MnO2-nanowire@NiO-nanosheet core-shell hybrid nanostructure derived interfacial Effect for promoting catalytic oxidation activity

Controllable synthesis and surface modification of molybdenum oxide nanowires: a short review

“…On the other hand, to overcome the phase transformation and radical volume expansion of MoO x materials during the electrochemical energy storage (charge/discharge) process, NPs were combined with carbon materials including exfoliated graphene oxide (GO) [33], carbon nanospheres [34], carbon [35], expanded graphite [36], reduced graphene oxide (rGO) [37][38][39] and metal oxides [40,41]. The resulting composite materials exhibited outstanding electrochemical performances with a reversible capacity owing to the formation of suitable ion transfer pathways.…”

Effective low‐temperature catalytic abatement of benzene over porous Mn‐Ni composite oxides synthesized via the oxalate route

“…Among all existing techniques, thermal catalytic oxidation has always been considered as one of the most promising as it can convert harmful VOCs into benign compounds (such as CO 2 and H 2 O) effectively . At first, noble metals were used for their high catalytic activity, but their huge costs and ease of becoming coked stimulated researchers to increasingly focus on single or mixed transition metal composite oxides such as manganese oxides (MnO x ), and Mn–cobalt (Mn‐Co) and Mn–nickel (Mn‐Ni) oxides owing to their low cost and good reducibility …”

“…They attributed this to the catalyst structure and synergistic effect of NiMnO 3 and cerium oxide (CeO 2 ) to the higher catalytic activity of the Mn‐Ni mixed oxides . Deng and co‐workers synthesized that the sample MnO 2 ‐nanowire@NiO‐nanosheet exerted better reducibility and more active surface oxygen species, and hence that could removal benzene with high efficiency . Moreover, Huang et al and Tang et al also helped to elucidate the synergistic effects of Mn‐Ni bimetal oxides .…”

“…11 Deng and co-workers synthesized that the sample MnO 2 -nanowire@NiO-nanosheet exerted better reducibility and more active surface oxygen species, and hence that could removal benzene with high efficiency. 8 Moreover, Huang et al and Tang et al also helped to elucidate the synergistic effects of Mn-Ni bimetal oxides. [12][13][14] Notwithstanding this, all of the above-mentioned Mn-Ni catalysts could only removal benzene or toluene efficiently at high temperatures (>300 ∘ C).…”

“…3,4 At first, noble metals were used for their high catalytic activity, 5,6 but their huge costs and ease of becoming coked stimulated researchers to increasingly focus on single or mixed transition metal composite oxides such as manganese oxides (MnO x ), and Mn-cobalt (Mn-Co) and Mn-nickel (Mn-Ni) oxides owing to their low cost and good reducibility. 3,7,8 It is reported that the existence of electron deficiency in the lattice of NiO would result in the formation of active oxygen species (such as O − ), which could transform intermediates with low chemical activity into CO 2 and H 2 O. 9,10 Hence, many researchers have paid attention to the application of Ni combined with other transition metals in eliminating VOCs.…”