Recent advances in nanostructured catalysts for photo-assisted dry reforming of methane

A critical review on emerging photocatalysts for syngas generation via CO2 reduction under aqueous media: a sustainable paradigm

“…Rh acts as a photoelectron receiver and usually applied in dry methane reforming reactions. 145 However, their mutual interactive effect over SrTiO 3 exerted noticeable conversion efficiency and high selectivity for syngas production from reduction of the CO 2 -H 2 O mixture under visible-light irradiation. The production rate of CO and H 2 was estimated to be 66.8 mmol g À1 h À1 and 50.5 mmol g À1 h À1 with a CO : H 2 ratio of 1.3 : 1.…”

Extraordinary Catalytic Performance of Nickel Half‐Metal Clusters for Light‐Driven Dry Reforming of Methane

“…[ 1 ] DRM has been regarded as a promising route to tackle excess greenhouse gas emissions as it converts the two greenhouse gases of CO 2 and CH 4 to syngas (H 2 and CO), a key chemical feedstock for large‐scale industrial processes to produce fuels, high‐value‐added chemicals, and clean hydrogen energy. [ 2–26 ] However, there are two major obstacles to this scenario. One is high energy consumption for DRM as it is a highly endothermic reaction (Δ H 298 = 247 kJ mol −1 ), requiring a high reaction temperature (usually above 700 °C).…”

“…Recently, an approach of light‐driven catalytic (photothermocatalytic) CO 2 reduction with CH 4 , [ 2–6,27–46 ] H 2 O, [ 47–52 ] and H 2 [ 53–61 ] using inexhaustible solar energy has been developed. It is very promising as it well integrates the low energy consumption of photocatalysis with the high catalytic efficiency of thermocatalysis.…”

“…Among the photothermocatalytic CO 2 reduction approach, photothermocatalytic DRM is very promising as high production rates of syngas and light‐to‐chemical energy conversion are simultaneously achieved. [ 2–6,27–46 ] Intensive studies have identified metallic Ni‐based catalysts as the most promising candidate for both conventional thermocatalytic and light‐driven catalytic DRM owing to their earth‐abundance, inexpensiveness, and high initial activity comparable to precious metal catalysts. [ 9–14,18–34 ] However, they are vulnerable to deactivation due to severe coking, blocking their widely practical application.…”

“…Another is the lack of durable catalysts due to catalyst deactivation by severe coking, [14,15] which originates from thermodynamically inevitable side-reactions of CH 4 pyrolysis and CO disproportionation. [12,13] Recently, an approach of light-driven catalytic (photothermocatalytic) CO 2 reduction with CH 4 , [2][3][4][5][6][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46] H 2 O, [47][48][49][50][51][52] and H 2 [53][54][55][56][57][58][59][60][61] using inexhaustible solar energy has been developed. It is very promising as it well integrates the low energy consumption of photocatalysis with the high catalytic efficiency of thermocatalysis.…”