Tuning of conversion and optical emission by electron temperature in inductively coupled CO2 plasma

Diyu Zhang, Qiang Huang, Edwin J. Devid, Eric Schuler, N. Raveendran Shiju, Gadi Rothenberg, Gerard van Rooij, Ruilong Yang, Kezhao Liu, Aart W. Kleyn

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1 Citation (Scopus)

Abstract

This paper focuses on how the electron temperature and other plasma properties affect optical emission and CO2 conversion in CO2 plasma. Such plasma-mediated reactions can enable efficient CO2 reuse. We study CO2 and CO plasmas generated by inductively coupled radiofrequency power (30–300 W) at low pressures (6–400 Pa). By varying the argon admixture, we can study the effect of the electron temperature, Te, on the conversion and emission properties using optical emission spectroscopy, mass spectrometry, and electrical probe measurements. Importantly, we can observe several parameters simultaneously: Te, CO2 conversion, chemiluminescence from CO2, and dissociation products and optical emission from several atomic and CO transitions and from the C2 Swan system. On the basis of these results, we establish a correlation between Te, the CO2 conversion, and the optical emission spectra. A low Te enhances CO2 conversion and Swan band emission. In contrast with published studies, our results show that the CO2 and C2 vibrations are not in local equilibrium. This means that the vibrational temperatures of CO2 and C2 should differ.
LanguageEnglish
Pages19338-19347
Number of pages10
JournalJournal of Physical Chemistry C
Volume122
Issue number34
DOIs
StatePublished - 30 Aug 2018

Cite this

Zhang, D., Huang, Q., Devid, E. J., Schuler, E., Shiju, N. R., Rothenberg, G., ... Kleyn, A. W. (2018). Tuning of conversion and optical emission by electron temperature in inductively coupled CO2 plasma. Journal of Physical Chemistry C, 122(34), 19338-19347. DOI: 10.1021/acs.jpcc.8b04716
Zhang, Diyu ; Huang, Qiang ; Devid, Edwin J. ; Schuler, Eric ; Shiju, N. Raveendran ; Rothenberg, Gadi ; van Rooij, Gerard ; Yang, Ruilong ; Liu, Kezhao ; Kleyn, Aart W./ Tuning of conversion and optical emission by electron temperature in inductively coupled CO2 plasma. In: Journal of Physical Chemistry C. 2018 ; Vol. 122, No. 34. pp. 19338-19347
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abstract = "This paper focuses on how the electron temperature and other plasma properties affect optical emission and CO2 conversion in CO2 plasma. Such plasma-mediated reactions can enable efficient CO2 reuse. We study CO2 and CO plasmas generated by inductively coupled radiofrequency power (30–300 W) at low pressures (6–400 Pa). By varying the argon admixture, we can study the effect of the electron temperature, Te, on the conversion and emission properties using optical emission spectroscopy, mass spectrometry, and electrical probe measurements. Importantly, we can observe several parameters simultaneously: Te, CO2 conversion, chemiluminescence from CO2, and dissociation products and optical emission from several atomic and CO transitions and from the C2 Swan system. On the basis of these results, we establish a correlation between Te, the CO2 conversion, and the optical emission spectra. A low Te enhances CO2 conversion and Swan band emission. In contrast with published studies, our results show that the CO2 and C2 vibrations are not in local equilibrium. This means that the vibrational temperatures of CO2 and C2 should differ.",
author = "Diyu Zhang and Qiang Huang and Devid, {Edwin J.} and Eric Schuler and Shiju, {N. Raveendran} and Gadi Rothenberg and {van Rooij}, Gerard and Ruilong Yang and Kezhao Liu and Kleyn, {Aart W.}",
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Zhang, D, Huang, Q, Devid, EJ, Schuler, E, Shiju, NR, Rothenberg, G, van Rooij, G, Yang, R, Liu, K & Kleyn, AW 2018, 'Tuning of conversion and optical emission by electron temperature in inductively coupled CO2 plasma' Journal of Physical Chemistry C, vol. 122, no. 34, pp. 19338-19347. DOI: 10.1021/acs.jpcc.8b04716

Tuning of conversion and optical emission by electron temperature in inductively coupled CO2 plasma. / Zhang, Diyu; Huang, Qiang; Devid, Edwin J.; Schuler, Eric; Shiju, N. Raveendran; Rothenberg, Gadi; van Rooij, Gerard; Yang, Ruilong; Liu, Kezhao; Kleyn, Aart W.

In: Journal of Physical Chemistry C, Vol. 122, No. 34, 30.08.2018, p. 19338-19347.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Tuning of conversion and optical emission by electron temperature in inductively coupled CO2 plasma

AU - Zhang,Diyu

AU - Huang,Qiang

AU - Devid,Edwin J.

AU - Schuler,Eric

AU - Shiju,N. Raveendran

AU - Rothenberg,Gadi

AU - van Rooij,Gerard

AU - Yang,Ruilong

AU - Liu,Kezhao

AU - Kleyn,Aart W.

PY - 2018/8/30

Y1 - 2018/8/30

N2 - This paper focuses on how the electron temperature and other plasma properties affect optical emission and CO2 conversion in CO2 plasma. Such plasma-mediated reactions can enable efficient CO2 reuse. We study CO2 and CO plasmas generated by inductively coupled radiofrequency power (30–300 W) at low pressures (6–400 Pa). By varying the argon admixture, we can study the effect of the electron temperature, Te, on the conversion and emission properties using optical emission spectroscopy, mass spectrometry, and electrical probe measurements. Importantly, we can observe several parameters simultaneously: Te, CO2 conversion, chemiluminescence from CO2, and dissociation products and optical emission from several atomic and CO transitions and from the C2 Swan system. On the basis of these results, we establish a correlation between Te, the CO2 conversion, and the optical emission spectra. A low Te enhances CO2 conversion and Swan band emission. In contrast with published studies, our results show that the CO2 and C2 vibrations are not in local equilibrium. This means that the vibrational temperatures of CO2 and C2 should differ.

AB - This paper focuses on how the electron temperature and other plasma properties affect optical emission and CO2 conversion in CO2 plasma. Such plasma-mediated reactions can enable efficient CO2 reuse. We study CO2 and CO plasmas generated by inductively coupled radiofrequency power (30–300 W) at low pressures (6–400 Pa). By varying the argon admixture, we can study the effect of the electron temperature, Te, on the conversion and emission properties using optical emission spectroscopy, mass spectrometry, and electrical probe measurements. Importantly, we can observe several parameters simultaneously: Te, CO2 conversion, chemiluminescence from CO2, and dissociation products and optical emission from several atomic and CO transitions and from the C2 Swan system. On the basis of these results, we establish a correlation between Te, the CO2 conversion, and the optical emission spectra. A low Te enhances CO2 conversion and Swan band emission. In contrast with published studies, our results show that the CO2 and C2 vibrations are not in local equilibrium. This means that the vibrational temperatures of CO2 and C2 should differ.

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JO - Journal of Physical Chemistry C

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JF - Journal of Physical Chemistry C

SN - 1932-7455

IS - 34

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Zhang D, Huang Q, Devid EJ, Schuler E, Shiju NR, Rothenberg G et al. Tuning of conversion and optical emission by electron temperature in inductively coupled CO2 plasma. Journal of Physical Chemistry C. 2018 Aug 30;122(34):19338-19347. Available from, DOI: 10.1021/acs.jpcc.8b04716