9089, 2013 | 67 | 2013 |
Competitive lithium and sodium intercalation into sodium manganese phospho-olivine NaMnPO 4 covered with carbon black T Boyadzhieva, V Koleva, E Zhecheva, D Nihtianova, L Mihaylov, ... RSC advances 5 (106), 87694-87705, 2015 | 65 | 2015 |
Nano-crystalline LiMnPO4 prepared by a new phosphate–formate precursor method V Koleva, R Stoyanova, E Zhecheva Materials Chemistry and Physics 121 (1-2), 370-377, 2010 | 63 | 2010 |
A new phosphate-formate precursor method for the preparation of carbon coated nano-crystalline LiFePO4 V Koleva, E Zhecheva, R Stoyanova Journal of alloys and compounds 476 (1-2), 950-957, 2009 | 61 | 2009 |
Infrared and Raman studies of manganese dihydrogen phosphate dihydrate, Mn (H 2 PO 4) 2· 2H 2 O. I: Region of the vibrations of the phosphate ions and external modes of the … V Koleva, V Stefov, A Cahil, M Najdoski, B Šoptrajanov, B Engelen, ... Journal of Molecular Structure 917 (2), 117-124, 2009 | 55* | 2009 |
Vibrational behavior of the phosphates ions in dittmarite-type compounds M′ M ″PO4· H2O (M′= K+, NH4+; M ″= Mn2+, Co2+, Ni2+) VG Koleva Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 66 (2 …, 2007 | 43 | 2007 |
Infrared and Raman studies of the solids in the Mg (CH3COO) 2–Zn (CH3COO) 2–H2O system V Koleva, D Stoilova Journal of molecular structure 611 (1-3), 1-8, 2002 | 42 | 2002 |
Crystal chemistry of M [PO2 (OH) 2] 2· 2H2O compounds (M= Mg, Mn, Fe, Co, Ni, Zn, Cd): Structural investigation of the Ni, Zn and Cd salts V Koleva, H Effenberger Journal of Solid State Chemistry 180 (3), 956-967, 2007 | 39 | 2007 |
Metal–water interactions and hydrogen bonding in dittmarite-type compounds M′ M ″PO4· H2O (M′= K+, NH4+; M ″= Mn2+, Co2+, Ni2+): correlations of IR spectroscopic and … VG Koleva Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 62 (4-5 …, 2005 | 39 | 2005 |
IR study of solid phases formed in the Mg (HCOO) 2–Cu (HCOO) 2–H2O system D Stoilova, V Koleva Journal of Molecular Structure 553 (1-3), 131-139, 2000 | 38 | 2000 |
Ordered Olivine‐Type Lithium–Cobalt and Lithium–Nickel Phosphates Prepared by a New Precursor Method V Koleva, E Zhecheva, R Stoyanova European Journal of Inorganic Chemistry 2010 (26), 4091-4099, 2010 | 37 | 2010 |
Particle size distribution and electrochemical properties of LiFePO4 prepared by a freeze-drying method E Zhecheva, M Mladenov, P Zlatilova, V Koleva, R Stoyanova Journal of Physics and Chemistry of Solids 71 (5), 848-853, 2010 | 37 | 2010 |
Effect of deposition conditions on the electrochromic properties of nanostructured thin films of ammonium intercalated vanadium pentoxide xerogel M Najdoski, V Koleva, A Samet The Journal of Physical Chemistry C 118 (18), 9636-9646, 2014 | 33 | 2014 |
Facile synthesis of LiMnPO 4 olivines with a plate-like morphology from a dittmarite-type KMnPO 4· H 2 O precursor V Koleva, E Zhecheva, R Stoyanova Dalton Transactions 40 (28), 7385-7394, 2011 | 33 | 2011 |
Formation of Copper–Manganese Oxides from CuxMn1− x (HCOO) 2· 2H2O Mixed Crystals V Koleva, D Stoilova, D Mehandjiev Journal of Solid State Chemistry 133 (2), 416-422, 1997 | 30 | 1997 |
Crystal chemistry of Mg substitution in NaMnPO 4 olivine: concentration limit and cation distribution T Boyadzhieva, V Koleva, R Stoyanova Physical Chemistry Chemical Physics 19 (20), 12730-12739, 2017 | 28 | 2017 |
Chemical bath deposition and characterization of electrochromic thin films of sodium vanadium bronzes M Najdoski, V Koleva, S Demiri Materials Research Bulletin 47 (3), 737-743, 2012 | 28 | 2012 |
Carbon-coated nano-sized LiFe1−xMnxPO4 solid solutions (0 ≤ x ≤ 1) obtained from phosphate–formate precursors M Yoncheva, V Koleva, M Mladenov, M Sendova-Vassileva, ... Journal of materials science 46, 7082-7089, 2011 | 28 | 2011 |
Phosphate ion vibrations in dihydrogen phosphate salts of the type M (H2PO4) 2· 2H2O (M= Mg, Mn, Co, Ni, Zn, Cd): Spectra–structure correlations V Koleva, V Stefov Vibrational Spectroscopy 64, 89-100, 2013 | 27 | 2013 |