Next Article in Journal
Crystal Structure of the N112A Mutant of the Light-Driven Sodium Pump KR2
Previous Article in Journal
Synthesis and Experimental-Computational Characterization of a Copper/Vanadium Compound with Potential Anticancer Activity
Open AccessArticle

Highly Crystalline TiO2-MoO3 Composite Materials Synthesized via a Template-Assisted Microwave Method for Electrochemical Application

1
Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
2
Faculty of Chemical Technology, Institute of Chemistry and Electrochemistry, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
3
Polish Academy of Sciences, Institute of Molecular Physics, Mariana Smoluchowskiego 17, PL-60179 Poznan, Poland
4
Polish Academy of Sciences, Institute of Low Temperature and Structure Research, Okólna 2, PL-50422 Wroclaw, Poland
5
NanoBioMedical Centre, Adam Mickiewicz University, Poznan, Wszechnicy Piastowskiej 3, PL-61614 Poznan, Poland
6
National Research Institute, Institute of Plant Protection, Węgorka 20, PL-60318 Poznan, Poland
7
Faculty of Chemical Technology and Engineering, Department of Inorganic Chemical Technology and Environment Engineering, West Pomeranian University of Technology in Szczecin, Piastów 42, PL-71065 Szczecin, Poland
8
Faculty of Materials Engineering and Technical Physics, Poznan University of Technology, Piotrowo 3, PL-60965 Poznan, Poland
*
Author to whom correspondence should be addressed.
Crystals 2020, 10(6), 493; https://doi.org/10.3390/cryst10060493
Received: 27 April 2020 / Revised: 27 May 2020 / Accepted: 4 June 2020 / Published: 8 June 2020
(This article belongs to the Section Hybrid and Composite Crystalline Materials)
TiO2-MoO3 composite systems were successfully prepared using a template-assisted microwave method at molar ratios TiO2:MoO3 = 8:2, 5:5 and 2:8. The synthesized material systems were comprehensively characterized, in terms of their crystalline structure (XRD and Raman spectroscopy), morphology (SEM, TEM and HRTEM analysis) and parameters of the porous structure (low-temperature N2 sorption). The materials exhibited highly crystalline phases: anatase and hexagonal molybdenum trioxide. Moreover, TEM analysis revealed hexagonal prism particles of MoO3 and nanocrystalline particles of TiO2. The proposed template-assisted microwave synthesis enabled the incorporation of TiO2 particles on the surface of hexagonal particles of MoO3, which resulted in a stable junction between titania and molybdenum trioxide. The values of BET surface area were 57, 29 and 11 m2/g for samples obtained at molar ratios TiO2:MoO3 = 8:2, 5:5 and 2:8 respectively. In electrochemical applications, titanium dioxide plays a crucial role as an intercalation intensifier, in which MoO3 is responsible for current conduction. Taking account of the potential electrochemical applications, the best system was obtained at the molar ratio TiO2:MoO3 = 5:5. The anode could maintain a capacity of 400 mAh/g at current densities in the range 100–1000 mA/g at potential values ranging from 1.00 to 3.30 V vs. Li/Li+. X-ray photoelectron spectroscopy (XPS) confirmed the effective intercalation of lithium ions into the TiO2-MoO3 composite materials. View Full-Text
Keywords: titanium dioxide; molybdenum trioxide; microwave method; template-assisted synthesis; electrochemical properties titanium dioxide; molybdenum trioxide; microwave method; template-assisted synthesis; electrochemical properties
Show Figures

Figure 1

MDPI and ACS Style

Kubiak, A.; Wojciechowska, W.; Kurc, B.; Pigłowska, M.; Synoradzki, K.; Gabała, E.; Moszyński, D.; Szybowicz, M.; Siwińska-Ciesielczyk, K.; Jesionowski, T. Highly Crystalline TiO2-MoO3 Composite Materials Synthesized via a Template-Assisted Microwave Method for Electrochemical Application. Crystals 2020, 10, 493.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop