Selectivity control towards CO versus H₂ for photo-driven CO₂ reduction with a novel Co(II) catalyst

• Lisa-Lou Gracia,
• Philip Henkel,
• Olaf Fuhr and
• Claudia Bizzarri

Beilstein J. Org. Chem. 2023, 19, 1766–1775, doi:10.3762/bjoc.19.129

• ) complex; earth-abundant; hexafluoropropanol; photocatalytic CO2 reduction; Introduction Solar energy conversion into chemical energy addresses the issues of energy shortage with the exploitation of renewable sources [1]. Photoinduced CO2 reduction is included in the vast research field of artificial

• solvents and with water, it has been used in a large variety of (electro)chemical reactions [53]. The hydroxy group of this alcohol has a pKa of 9.3 [54][55], so we can expect that it is a suitable proton donor for this kind of reaction. We performed the photocatalytic CO2 reduction by dissolving in 5 mL 1

• . calcd for C38H28CoN10S2·CH3OH: C, 60.07; N, 17.96; H, 4.11; S, 8.22; found: C, 60.05; N, 17.84; H, 3.66; S, 8.18. Photocatalytic CO2 reduction Typically, the tests were performed in glass vials (20 mL) equipped with a screw-cap septum. The solutions were prepared under air and CO2 (or argon) was bubbled

Heterogeneous photocatalysis in flow chemical reactors

• Christopher G. Thomson,
• Ai-Lan Lee and
• Filipe Vilela

Beilstein J. Org. Chem. 2020, 16, 1495–1549, doi:10.3762/bjoc.16.125

• synthetically controlled to improve the photocatalytic CO2 reduction performance by Zhang and co-workers using plasma treatment [87]. The general process of photocatalysis in metal oxide semiconductors is illustrated in Figure 4 and is as follows: the photoexcitation of an electron across the band gap generates

Bioinspired cobalt cubanes with tunable redox potentials for photocatalytic water oxidation and CO₂ reduction

• Zhishan Luo,
• Yidong Hou,
• Jinshui Zhang,
• Sibo Wang and
• Xinchen Wang

Beilstein J. Org. Chem. 2018, 14, 2331–2339, doi:10.3762/bjoc.14.208

• test for CO2 reduction system [70]: The photocatalytic test was performed in a Schlenk flask (80 mL) under an atmospheric pressure of CO2. In the Schlenk flask, the photocatalytic CO2 reduction reaction was carried out by dispersing Ru(bpy)32+ (7.8 mg) in MeCN (4 mL) containing triethanolamine (TEOA, 1

Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex

• Kazuhiko Maeda,
• Daehyeon An,
• Ryo Kuriki,
• Daling Lu and
• Osamu Ishitani

Beilstein J. Org. Chem. 2018, 14, 1806–1812, doi:10.3762/bjoc.14.153

• -loaded g-C3N4. The synthesis temperature of g-C3N4 was 873 K in this case. Synthesis of g-C3N4 by thermal heating of urea and application to photocatalytic CO2 reduction with a mononuclear Ru(II) complex (RuP). Results of elemental analysis and specific surface area measurements. Photocatalytic

• emerging material as an organic semiconductor photocatalyst active for various kinds of reactions such as water splitting, CO2 reduction, and degradation of harmful organic compounds, because of its non-toxic, stable, and earth-abundant nature [2][3][4][5][6][7]. Our group has developed photocatalytic CO2

• reduction systems using g-C3N4-based materials, in combination with functional metal complexes [8][9][10][11][12][13][14][15][16]. For example, mesoporous g-C3N4 (mpg-C3N4) modified with a mononuclear Ru(II) complex, such as trans-(Cl)-Ru{(PO3H2)2bpy(CO)2Cl2} (bpy: 2,2’-bipyridine), abbreviated as RuP, is