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Scientific interests

• Thermoelectric oxide materials: synthesis, structure and thermoelectric characteristics on oxides.
• Perovskites materials based on cobalt: structure and design for
  modelling oxides properties.
• Green methods of synthesis of oxides (soft chemistry).

Selected publications

1. E. Zhecheva R. Stoyanova, L. Vassilev, V. Valchev, M. Khristov, S. Harizanova, „Thermoelectrical oxide material“, Institute of General and Inorganic Chemistry – BAS, current patent 15.05.2018, Sofia, Bulgaria. Patent number issued 66676.
2. S. Harizanova, E. Zhecheva, V. Valchev, M. Khristov, R. Stoyanova,
   „Improving the Thermoelectric Efficiency of Co Based Ceramics“,
   Materials Today: Proceedings 2 (2015) 4256–4261.
3. V. Vulchev, L. Vassilev, S. Harizanova, M. Khristov, E. Zhecheva, R. Stoyanova,
   „Improving of the thermoelectric efficiency of LaCoO₃ by double substitution with nickel and iron“,
   Journal of Physical Chemistry C, 116, 25 (2012) 13507-13515.
4. S. Ivanova, A. Senyshyn, E. Zhecheva, K. Tenchev, R. Stoyanova, H. Fuess,
   „Crystal structure, microstructure and reducibility of LaNi_xCo_1-xO₃ and LaFe_xCo_1-xO₃ perovskites (0“,
   Journal of Solid State Chemistry 183 (2010) 940-950.
5. S. Ivanova, A. Senyshyn, E. Zhecheva, K. Tenchev, V. Nikolov, R. Stoyanova, H. Fuess,
   „Effect of the synthesis route on the microstructure and the reducibility of LaCoO₃“,
   Journal of Alloys and Compaunds 480 (2009) 279–285.