Application of defective TiO2 inverse opal in photocatalytic non-oxidative CH4 coupling

Photocatalytic non-oxidative conversion of methane

“…The research teams led by Zhang Jinlong and Wang Lingzhi have conducted a series of works in this field. [23][24][25][26][27] In 2022, they achieved a methane conversion rate of 4.10 mmol g À1 h À1 by using a Mo-oxide-modified SAPO-34 zeolite. 23 They also developed a mesoporous TiO 2 -SiO 2 catalyst doped with gallium and deposited with platinum (Fig.…”

Low-concentration methane removal: what can we learn from high-concentration methane conversion?

“…So far, many catalytic materials such as zeolite, 54–57 semiconductor, 58–60 and noble metal-modified photocatalysts 61–64 have been successfully applied to photocatalytic NOCM. Lang et al reported that the photocatalytic yield and selectivity of NOCM and C 2 H 6 on Au/TiO 2 were 81.7 μmol g −1 h −1 and 95%, respectively (Fig.…”

“…Furthermore, NCOM reaction is an important method for H 2 production. NOCM is a thermodynamic uphill reaction, so achieving the selective conversion of CH 4 to a mixture of multi-carbon So far, many catalytic materials such as zeolite, 54-57 semiconductor, [58][59][60] and noble metal-modified photocatalysts [61][62][63][64] have been successfully applied to photocatalytic NOCM. Lang et al reported that the photocatalytic yield and selectivity of NOCM and C 2 H 6 on Au/ TiO 2 were 81.7 μmol g −1 h −1 and 95%, respectively (Fig.…”

“…Compared with microwave and plasma strategies, photocatalytic technology is easier to break the C-H bond of CH4 and achieve CH4 conversion at low temperatures. So far, many catalytic materials such as zeolite, [54][55][56][57] semiconductor, [58][59][60] and noble metal-modified photocatalysts [61][62][63][64] have been successfully applied to photocatalytic NOCM. Lang et al reported that the photocatalytic yield and selectivity of NOCM and C2H6 on Au/TiO2 were 81.7 μmol•g -1 •h -1 and 95%, respectively (Figure 10b).…”