Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13

Research output: Contribution to journalArticle

Standard

Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13. / Clemens, A. K. S.; Shishkin, A.; Carlsson, P. -A.; Skoglundh, M.; Martinez, Francisco; Matej, Zdenek; Balmes, Olivier; Harelind, H.

In: ACS Catalysis, Vol. 5, No. 10, 2015, p. 6209-6218.

Research output: Contribution to journalArticle

Harvard

Clemens, AKS, Shishkin, A, Carlsson, P-A, Skoglundh, M, Martinez, F, Matej, Z, Balmes, O & Harelind, H 2015, 'Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13', ACS Catalysis, vol. 5, no. 10, pp. 6209-6218. https://doi.org/10.1021/acscatal.5b01200

APA

Clemens, A. K. S., Shishkin, A., Carlsson, P. -A., Skoglundh, M., Martinez, F., Matej, Z., ... Harelind, H. (2015). Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13. ACS Catalysis, 5(10), 6209-6218. https://doi.org/10.1021/acscatal.5b01200

CBE

Clemens AKS, Shishkin A, Carlsson P-A, Skoglundh M, Martinez F, Matej Z, Balmes O, Harelind H. 2015. Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13. ACS Catalysis. 5(10):6209-6218. https://doi.org/10.1021/acscatal.5b01200

MLA

Vancouver

Clemens AKS, Shishkin A, Carlsson P-A, Skoglundh M, Martinez F, Matej Z et al. Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13. ACS Catalysis. 2015;5(10):6209-6218. https://doi.org/10.1021/acscatal.5b01200

Author

Clemens, A. K. S. ; Shishkin, A. ; Carlsson, P. -A. ; Skoglundh, M. ; Martinez, Francisco ; Matej, Zdenek ; Balmes, Olivier ; Harelind, H. / Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13. In: ACS Catalysis. 2015 ; Vol. 5, No. 10. pp. 6209-6218.

RIS

TY - JOUR

T1 - Reaction-driven Ion Exchange of Copper into Zeolite SSZ-13

AU - Clemens, A. K. S.

AU - Shishkin, A.

AU - Carlsson, P. -A.

AU - Skoglundh, M.

AU - Martinez, Francisco

AU - Matej, Zdenek

AU - Balmes, Olivier

AU - Harelind, H.

PY - 2015

Y1 - 2015

N2 - We have used several techniques to characterize Cu-SSZ-13 before and after exposure to reaction conditions relevant for NO reduction by NH3-SCR to address the increase in NH3-SCR activity observed as a function of time on stream. Specifically, we focus on characterizing copper species in samples prepared with solid state ion exchange (SSIE) having varying Cu loadings from 0.7 to 5.2 wt %. X-ray diffraction shows that CuO species that likely remain from the SSIE synthesis on the outside of the zeolite crystallites are significantly reduced by exposure to reaction conditions. High-resolution X-ray diffraction (HR-XRD) further reveals a corresponding increase of Cu2O species. X-ray photoelectron, Auger electron, and ultraviolet -visible spectroscopy show an increase in both Cu(II) and Cu(I) species inside the zeolite pores, with a preserved long-range order of the zeolite structure as revealed by HR-XRD.

AB - We have used several techniques to characterize Cu-SSZ-13 before and after exposure to reaction conditions relevant for NO reduction by NH3-SCR to address the increase in NH3-SCR activity observed as a function of time on stream. Specifically, we focus on characterizing copper species in samples prepared with solid state ion exchange (SSIE) having varying Cu loadings from 0.7 to 5.2 wt %. X-ray diffraction shows that CuO species that likely remain from the SSIE synthesis on the outside of the zeolite crystallites are significantly reduced by exposure to reaction conditions. High-resolution X-ray diffraction (HR-XRD) further reveals a corresponding increase of Cu2O species. X-ray photoelectron, Auger electron, and ultraviolet -visible spectroscopy show an increase in both Cu(II) and Cu(I) species inside the zeolite pores, with a preserved long-range order of the zeolite structure as revealed by HR-XRD.

KW - NH3-SCR

KW - Cu-SSZ-13

KW - diesel exhaust aftertreatment

KW - solid-state

KW - ion-exchange

KW - NOx reduction

U2 - 10.1021/acscatal.5b01200

DO - 10.1021/acscatal.5b01200

M3 - Article

VL - 5

SP - 6209

EP - 6218

JO - ACS Catalysis

JF - ACS Catalysis

SN - 2155-5435

IS - 10

ER -