Philippines norbornadiene solar energy storage

Is norbornadiene a molecular energy storage system?

Due to its properties, the molecule pair norbornadiene (NBD) and quadricyclane (QC) appears auspicious concerning its feasibility as MOST energy storage system (see Section 1.2). MOST systems can also be considered as molecular photoswitches; 9 in this context, various systems are known in literature (see Scheme 1).

Are molecular solar thermal systems suitable for energy storage?

Molecular Solar Thermal (MOST) systems are interesting candidates for energy storage in one-photon one-molecule processes. The photoinduced conversion of norbornadiene into its strained valence isomer quadricyclane is particularly promising. Challenges concerning the overall efficiency lead to the search for suitable molecule and catalyst design.

Which Norbornadiene is best suited for solar spectrum match?

The most red-shifted absorption was observed for 4 d, with a maximum at 398 nm and an onset at 456 nm. Thus, among the synthesized compounds, 4 d is the norbornadiene that best meets the requirements of solar spectrum match.

What is the absorption onset of unsubstituted norbornadiene 1?

The absorption onset of unsubstituted norbornadiene 1 is 267 nm, but since the intensity of solar radiation below around 300 nm is very low at sea level, norbornadiene is essentially inert to sunlight. To prepare quadricyclane, high-power ultraviolet lamps are employed, typically in the presence of a photosensitizer.

What is a cyano group in a norbornadiene derivative?

Thus, this new series of norbornadiene derivatives is characterized by a cyano group in the 2-position and a variety of aromatic donor groups attached via a −C≡C− linker to the C3 carbon atom. The selected target compounds 4 a – d are depicted in Figure 1.

Can NBD/QC couples be used as energy storage material?

This review specifically focuses on the research regarding the norbornadiene/quadricyclane (NBD/QC) 6e, 18 molecule couple due to its particular advantages as potential energy storage material, and addresses the feasibility of various substituted NBD/QC couples.