Investigation of cyclohexane catalytic degradation driven by N atoms from N2 discharges

被引：0

作者：

Li, Yuying ^{[1
]}

Xu, Jiacheng ^{[1
]}

Zhang, Chunle ^{[1
]}

Yao, Shuiliang ^{[1
]}

Li, Jing ^{[1
]}

Wu, Zuliang ^{[1
]}

Gao, Erhao ^{[1
]}

Zhu, Jiali ^{[1
]}

机构：

[1] Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry, School of Environmental and Safety Engineering, Changzhou University, Changzhou,213164, China

来源：

Plasma Science and Technology | 2022年 / 25卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Catalyst surfaces - Catalytic degradation - Cyclohexane degradation - Dielectric barrier discharge reactors - Gas chromatographs - Ion currents - N atom - N2 discharge - Reaction temperature - ]+ catalyst;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effect of N2 discharge products on cyclohexane degradation over a MnO2/γ-Al2O3 catalyst has been evaluated by feeding N2 discharge products to the catalyst using a specially designed dielectric barrier discharge reactor. At a reaction temperature of 100 °C, the cyclohexane conversion increased from 2.46% (without N2 discharge products) to 26.3% (with N2 discharge products). N- and O-containing by-product (3, 4-dehydroproline) was found on the catalyst surface using gas chromatograph-mass spectrometry identification, in which C=N-C and C=N-H bonds were also confirmed from x-ray photoelectron spectroscopy analysis results. Operando analysis results using diffuse reflectance infrared Fourier transform spectroscopy revealed that N atoms can react with surface H2O possibly to NH and OH reactive species that have reactivities to promote CO oxidation to CO2. The mechanism of N-atom-driven cyclohexane degradation to CO and CO2 is proposed. © 2023 Hefei Institutes of Physical Science, Chinese Academy of Sciences and IOP Publishing.

引用

共 50 条

[31] N2(A) and N atom densities determination in the negative glow of dc-pulsed N2 and N2-H2 nitriding discharges.
Scherentz, V
Henrion, G
Hugon, R
INTERNATIONAL CONFERENCE ON PHENOMENA IN IONIZED GAS, VOL I, PROCEEDINGS, 1999, : 79 - 80
[32] A detailed discussion of the N2(C 3IIu) and N2(X 1Σg+) vibrational temperatures in N2 glow discharges
Levaton, J
Amorim, J
Monna, V
Nagai, J
Ricard, A
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 2004, 26 (01): : 59 - 64
[33] Determination of N and O-atoms, of N2(A) and N2(X, v>13) metastable molecules and N2+ ion densities in the afterglows of N2-H2, Ar-N2-H2 and Ar-N2-O2 microwave discharges
Zerrouki, H.
Ricard, A.
Sarrette, J. P.
13TH HIGH-TECH PLASMA PROCESSES CONFERENCE (HTPP-2014), 2014, 550
[34] SPECTROSCOPIC INVESTIGATION OF ENERGY-TRANSFER REACTIONS IN BCL3/N2 DISCHARGES
BREITBARTH, FW
PLASMA CHEMISTRY AND PLASMA PROCESSING, 1992, 12 (03) : 261 - 274
[35] PARESTHESIA FROM N2 OR N2 SUBSTITUTE - REPORT OF A CASE
GROSSMAN, LI
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS, 1978, 45 (01): : 114 - 115
[36] Determination of N and O-atoms and N2 (A) Metastable Molecule Densities in the Afterglows of N2-H2, Ar-N2-H2 and Ar-N2-O2 Microwave Discharges
Zerrouki, H.
Ricard, A.
Sarrette, J. P.
CONTRIBUTIONS TO PLASMA PHYSICS, 2014, 54 (10) : 827 - 837
[37] An investigation of N2O production from quenching of OH(A2Σ+) by N2
Estupiñán, EG
Stickel, RE
Wine, PH
CHEMICAL PHYSICS LETTERS, 2001, 336 (1-2) : 109 - 117
[38] Temperature measurements of the background gas and metastable argon atoms in N2/Ar nanosecond repetitively pulsed discharges
Manoharan, Rounak
Boyson, Toby K.
O'Byrne, Sean
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2020, 29 (11):
[39] DISSOCIATIVE EXCITATION OF N2 TO ATOMS IN RYDBERG LEVELS
FAIRCHIL.CE
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1972, 17 (01): : 132 - &
[40] DISCHARGES IN N2 FLOWING GAS FOR STEEL SURFACE NITRIDING
RICARD, A
REVUE DE PHYSIQUE APPLIQUEE, 1989, 24 (03): : 251 - 256

← 1 2 3 4 5 →