Olivia L Rose1, Anca Bonciu2,3,4, Valentina Marascu2,5, Andreea Matei2, Qian Liu1, Laurentiu Rusen2, Valentina Dinca2,4, Cerasela Zoica Dinu1. 1. Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, WV 26506, USA. 2. National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele, Romania. 3. Faculty of Physics, University of Bucharest, RO-077125 Magurele, Romania. 4. IN2-FOTOPLASMAT Center, RO-077125 Magurele, Romania. 5. Université Paris-Saclay, CEA, INRAE, DMTS, SCBM, F-91191 Gif-sur-Yvette, France.
Abstract
Properties such as large surface area, high pore volume, high chemical and thermal stability, and structural flexibility render zeolitic imidazolate frameworks (ZIFs) well-suited materials for gas separation, chemical sensors, and optical and electrical devices. For such applications, film processing is a prerequisite. Herein, matrix-assisted pulsed laser evaporation (MAPLE) was successfully used as a single-step deposition process to fabricate ZIF-8 films. By correlating laser fluency and controlling the specific transfer of lab-synthesized ZIF-8, films with user-controlled physical and chemical properties were obtained. Films' characteristics were evaluated by scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The analysis showed that frameworks of ZIF-8 can be deposited successfully and controllably to yield polycrystalline films. The deposited films maintained the integrity of the individual ZIF-8 framework, while undergoing minor crystalline and surface chemistry changes. No significant changes in particle size were observed. Our study demonstrated control over both the MAPLE deposition conditions and the outcome, as well as the suitability of the listed deposition method to create composite architectures that could potentially be used in applications ranging from selective membranes to gas sensors.
Properties such as large surface area, high pore volume, high chemical and thermal stability, and structural flexibility render zeolitic imidazolate frameworks (ZIFs) well-suited materials for gas separation, chemical sensors, and optical and electrical devices. For such applications, film procesn class="Chemical">sing is a prerequisite. Herein, matrix-assisted pulsed laser evaporation (MAPLE) was successfully used as a single-step deposition process to fabricate ZIF-8 films. By correlating laser fluency and controlling the specific transfer of lab-synthesized ZIF-8, films with user-controlled physical and chemical properties were obtained. Films' characteristics were evaluated by scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The analysis showed that frameworks of ZIF-8 can be deposited successfully and controllably to yield polycrystalline films. The deposited films maintained the integrity of the individual ZIF-8 framework, while undergoing minor crystalline and surface chemistry changes. No significant changes in particle size were observed. Our study demonstrated control over both the MAPLE deposition conditions and the outcome, as well as the suitability of the listed deposition method to create composite architectures that could potentially be used in applications ranging from selective membranes to gas sensors.
Authors: Osama Shekhah; Hui Wang; Stefan Kowarik; Frank Schreiber; Michael Paulus; Metin Tolan; Christian Sternemann; Florian Evers; Denise Zacher; Roland A Fischer; Christof Wöll Journal: J Am Chem Soc Date: 2007-11-17 Impact factor: 15.419
Authors: Anh Phan; Christian J Doonan; Fernando J Uribe-Romo; Carolyn B Knobler; Michael O'Keeffe; Omar M Yaghi Journal: Acc Chem Res Date: 2010-01-19 Impact factor: 22.384