Au/γ-MnO2 catalyst for solvent-free toluene oxidation with oxygen

Research on adsorptive desulfurization of H2S from natural gas over MnxOy-CoxOy supported on activated carbon

“…The peaks at 2θ = 37.4° (311), 41.9° (400), 56° (422), 60.1° (511), and 65.2° (440) could be assigned to cubic phase Co 3 O 4 (JCPDS Card No. 42-1467) (Jiang et al., 2013; Li et al., 1999). The peak at 2θ = 37.5° could be attributed to birnessite Mn 3 Co 2 O 8 , showing the interaction between Mn and Co.…”

“…The peaks at 2 ¼ 37.4 (311), 41.9 (400), 56 (422), 60.1 (511), and 65.2 (440) could be assigned to cubic phase Co 3 O 4 (JCPDS Card No. 42-1467) (Jiang et al, 2013;Li et al, 1999 FTIR results. Figure 3 shows the FTIR spectra of the AC, Mn x O y /AC, Co x O y /AC, and Mn x O y -Co x O y /AC adsorbents.…”

MnO2‐Based Materials for Environmental Applications

“…Among many catalysts, MnO 2 ‐based materials have been extensively studied in the catalyst degradation of VOCs due to their natural abundance, environmentally friendliness, low cost, and specific chemical/physical properties, including different crystal structures and suitable redox activity. Currently, the reported types of VOCs degraded by MnO 2 ‐based materials include benzene series (such as toluene, [ 166,217,226,430–438 ] benzene, [ 171,173,439–441 ] ethylbenzene, [ 442–444 ] and o ‐xylene [ 297,445–448 ] ), formaldehyde, [ 54,86,116,123,137,155,156,296,449–455 ] propane, [ 456 ] aerobic sulfide, [ 172 ] methyl mercaptan, [ 299,457 ] acetone, [ 458,459 ] etc. Among them, formaldehyde and benzene series are the most common VOC pollutants in the air that have been studied the most ( Table 3 ).…”

Oxidation of hydrogels based of sodium alginate and MnO2 as catalyst

“…Oxidation of alcohol by stoichiometric amounts in the previous century was more with chromate and permanganate [11]. But now new methods include the amount of metal catalysts in combination with oxidants such as manganese oxide, replaced by hydrogen peroxide, the previous century [12].…”