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Materials Data on Mo3P by Materials Project

Mo3P crystallizes in the tetragonal I-42m space group. The structure is three-dimensional. there are three inequivalent Mo sites. In the first Mo site, Mo is bonded in a 3-coordinate geometry to twelve Mo and two equivalent P atoms. There are a spread of Mo–Mo bond distances ranging from 2.58–3.16 Å. Both Mo–P bond lengths are 2.52 Å. In the second Mo site, Mo is bonded in a 4-coordinate geometry to two equivalent Mo and four equivalent P atoms. All Mo–P bond lengths are 2.50 Å. In the third Mo site, Mo is bonded in a 2-coordinate geometry to five equivalent Mo and two equivalent P atoms. Both Mo–P bond lengths are 2.45 Å. P is bonded in a 8-coordinate geometry to eight Mo atoms.

36 MATERIALS SCIENCE↗

Tri-molybdenum phosphide (Mo 3 P) and multi-walled carbon nanotube junctions for volatile organic compounds (VOCs) detection

Detection and analysis of volatile organic compounds' (VOCs) biomarkers lead to improvement in healthcare diagnosis and other applications such as chemical threat detection and food quality control. Here, we report on tri-molybdenum phosphide (Mo3P) and multiwalled carbon nanotube (MWCNT) junction-based vapor quantum resistive sensors (vQRSs), which exhibit more than one order of magnitude higher sensitivity and superior selectivity for biomarkers in comparison to pristine MWCNT junctions based vQRSs. Transmission electron microscope/scanning tunneling electron microscope with energy dispersive x-ray spectroscopy, x-ray diffraction, and x-ray photoelectron spectroscopy studies reveal the crystallinity and the presence of Mo and P elements in the network. The presence of Mo3P clearly enhanced the performance of vQRS as evidenced in sensitivity and selectivity studies. The vQRSs are stable over extended periods of time and are reproducible, making them a potential candidate for sensing related applications.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗