The post plasma-catalytic decomposition of toluene over K-modified OMS-2 catalysts at ambient temperature: Effect of K+ loading amount and reaction mechanism

Promoting volatile organic compounds removal by a magnetically assisted nanosecond pulsed gear‐cylinder dielectric barrier discharge

“…The rotational temperature ( T rot ) and vibrational temperature ( T vib ) of the plasma were determined via comparing the simulated and experimental spectra of N 2 (C 3 П u → B 3 П g ) by SPECAIR software. [ 29 ]…”

“…The rotational temperature (T rot ) and vibrational temperature (T vib ) of the plasma were determined via comparing the simulated and experimental spectra of N 2 (C 3 П u → B 3 П g ) by SPECAIR software. [29] The simulated toluene-containing air stream (50 ml/min) was evaporated by bubbling N 2 through pure toluene liquid and diluted by air to obtain the initial toluene concentration (70 ppm). Then, the simulated VOC-containing gas was introduced into the gear-cylinder DBD reactor.…”

Effect of rotating a dielectric barrier on discharge energy and uniformity in an atmospheric pressure air DBD

“…Dielectric barrier discharge (DBD), as an important nonthermal plasma source, shows broad application prospects, such as ozone generation, biomedicine, pollutant degradation, * Author to whom any correspondence should be addressed. energy conversion, and material surface modification [1][2][3][4][5]. Plasma characteristics, such as discharge energy and uniformity, are essential to achieve various plasma applications in a cost-effective and reliable way at atmospheric pressure [6].…”

Improving Oxygen Reduction Reaction Performance via Central Ions Enhanced Crystal-Field Splitting of MnO6 Octahedron

“…OMS-2 is a manganese oxide octahedral molecular sieve with a 2 × 2 tunnel structure of 0.46 nm × 0.46 nm, which is composed of MnO 6 octahedral chains shared by the edges and potassium ions within the tunnels . Due to its special structural characteristics of porous structure, mixed manganese valence (Mn 3+ and Mn 4+ ), and easy migration of lattice oxygen, the OMS-2 material has been widely studied for various applications in the field of catalysis. , Compared with other metals, potassium ions are usually used as template precursors to synthesize OMS-2 materials and stabilize a 2 × 2 tunnel structure, because the dimension of potassium ions is close to tunnels . In addition to maintaining the pore structure and pore size during the formation of the octahedral molecular sieves, potassium ions also play a role in compensating for the charge imbalance caused by the mixing of Mn 4+ and Mn 3+ in the tunnels.…”

“…32,33 Compared with other metals, potassium ions are usually used as template precursors to synthesize OMS-2 materials and stabilize a 2 × 2 tunnel structure, because the dimension of potassium ions is close to tunnels. 34 In addition to maintaining the pore structure and pore size during the formation of the octahedral molecular sieves, potassium ions also play a role in compensating for the charge imbalance caused by the mixing of Mn 4+ and Mn 3+ in the tunnels. The introduction of transition metal cations in the process of preparing OMS-2 is currently a common method to enhance its ORR activity, but the content of ions is difficult to fill too much, which makes it difficult to increase the proportion of Mn 3+ species as active sites to a large extent.…”