Support effect of Rh catalysts on the hydrogenation of m-dinitrobenzene

Structural Identification and Enhanced Catalytic Performance of Alumina-Supported Well-Defined Rh-SnO2 Close-Contact Heteroaggragate Nanostructures

“…The peak at 85 °C is ascribed to the reduction of Rh 3+ species, , while the peak at 209 °C is possibly due to the reduction of Rh 3+ species in the Rh 2 O 3 –SnO 2 interfaces. The interaction between Rh 2 O 3 and SnO 2 reduces Rh 2 O 3 at relatively high temperatures, and a similar phenomenon has been reported in other systems . The H 2 consumption peak at 563 °C is due to the reduction of SnO 2 , , and that at 407 °C is possibly due to the reduction of oxidized Sn species with different chemical states.…”

“…There is only one H 2 consumption peak at 85 °C for Rh 2 O 3 /Al 2 O 3 , while four H 2 consumption peaks at 85, 209, 407, and 563 °C exist for Rh 2 O 3 –SnO 2 /Al 2 O 3 . The peak at 85 °C is ascribed to the reduction of Rh 3+ species, , while the peak at 209 °C is possibly due to the reduction of Rh 3+ species in the Rh 2 O 3 –SnO 2 interfaces. The interaction between Rh 2 O 3 and SnO 2 reduces Rh 2 O 3 at relatively high temperatures, and a similar phenomenon has been reported in other systems .…”

“…The interaction between Rh 2 O 3 and SnO 2 reduces Rh 2 O 3 at relatively high temperatures, and a similar phenomenon has been reported in other systems. 44 The H 2 consumption peak at 563 °C is due to the reduction of SnO 2 , 45,46 and that at 407 °C is possibly due to the reduction of oxidized Sn species with different chemical states.…”

“…Figure 7a 43,44 while the peak at 209 °C is possibly due to the reduction of Rh 3+ species in the Rh 2 O 3 −SnO 2 interfaces. The interaction between Rh 2 O 3 and SnO 2 reduces Rh 2 O 3 at relatively high temperatures, and a similar phenomenon has been reported in other systems.…”

Intersperse copper nanoparticles into 3D fibrous silica-supported carbon spheres for electrocatalytic nitrogen reduction

“…So far, numerous research efforts have been conducted to fabricate the catalysts with different structures and compositions, and a range of e-NRR catalysts have been achieved, involving noble metals [8,9], transition metal-based [10,11] and nonmetallic catalysts [12][13][14]. Although noble metal catalysts that refer to platinum group metal materials, e.g., Ru [15], Pt [16], and Rh [17], have been generally used as electrocatalysts for e-NRR because of their excellent electrical conductivity and active polycrystalline surfaces, their wide range of applications are still seriously hampered by their expensive costs and rare resources [18]. Transition metal-based catalysts are then regarded as potential alternatives because of their easy synthesis, low cost, and excellent catalytic activity [13,19].…”