The catalytic performances of α-MnO2 and δ-MnO2 catalysts synthesized from KMnO4 and ethanol for total oxidation of isopropanol
DOI:
https://doi.org/10.51316/jca.2020.009Abstract
In this study, the catalytic activities of total oxidation of isopropanol (IPA) over MnO2-based catalysts (α-MnO2 and δ-MnO2) were studied and compared. These catalysts were synthesized by an oxidation/reduction route between ethanol and KMnO4 by using dropwise method. Their morphological, structural properties, specific surface area, pore distribution and reducibility were characterized by SEM, XRD, FTIR, N2 isothermal adsorption-desorption, and hydrogen temperature-programmed reduction (H2-TPR). As a result, IPA was significantly oxidized to acetone at low temperature (<130 °C) and subsequently to CO2 at higher temperature. α-MnO2 was demonstrated as a better catalyst for total oxidation of IPA compared with δ-MnO2. Over 205 °C, IPA was completely oxidized to CO2. Additionally, the high reducibility of δ-MnO2 was found to be correlated with higher activity of IPA toward acetone at low temperature.Downloads
References
E. Cetin, M. Odabasi, R. Seyfioglu, Sci. Total Environ. 312 (2003) 103–112. https://doi.org/10.1016/S0048-9697(03)00197-9
K. Tzortzatou, E. Grigoropoulou, J. Environ. Sci. Heal. Part A 45 (2010) 534–541. https://doi.org/10.1080/10934521003595027
X. Tang, P.K. Misztal, W.W. Nazaroff, A.H. Goldstein, Environ. Sci. Technol. 50 (2016) 12686–12694. https://doi.org/10.1021/acs.est.6b04415
Spengler, J. D., Samet, J. M., & McCarthy, J. F. (2001). Indoor air quality handbook (pp. 9-1). New York: McGraw-Hill.
Wallace, L. A. (2001). Assessing human exposure to volatile organic compounds. Indoor Air Quality Handbook. McGraw-Hill.
C. He, J. Cheng, X. Zhang, M. Douthwaite, S. Pattisson, Z. Hao, Chem. Rev. 119 (2019) 4471–4568. https://doi.org/10.1021/acs.chemrev.8b00408
M. Florea, M. Alifanti, V.I. Parvulescu, D. Mihaila-Tarabasanu, L. Diamandescu, M. Feder, C. Negrila, L. Frunza, Catal. Today 141 (2009) 361–366. https://doi.org/10.1016/j.cattod.2019.05.069
V. P. Santos, M. F. R. Pereira, J. J. M. Orfao and J. L. Figueiredo, Appl. Catal., B, 99 (2010) 353-363 https://doi.org/10.1016/j.apcatb.2010.07.007.
J. Wang, J. Li, P. Zhang, G. Zhang, Appl. Catal. B Environ. 224 (2018) 863–870. https://doi.org/10.1016/j.apcatb.2017.11.019
X. Chen, Y.-F. Shen, S.L. Suib, C.. O’Young, J. Catal. 197 (2001) 292–302. https://doi.org/10.1006/jcat.2000.3063
H. Huang, Y. Xu, Q. Feng, D.Y.C. Leung, Catal. Sci. Technol. 5 (2015) 2649–2669. https://doi.org/10.1039/C4CY01733A
N. Lucas, L. Gurrala, S.B. Halligudi, Mol. Catal. 490 (2020) 110966. https://doi.org/10.1016/j.mcat.2020.110966
F. Shi, F. Wang, H. Dai, J. Dai, J. Deng, Y. Liu, G. Bai, K. Ji, C.T. Au, Appl. Catal. A Gen. 433–434 (2012) 206–213. https://doi.org/10.1016/j.apcata.2012.05.016
W. Yang, Z. Su, Z. Xu, W. Yang, Y. Peng, J. Li, Appl. Catal. B Environ. 260 (2020) 118150. https://doi.org/10.1016/j.apcatb.2019.118150
D.A. Kitchaev, S.T. Dacek, W. Sun, G. Ceder, J. Am. Chem. Soc. 139 (2017) 2672–2681. https://doi.org/10.1021/jacs.6b11301
B.-R. Chen, W. Sun, D.A. Kitchaev, J.S. Mangum, V. Thampy, L.M. Garten, D.S. Ginley, B.P. Gorman, K.H. Stone, G. Ceder, M.F. Toney, L.T. Schelhas, Nat. Commun. 9 (2018) 2553. https://doi.org/10.1038/s41467-018-04917-y
