The effect of pH and annealing temperature on TeMo5O16 ternary compound: investigation of structural and optical properties

  • A. Shirpay
  • M. M. Bagheri MohagheghiEmail author
Original Paper: Sol-gel, hybrids and solution chemistries


In this paper, the TeMo5O16 ternary and MoO3-TeO2 binary compounds were prepared by using the solid-state reaction method and with MoO3-TeO2 oxide precursor solutions. The effect of pH and annealing temperature on the structure especially formation of TeMo5O16 ternary phase and optical properties of nanoparticles have been investigated. Ammonia (NH3) and nitric acid were used to adjust low and high pH, respectively. Synthesis and the formation of TeMo5O16 ternary compound were carried out at two processes: (A) chemical reduction with NaBH4 under nitrogen atmosphere and (B) annealing at temperatures T = 350 °C and 400 °C in air. These two temperatures were chosen because of the proximity to Te’s melting point. The results of X-ray diffraction showed that with increasing the annealing temperature, the MoO3-TeO2 binary composition is increased and an additional Te2O5 phase is observed. Also, with decreasing pH, the TeMo5O16 ternary phase is increased. The field emission scanning electron microscope (FE-SEM) images showed that the morphology of the nanoparticles is sphere-like, polyhedral forms, which indicates the presence of particles in different phases. The UV–Vis spectroscopy results showed that the energy gap of nanoparticles is varied in the range of 2.83–2.94 eV. The bonding structure of nano-particle was also studied by FT-IR spectroscopy.

The XRD pattern of synthesized samples in different pH at annealing temperature T = 400 °C: (a)- pH = 2, (b) pH = 5, (c) pH = 8 and (d) pH = 10.

FE-SEM images of the synthesized samples in different pH at annealing temperature of T=350°C: pH = 8


  • The TeMo5O16 ternary and MoO3-TeO2 binary compounds were prepared by solid-state reaction method.

  • Effect of pH and annealing temperature on TeMo5O16 ternary phase formation has been investigated.

  • Synthesis and the formation of TeMo5O16 ternary compound were carried out at two processes.

  • With increasing the annealing temperature, the MoO3-TeO2 binary composition is increased.

  • With decreasing pH, the TeMo5O16 ternary phase is increased.


TeMo5O16 Binary compounds MoO3-TeO2 Chemical reduction Compounds 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


  1. 1.
    Muhammad Y, Mahmood A, Wang Y, Chen Y, Ma Z, Han RPS (2016) Advancement in layered transition metal dichalcogenide composites for lithium and sodium ion batteries. J Elec Eng 4:58–74Google Scholar
  2. 2.
    Qiao J, Chen W, Wang W, Wang Z, Sun W, Zhang J, Sun K (2016) The Ca element effect on the enhancement performance of Sr2Fe1.5Mo0.5O6-δ perovskite as cathode for intermediate-temperature solid oxide fuel cells. J Power Sources 331:400–407CrossRefGoogle Scholar
  3. 3.
    Molin S, Jasinski P, Mikkelsen L, Zhang W, Chen M, Hendriksen PV (2016) Low temperature processed MnCo2O4 and MnCo1.8Fe0.2O4 as effective protective coatings for solid oxide fuel cell interconnects at 750 °C. J Power Sources 336:408–418CrossRefGoogle Scholar
  4. 4.
    Cho JS, Ju HS, Lee J-K, Kang YC (2017) Carbon/two-dimensional MoTe2 core/shell-structured microspheres as anode material for Na-ion batteries. Nanoscale 9:1942–1950. CrossRefGoogle Scholar
  5. 5.
    Holmes SM, Balakrishnan P, Kalangi VS, Zhang X, Lozada-Hidalgo M, Ajayan PM, Nair RR (2016) 2D crystals significantly enhance the performance of a working fuel cell. Adv. Energy Mater 7(5):1–7. Google Scholar
  6. 6.
    Zhou Y, Jia L, Feng Q, Wang T, Li X, Wang C (2017) MoTe2 nanodendrites based on Mo doped reduced graphene oxide/polyimide composite film for electrocatalytic hydrogen evolution in neutral solution. Electrochim Acta 229:121–128CrossRefGoogle Scholar
  7. 7.
    Wongkrua P, Thongtem T, Thongtem S (2013) Synthesis of h- and α-MoO3 by refluxing and calcination combination: Phase and morphology transformation, photocatalysis, and photosensitization. J Nanomater
  8. 8.
    Maia L, Yanga F, Zhaoa Y, Xua X, Xua L, Hua B, Luoa Y, Liu H (2011) Molybdenum oxide nanowires: synthesis & properties. Materials today 14:7–8Google Scholar
  9. 9.
    Li Y, Fan W, Sun H, Cheng X, Li P, Zhao X (2010) Structural, electronic, and optical properties of α, β, and γ-TeO2. J Appl Phys 107:093506CrossRefGoogle Scholar
  10. 10.
    Zhang X, Zhang Y, Chen H, Guo L (2014) Effect of pH on rheology of aqueous Al2O3/SiC colloidal system. J Adv Ceram 3(2):125–131CrossRefGoogle Scholar
  11. 11.
    Gomes Jr. JL, Piazzetta RLS, Gonçalves A, Somer A, Cruz GKd, Serbena FC, Novatskia A (2015) Correlation between nonbridging oxygens and the thermal and optical properties of the TeO2–Li2O–MoO3 glassy system. J Mater Res 30:16CrossRefGoogle Scholar
  12. 12.
    Pal M, Hirota K, Tsujigami Y, Sakata H (2001) Structural and electrical properties of MoO3–TeO2 glasses. J Phys D: Appl Phys 34:459–464CrossRefGoogle Scholar
  13. 13.
    Gedikoğlu N, Ersundu AE, Aydin S, Çelikbilek Ersundu M (2018) Crystallization behavior of WO3-MoO3-TeO2 glasses. J Non-Cryst Solids 501:93–100CrossRefGoogle Scholar
  14. 14.
    Moiseev AN et al. (2011) Production and properties of high purity TeO2-ZnO-Na2OBi2O3 and TeO2-WO3-La2O3-MoO3. J Opt Mater 33:1858–1861CrossRefGoogle Scholar
  15. 15.
    Ersundu AE, Büyükyıldız M, Çelikbilek Ersundu M, Şakar E, Kurudirek M (2017) The heavy metal oxide glasses within the WO3-MoO3-TeO2 system to investigate the shielding properties of radiation applications. Prog Nucl Energy,
  16. 16.
    Mekki A, Khattak GD, Wenger LE (2005) Structural and magnetic properties of MoO3–TeO2 glasses. J Non-Cryst Solids 351:2493–2500CrossRefGoogle Scholar
  17. 17.
    Siritanon T, Sleight AW, Subramanian MA (2011) Compositionally controlled metal–insulator transition in Tl2_xInxTeO6. J Solid State Chem 184:877–880CrossRefGoogle Scholar
  18. 18.
    Shemirani B, Koffyberg FP (1992) Semiconductivity and band gap of tin-doped indium tellurate. Mat Res Bull 27:693–698CrossRefGoogle Scholar
  19. 19.
    Shannon RD, Gillson JL, Bouchard RJ (1977) Single crystal synthesis and electrical properties of CdSnO3, Cd2SnO4, In2TeO6 and Cdln2O4. J Phys Chem Solids 38(8):877–881CrossRefGoogle Scholar
  20. 20.
    Qiu HH, Kudo M, Sakata H (1997) Synthesis and electrical properties of Fe2O3-MoO3-TeO2 glasses. Mater Chem Phys 51(3):233–238CrossRefGoogle Scholar
  21. 21.
    Oliva JM, Ordejo´n P, Canadell E (2000) Electronic structure of monoclinic TeMo5O16: Prediction of semiconducting behavior. Phys Rev B 62(24):16430–16434CrossRefGoogle Scholar
  22. 22.
    He Y, Wu Y, Weng W, Wan H (2011) Synergetic effect of TeMo5O16 and MoO3 phases in MoTeOx catalysts used for the partial oxidation of propylene. J Natural Gas Chem 20:249–255CrossRefGoogle Scholar
  23. 23.
    Qi L, Pol VG, Wei Y, Gedanken A (2003) A two-step process for the synthesis of MoTe2 nanotubes: combining a sonochemical technique with heat treatment. J Mater Chem 13:2985–2988CrossRefGoogle Scholar
  24. 24.
    Qi L, Wei Y, Pol VG, Gedanken A (2004) Synthesis of α-MoTe2 nanorods via annealing te-seeded amorphous MoTe2 particles. Inorg Chem 43:6061–6066CrossRefGoogle Scholar
  25. 25.
    Sun Y, Wang Y, Sun D, Carvalho BR, Read CG, Lee C-h, Lin Z, Fujisawa K, Robinson JA, Crespi VH, Terrones M, Schaak RE (2016) Low-temperature solution synthesis of few-layer 1T’-MoTe2 nanostructures exhibiting lattice compression. Angew Chem Int Ed 55:2830–2834CrossRefGoogle Scholar
  26. 26.
    Chen K, Chen Z, Wan X, Zheng Z, Xie F, Chen W, Gui X, Chen H, Xie W, Xu J (2017) A simple method for synthesis of high-quality millimeter-scale 1T′ transition-metal telluride and near-field nanooptical properties. Adv Mater 29:1700704CrossRefGoogle Scholar
  27. 27.
    Zhou J, Liu F, Lin J, Huang X, Xia J, Zhang B, Zeng Q, Wang H, Zhu C, Niu L, Wang X, Fu W, Yu P, Chang TR, Hsu CH, Wu D, Jeng HT, Huang Y, Lin H, Shen Z, Yang C, Lu L, Suenaga K, Zhou W, Pantelides ST, Liu G, Liu Z (2017) Large-area and high-quality 2D transition metal telluride. Adv. Mater. 29:1603471CrossRefGoogle Scholar
  28. 28.
    Shomalian K, Bagheri-Mohagheghi M-M, Ardyanian M (2017) Characterization and study of reduction and sulfurization processing in phase transition from molybdenum oxide (MoO2) to molybdenum disulfide (MoS2) chalcogenide semiconductor nanoparticles prepared by one-stage chemical reduction method. Appl Phys A 123:93CrossRefGoogle Scholar
  29. 29.
    Al-Ani SKJ, Al-Rawi SS, Jassim AH, Al-Hilli HA (2006) FTIR spectra of molybdenum tellurite glasses. Iraqi J of Appl Phys 2(1-2):23–25Google Scholar
  30. 30.
    Oo HM, Mohamed-Kamari H, Wan-Yusoff WMD (2012) Optical properties of bismuth tellurite based glass. Int J Mol Sci 13:4623–4631. CrossRefGoogle Scholar
  31. 31.
    Silverstein RM, Webster FX, Kiemle DJ (2005) Spectrometric identification of organic compounds. 7th edn. John Wiley and Sons, New York.Google Scholar
  32. 32.
    Fares H, Jlassi I, Elhouichet H, Férid M (2014) Investigations of thermal, structural and optical properties of tellurite glass withWO3 adding. J Non-Cryst Solids 396–397:1–7CrossRefGoogle Scholar
  33. 33.
    Kharade RR, Mali SS, Mohite SS, Kondalkar VV, Patil PS, Bhosale PN (2014) Hybrid physicochemical synthesis and electrochromic performance of WO3/MoO3 thin films. Electroanalysis 26:2388–2397CrossRefGoogle Scholar
  34. 34.
    Upender G, Sameera Devi Ch, Chandra Mouli V (2012) Role of WO3 on DC conductivity and some optical properties of TeO2 based glasses. Mater Res Bull 47:3764–3769CrossRefGoogle Scholar

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of PhysicsDamghan UniversityDamghanIran

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