Measurement of collisional quenching rate coefficient of nitrogen metastable molecule by air pollutants

2015 Fiscal Year Final Research Report

• Project/Area Number: 24560344
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Chiba Institute of Technology
• Principal Investigator: SUZUKI Susumu 千葉工業大学, 工学部, 教授 (00265472)
• Co-Investigator(Kenkyū-buntansha): ITOH Haruo 千葉工業大学, 工学部, 教授 (90083849)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 窒素準安定励起分子 / 大気汚染物質 / 衝突脱励起反応速度係数

Outline of Final Research Achievements

The metastable nitrogen molecule N2(A3Σ+u) plays an important role to reaction process with the active species in air pollutants. In particular, N2(A3Σ+u)which contributes to the decomposition of the air pollutant gases is the main radicals. With their long lifetime and high internal energies, N2(A3Σ+u) can decomposc air pollutant gas molecules by excitation transfer reactions.
In this investigation, the determination of the effective lifetime of N2(A3Σ+u) in N2/p-xylene (C8H10), N2/ethyl acetate (C4H8O2), N2/styrene (C8H8), N2/ perfluorocarbon (C2F6 and C3F8), N2/ethane (C2H6), N2/propane (C3H8) and N2/water vapor (H2O) is carried out by waveform analysis in the Townsend discharge region. The collisional quenching rate coefficients of N2(A3Σ+u)by those gases are determined.
Furthermore, we determine the collisional quenching rate coefficients of the metastable excited state of neon Ne(3P2) by the ground state of neon Ne(1S0).

Free Research Field

工学