Shaislamov Ulugbek Alisherovichning
fan doktori (DSc) dissertatsiyasi himoyasi haqida e’lon
I. Umumiy ma’lumotlar.
Dissertatsiya mavzusi, ixtisoslik shifri (ilmiy daraja beriladigan fan tarmog‘i nomi): “Metall oksidlari asosida nanotuzilishli yarimo‘tkazgichlar olinishi va fotokatalitik xossalari”, 02.00.12. – “Nanokimyo, nanofizika, nanotexnologiya”
02.00.04. – “Fizik kimyo” (fizika – matematika fanlari) ixtisosliklari bo‘yicha.
Dissertatsiya mavzusi ro‘yxatga olingan raqam: B2022.2.DSc/FM192.
Ilmiy maslahatchining F.I.Sh., ilmiy darajasi va unvoni: Ro‘zimuradov Olim Narbekovich, kimyo fanlari doktori, professor.
Dissertatsiya bajarilgan muassasa nomi: Mirzo Ulug‘bek nomidagi O‘zbekiston Milliy universiteti.
IK faoliyat ko‘rsatayotgan muassasa nomi: IK raqami: O‘zbekiston Respublikasi Fanlar akademiyasi Polimerlar kimyosi va fizikasi instituti, DSs.02/30.12.2019.K/FM/T.36.01.
Rasmiy opponentlarning F.I.Sh., ilmiy darajasi va unvoni: Yuldashev Shavkat Uzgenovich fizika – matematika fanlari doktori, professor; Kadirova Zuxra Chingizovna, kimyo fanlari doktori, professor; Shilova Ol`ga Alekseevna, kimyo fanlari doktori, professor.
Yetakchi tashkilot: O‘zR FA Materialshunoslik instituti
Dissertatsiya yo‘nalishi: nazariy va amaliy ahamiyatga molik.
II. Tadqiqotning maqsadi Metal oksidli yarimo‘tkazgich nanotuzilmalarini sintezlash va ularning fizik-kimyoviy va fotokatalitik xossalarini tadqiq etish.
III. Tadqiqotning ilmiy yangiligi.
mis oksidi nanorodlari asosida p-tip o‘tkazuvchanlikga ega yarimo‘tkazgichli fotoelektrodni olishni g‘ovakli templat yordamida elektrokimyoviy cho‘ktirish usuli ishlab chiqilgan;
ilk bora, nanostrukturali n- tipli TiO2/CdS/CdSe fotoanod va p-tipli CuO/ZnO/TiO2 fotokatodlardan tashkil topgan fotoelektrokimyoviy yacheyka tuzildi, yacheyka parametrlari o‘rganildi va tanlangan fotoelektrodlarni bir fotoelektrokimyoviy yacheykada qo‘llash mumkinligi isbotdandi;
mis oksidi nanorodlari asosida p-tip o‘tkazuvchanlikga ega yarimo‘tkazgichli fotoelektrodni fotokorroziyaga bardoshligi ZnO nanorodlaridan tashkil topgan ximoya qatlami evaziga 80 % gacha etkazildi;
CuO/ZnO nanorod va yupqa plyonka asosidagi fotoelektrodlarni fotoelektrokimyoviy xossalari batafsil qiyosiy o‘rganildi va CuO/ZnO nanorodlar asosidagi fotoellektrodning xossalari yupqa plyonkaga nisbatan ustun ekanligi isbotlangan;
CuO/ZnO nanorodlari asosidagi fotoelektrodlarda qo‘llanilgan ZnO nanorod ximoya qatlamining qalinligini fotoelektrodning fotokorroziya bardoshligiga va elektrokimyoviy xossalariga bog‘liq ekanligi isbotlangan;
Ilk bora, gal`vanik-potensial ishtirokidagi gidrotermal usulni dispers nanozarrali sistemaga qo‘llagan xolda Ag/ZnO metal-yarimo‘tkazgich nanostrukturalari sintezlandi. Olingan nanostrukturalarni fotokatalitik xossalari metilen-ko‘k model` bo‘yog‘ini fotodekompozisiyalashda tekshirildi va metal-yarimo‘tkazgich tuzilmani afzallik jixatlari o‘rganilgan.
IV. Tadqiqot natijalarining joriy qilinishi:
Metal oksidli yarimo‘tkazgich nanostrukturalarni sintezlash va ularning morfologik, mikrostrukturaviy va fotokatalitik xossalarini natijalari quyidagi 233 ta yuqori impakt faktorli (IF) xorijiy ilmiy jurnallarda foydalanilgan: Advanced materials, 2021 - Wiley Online Library IF=30.849, ChemSusChem, 2017 Wiley Online Library IF=8.928, Solar Energy, 2016 – Elsevier IF=5.742, ACS Applied Energy materials, 2019 - ACS Publications IF=6.024, Nanoscale, 2020 - RSC publications IF=7.790, Applied materials & interfaces, 2019 - ACS Publications IF= 9.229, Dalton transactions, 2021 – RSC publications IF= 4.390, Journal of Alloys and Compounds, Elsevier, IF= 5.316, Sensors and Actuators B: Chemical, Elsevier IF= 7.460, International Journal of Hydrogen Energy, Elsevier IF=5.816, Applied Catalysis B: Environmental, Elsevier, IF=19.503, Renewable energy, Elsevier IF=8.001. Natijada turli metal oksidli yarimo‘tkazgichlarni fotokatalitik va fotoelektrokimyoviy xossalarini taxlil qilish imkonini bergan.
Tadqiqot doirasida chop etilgan ayrim maqolalarga berilgan iqtiboslar quyida keltirib o‘tilgan.
Ulugbek Shaislamov, Amir Abidov, Bunyod Allabergenov, Sungjin Kim, Karthikeyan Krishnamoorthy, Sang Jae Kim, Sooseok Choi, Rai Suresh, Waqar Muhammad Ahmed and Heon-Ju Lee, “Highly stable hierarchical p-CuO/ZnO nanorod/nanobranch photoelectrode for efficient solar energy conversion”, Inr. J. Hydrogen Energy, 4 (2016) (IF 5.816
Maqolaga 60 martta iqtibos, shulardan:
R.S. Moakhar, Advanced materials Vol.33, Issue 33, August 19, 2021, 2007285 (IF 30.8)
- Supriya Pulipaka, J. Catalysis, Vol. 387, July 2020, Pages 17-27 (IF 7.9)
- Jonathan Kampmann, Nanoscale, 2020, 12, 7766-7775 (IF-7.79)
- Naoto Ichikawa, Inter. J. Hydr. Ener. Vol. 42, 36, 7 2017, 22698-22703 (IF 5.8)
- S.Kumar, ACS Appl. Energy Mater. 2019, 2, 8, 5622–5634 (IF6)
- Arnab Dhara, Solar Energy, Vol. 136, 15Oct. 2016, Pages 327-332 (IF5.7)
- Xin Zeng, , Artificial Photosynthesis for Sustainable Fuels Volume10, Issue22, 2017 Pages 4324-4341 (IF 8.9)
1. Ulugbek Shaislamov and Beelyong Yang, “CdS-sensitized single-crystalline TiO2 nanorods and polycrystalline nanotubes for solar hydrogen generation”, J. Mater. Res., 27 (2013) (IF 3.089)
Maqolaga 28 martta iqtibos, shulardan:
- Derek R.Miller, Sensors and Actuators B: Chemical Vol. 204, 1 December 2014, Pages 250-272 (IF7.4)
- Zhengcao Li, Scientific Reports Vol. 6,19754 (2016) (IF4.3)
- Shuang Shuang Journal of Colloid and Interface Science Vol. 494, 15 May 2017, Pages 107-113 (IF8.1)
- Bub He Nam Nano Convergence Vol. 6, 40 (2019) (IF8.5)
2. Ulugbek Shaislamov and Beelyong Yang, “Single crystalline TiO2 nanorods with enhanced visible light activity for solar hydrogen generation”, Inr. J. Hydrogen Energy, 38 (2013) (IF5.816)
Maqolaga 26 martta iqtibos, shulardan:
- Ji WonYoon, Applied Catalysis B: Environmental, Vol. 244, 5 May 2019, Pages 511-518 (IF 19.5)
- Chao-Wei Huang, Inr. J. Hydrogen Energy, Vol. 45, Issue 36, 17 July 2020, Pages 18144-18159 (IF 19.5)
- M.S.Raghu, Nano-Structures & Nano-Objects, Vol. 25, February 2021, 100667
- Dan Zhao, Renewable and Sustainable Energy Reviews, Volume 54, February 2016, Pages 1048-1059 (IF14.9)
- Vivek Ramakrishnan, RSC Adv., 2016, 6, 9789-9795 (IF3.36)
3. Ulugbek Shaislamov, Heon-Ju Lee, “Facile Synthesis of Ag/ZnO Metal-Semiconductor Hierarchical Photocatalyst Nanostructures via Galvanic-Potential-Enhanced Hydrothermal Method”, CrystEngComm, (2018) (IF 3.545)
Maqolaga 9 martta iqtibos, shulardan:
- Gongduan Fan Applied Catalysis B: Environmental, Volume 256, 5 November 2019, 117866 (IF19.5)
- Qiqi Zhang, Inr. J. Hydrogen Energy, Vol.45, 24, 5 May 2020, Pages 13340-13352 (IF5.8)
- Niri Wu, Photochem Photobiol Sci 19, Volume35, Issue 3, 1042–1053 (2020) (IF3.9)
- Lu Wang, RSC Adv., 2020, 10, 22432-22439 (IF3.36)
4. U. Shaislamov, H Kim, JM Yang, BL Yang, “CuO/ZnO/TiO2 photocathodes for a self-sustaining photocell: Efficient solar energy conversion without external bias and under visible light” International Journal of Hydrogen Energy, 45 (11), 6148-6158 (2020) (IF 5.816)
Maqolaga 6 martta iqtibos, shulardan:
- Reyhaneh Nekooiea J. Photochemistry and Photobiology A: Chemistry (IF4.29)
- Qing Zhang Inr. J. Hydrogen Energy, 4 (2016) (IF5.816)
- Rahman, S., J Mater Sci: Mater Electron 33, 5105–5126 (2022). (IF 2.47)
