High-pressure, high-temperature synthesis of nanostructured polydiphenylbutadiyne confined in the 1-dimensional pores of single crystal AlPO4-54

Year: 2022

Authors: Fabbiani M., Romi S., Alabarse F., Celeste A., Capitani F., Borondics F., Sandt C., Contreras S., Konczewicz L., Rouquette J., Santoro M., Haines J.

Autors Affiliation: Univ Montpellier, CNRS, ICGM, F-34293 Montpellier, France; LENS, European Lab Non Linear Spect, I-50019 Sesto Fiorentino, Italy; Elettra Sincrotrone Trieste, I-34149 Trieste, Italy; Synchrotron SOLEIL, St Aubin BP48, F-91192 Gif sur Yvette, France; Univ Montpellier, CNRS, Lab Charles Coulomb, F-34095 Montpellier, France; Inst High Pressure Phys, Warsaw, Poland; INO CNR, Ist Nazl Ott, I-50019 Sesto Fiorentino, Italy.

Abstract: The pi-conjugated polymer polydiphenylbutadiyne was prepared at the nanoscale confined inside the 1.2 nm 1-D pores of the aluminophosphate AlPO4-54. Molten 1,4-diphenyl-1,3-dibutadiyne (DPB) was inserted in the pores of AlPO4-54 at pressures below 0.3 GPa as confirmed by X-ray diffraction. Heating to 190 degrees C under a pressure of 0.4 GPa induced polymerization of DPB in the pores. Infrared microscopy indicates full polymerization in the pores and the presence of characteristic saturated C-H defects common to other nanostructured PDPB materials exhibiting important photocatalytic properties. This nanostructured PDPB confined in the hygroscopic AlPO4-54 host could be of interest for applications in gas sensing, photocatalysis and hydrogen generation.

Journal/Review: CRYSTENGCOMM

Volume: 24 (40)      Pages from: 7109  to: 7117

More Information: The synchrotron X-ray diffraction experiments were performed at the Xpress beamline from Elettra Sincrotrone Trieste (proposal number: 20205095). The synchrotron infrared experiments were performed at the SMIS beamline from Synchrotron SOLEIL (proposal number: 20191393). MS acknowledges the Fondazione Cassa di Risparmio di Firenze supporting his research at the INO-CNR through the SALUS grant.
KeyWords: Polymerization; Amorphization; Calibration; Gauge
DOI: 10.1039/d2ce00938b

Connecting to view paper tab on IsiWeb: Click here