A Study of Intermediate for Synthesis of Cs 0.3 WO 3 with Near-Infrared Photothermal Response

Yue Zhang and Ruixing Li ()
Additional contact information
Yue Zhang: School of Materials Science and Engineering, Beihang University, Beijing 100191, China
Ruixing Li: School of Materials Science and Engineering, Beihang University, Beijing 100191, China

Energies, 2022, vol. 15, issue 22, 1-14

Abstract: Nanoscale tungsten bronze can convert near-infrared light into thermal energy. For a chemical synthesis, intermediate products and processes are potentially positive or negative to an end product. In this study, (NH 4 ) 2 SO 4 was added into the hydrothermal system of WO 3 , CsCl, CH 3 CH 2 CHO, and NH 3 ·H 2 O to increase the Cs/W ratio in solution. An intermediate, Cs 1.1 W 1.65 O 5.5 , was isolated. Subsequently, it was confirmed via a kinetics experiment conducted for different times. The results of the NH 3 ·H 2 O and NH 4 COOCH 3 system indicate there are two influence factors that influence the formation of Cs 1.1 W 1.65 O 5.5 : the leaching out of W and imine reactions. A low leaching out rate induces a high Cs/W ratio and low-concentration W in solution, leading to the formation of Cs 1.1 W 1.65 O 5.5 . The imine reaction decreasing CH 3 CH 2 CHO restrains the reduction in Cs 1.1 W 1.65 O 5.5 . The increase in CH 3 CH 2 COO − with the reduction reaction results in both the micron-size sticks and nano-size equiaxial particles in powder.

Keywords: cesium tungsten bronze; intermediate; hydrothermal; synthesis; near-infrared response (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/22/8542/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/22/8542/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:22:p:8542-:d:973288

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().