Characterizations of 12-tungstophosporic acid metal salt nano particles synthesized by ultrasound

Abstract

A set of nano metal exchanged 12-tungtophosphoric acid salt (M =Fe, Cr, Ni, Cu) was synthesized under ultrasonic irradiation in nanoscale. To thoroughly recognize the structure transformation induced by metal doping and morphologies of as-prepared M-TPA catalysts, a combination of XRF, XRD, SEM-EDX, N2 adsorption-BET, were employed. These analyzes indicate that the chemical structure and crystallinity of nano M-TPA's remained unchanged while its morphology was found a different particle size according to the exchange metal.

Keywords

• Nano
• 12-tungstophosporic acid metal salt
• ultrasonic irradiation.

Ultrason yardımı ile sentezlenen 12-tungstofosforik asit metal tuzu nanoparçacıklarının karakterizasyonları

Öz

Bir dizi nano metal değişimli 12-tungtofosforik asit tuzu (M =Fe, Cr, Ni, Cu) ultrasonik ışınlama altında nano ölçekte sentezlenmiştir. M-TPA katalizörlerinin metal dopingi ve morfolojilerinin neden olduğu yapı dönüşümünü tam olarak tanımak için XRF, XRD, SEM-EDX, N2 adsorpsiyon-BET kombinasyonu ile karakterizasyon yapılmıştır. Bu analizler, nano M-TPA'nın kimyasal yapısının ve kristalliğinin değişmeden kaldığını, morfolojisinin metale göre farklı bir partikül boyutu bulunduğunu göstermektedir.

Anahtar Kelimeler

• Nano
• 12-tungstopphosporic asit metal tuzu
• ultrasonik ışınlama.

References

1. Abbasi, A. Morsali (2010), Colloids Surf. A, vol 371 (1-3) pp. 113–118.
2. Cavani F.(1998), Heteropolycompound-based catalysts: A blend of acid and oxidizing properties. Catalysis Today, Vol. 41, Issues 1–3.
3. Gallezot, P. (2007), Catalytic routes from renewables to fine chemicals. Catal. Today, Vol 121, Issues 1–2, pages 76-91.
4. Kong P.S., M.K. Aroua, W.M.A.W. Daud, H.V. Lee, P. Cognet, Y. Pérè s(2016), Catalytic role of solid acid catalysts in glycerol acetylation for the production of bio-additives: a review, RSC Advances, vol. 6 pp. 68885-68905.
5. Misono M. (2000), Heteropolyacids. Versatile green catalysts usable in a variety of reaction media. Pure Appl. Chem, Vol. 72, No. 7, pp 1305–1311.
6. Martos M. J. Morales. L. Sanchez. R. Ayouchi. D. Leinen. F. Martin. J.R. Ramos Barrado(2001). Electrochim. Acta 46 pp. 2939.
7. Okuhara, T. M. Mizuno, M. Misono (1996). Catalytic Chemistry of Heteropoly Compounds. Vol. 41, pp 113-252.
8. Patel C. M., M. Chakraborty, Z.V.P. Murthy(2014), Ultrason. Sonochem. vol 21 pp. 1100–1107.

9. Pinjaria D.V., K. Prasad, P.R. Gogatea, S.T. Mhaskeb, A.B. Pandita(2013), Chem. Eng. Process. vol 74 pp 178– 186.
10. Polshettiwar V. and R. S. Varma(2010), The Royal Society of Chemistry 12 743–754.
11. Silva M.J. da, A.A. Rodrigues(2020), Metal silicotungstate salts as catalysts in furfural oxidation reactions with hydrogen peroxide, Molecular Catalysis, vol 493 111104.
12. Wang H. Liu L.-j, Gong S.-w.(2017), Esterification of oleic acid to biodiesel over a 12-phosphotungstic acid-based solid catalyst, Journal of Fuel Chemistry and Technology, vol 45 pp. 303-310.