TY - JOUR
T1 - Tandem In2O3-Pt/Al2O3catalyst for coupling of propane dehydrogenation to selective H2combustion
AU - Yan, Huan
AU - He, Kun
AU - Samek, Izabela A.
AU - Jing, Dian
AU - Nanda, MacY G.
AU - Stair, Peter C.
AU - Notestein, Justin M.
N1 - Funding Information:
This paper is based on work supported primarily by the National Science Foundation under Cooperative Agreement EEC-1647722. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. I.A.S. acknowledges support by the U.S. Department of Energy (DOE) under award DE-FG02-03-ER154757. This work made use of REACT, EPIC, and Keck- II facilities of Northwestern University. This research used MRCAT and the resources of the Advanced Photon Source, a DOE Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under contract DE-AC02-06CH11357.
Publisher Copyright:
© 2021 American Association for the Advancement of Science. All rights reserved.
PY - 2021/3/19
Y1 - 2021/3/19
N2 - Tandem catalysis couples multiple reactions and promises to improve chemical processing, but precise spatiotemporal control over reactive intermediates remains elusive. We used atomic layer deposition to grow In2O3over Pt/Al2O3, and this nanostructure kinetically couples the domains through surface hydrogen atom transfer, resulting in propane dehydrogenation (PDH) to propylene by platinum, then selective hydrogen combustion by In2O3, without excessive hydrocarbon combustion. Other nanostructures, including platinum on In2O3or platinum mixed with In2O3, favor propane combustion because they cannot organize the reactions sequentially. The net effect is rapid and stable oxidative dehydrogenation of propane at high per-pass yields exceeding the PDH equilibrium. Tandem catalysis using this nanoscale overcoating geometry is validated as an opportunity for highly selective catalytic performance in a grand challenge reaction.
AB - Tandem catalysis couples multiple reactions and promises to improve chemical processing, but precise spatiotemporal control over reactive intermediates remains elusive. We used atomic layer deposition to grow In2O3over Pt/Al2O3, and this nanostructure kinetically couples the domains through surface hydrogen atom transfer, resulting in propane dehydrogenation (PDH) to propylene by platinum, then selective hydrogen combustion by In2O3, without excessive hydrocarbon combustion. Other nanostructures, including platinum on In2O3or platinum mixed with In2O3, favor propane combustion because they cannot organize the reactions sequentially. The net effect is rapid and stable oxidative dehydrogenation of propane at high per-pass yields exceeding the PDH equilibrium. Tandem catalysis using this nanoscale overcoating geometry is validated as an opportunity for highly selective catalytic performance in a grand challenge reaction.
UR - http://www.scopus.com/inward/record.url?scp=85102999981&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85102999981&partnerID=8YFLogxK
U2 - 10.1126/science.abd4441
DO - 10.1126/science.abd4441
M3 - Article
C2 - 33737487
AN - SCOPUS:85102999981
VL - 371
SP - 1257
EP - 1260
JO - Science
JF - Science
SN - 0036-8075
IS - 6535
ER -