Borowiec, Joanna;
Liang, Weizheng;
Boi, Filippo S;
He, Yi;
Wang, Shan L;
Gillin, William P;
(2020)
Aluminum promoted sulfidation of ammonium perrhenate: Presence of nanobattery in the ReS₂ composite material based memcapacitor.
Chemical Engineering Journal
, 392
, Article 123745. 10.1016/j.cej.2019.123745.
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Abstract
This study demonstrates a new approach to the synthesis of rhenium disulfide (ReS2) in a sulfidation reaction of ammonium perrhenate (NH4ReO4), occurring at room temperature and in water solution. It was found that aluminum (Al) plays a catalytic role in the reaction taking place in low ionic strength solutions. The reaction product is characterized using several analysis techniques, including energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy and thermogravimetric analysis (TGA). Furthermore, an interesting observation of both memristive and memcapacitive effects, existence of nanobattery with an electromotive force estimated to be 0.80 V, in a prototypical device based on the as-synthesized ReS2 composite material is presented. This finding shows promise for the implementation of the ReS2 in the next generation memristor technology.
| Type: | Article |
|---|---|
| Title: | Aluminum promoted sulfidation of ammonium perrhenate: Presence of nanobattery in the ReS₂ composite material based memcapacitor |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.cej.2019.123745 |
| Publisher version: | http://dx.doi.org/10.1016/j.cej.2019.123745 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Rhenium disulfide, Bipolar resistance switching, Memcapacitor, Nanobattery |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10196212 |
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