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author:

Riley, C. (Riley, C..) [1] | De, La, Riva, A. (De, La, Riva, A..) [2] | Zhou, S. (Zhou, S..) [3] | Wan, Q. (Wan, Q..) [4] | Peterson, E. (Peterson, E..) [5] | Artyushkova, K. (Artyushkova, K..) [6] | Farahani, M.D. (Farahani, M.D..) [7] | Friedrich, H.B. (Friedrich, H.B..) [8] | Burkemper, L. (Burkemper, L..) [9] | Atudorei, N.-V. (Atudorei, N.-V..) [10] | Lin, S. (Lin, S..) [11] | Guo, H. (Guo, H..) [12] | Datye, A. (Datye, A..) [13]

Indexed by:

Scopus

Abstract:

Metallic nickel is known to be an active, but not a selective hydrogenation catalyst for conversion of alkynes to alkenes. On the other hand, nickel oxide is not active. Recently, we have demonstrated that nickel doped into ceria provides an inexpensive catalyst for selective hydrogenation of acetylene in the presence of ethylene. Here, we evaluate various synthesis methods to achieve optimal selective hydrogenation performance. We examined incipient wetness impregnation, coprecipitation, solution combustion, and sol-gel synthesis to study how the method of preparation affects catalytic structure and behavior. Sol-gel synthesis, coprecipitation, and solution combustion synthesis methods favor nickel incorporation into the ceria lattice, while incipient wetness impregnation creates segregated nickel species on the ceria surface. For hydrogenation of acetylene, these nickel surface species lead to poor ethylene selectivity due to ethane and oligomer formation. However, when nickel is incorporated into the ceria lattice, ethane formation is prevented even while achieving 100 % conversion of acetylene. Coke formation is also significantly reduced on these catalysts compared to conventional nanoparticle counterparts. We conclude that sol-gel synthesis provides the optimal method for creating a uniform dopant distribution within the high surface area ceria. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keyword:

Acetylene hydrogenation; catalyst synthesis; ceria; nickel; selective hydrogenation

Community:

  • [ 1 ] [Riley, C.]Department of Chemical and Biological Engineering and Center for Microengineered Materials, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 2 ] [De La Riva, A.]Department of Chemical and Biological Engineering and Center for Microengineered Materials, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 3 ] [Zhou, S.]Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 4 ] [Zhou, S.]Department of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen, 333403, China
  • [ 5 ] [Wan, Q.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 6 ] [Peterson, E.]Department of Chemical and Biological Engineering and Center for Microengineered Materials, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 7 ] [Artyushkova, K.]Department of Chemical and Biological Engineering and Center for Microengineered Materials, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 8 ] [Farahani, M.D.]Catalysis Research Group, School of Chemistry and Physics Westville Campus, University of KwaZulu-Natal, Durban, 4000, South Africa
  • [ 9 ] [Friedrich, H.B.]Catalysis Research Group, School of Chemistry and Physics Westville Campus, University of KwaZulu-Natal, Durban, 4000, South Africa
  • [ 10 ] [Burkemper, L.]Center for Stable Isotopes, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 11 ] [Atudorei, N.-V.]Center for Stable Isotopes, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 12 ] [Lin, S.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, China
  • [ 13 ] [Guo, H.]Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, NM 87131, United States
  • [ 14 ] [Datye, A.]Department of Chemical and Biological Engineering and Center for Microengineered Materials, University of New Mexico, Albuquerque, NM 87131, United States

Reprint 's Address:

  • [Datye, A.]Department of Chemical and Biological Engineering and Center for Microengineered Materials, University of New MexicoUnited States

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Source :

ChemCatChem

ISSN: 1867-3880

Year: 2019

Issue: 5

Volume: 11

Page: 1526-1533

4 . 8 5 3

JCR@2019

3 . 8 0 0

JCR@2023

ESI HC Threshold:184

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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