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SUMMARY:XAFS study of stable bimetallic catalysts for selective hydrogenat
 ion of furfural
DTSTART;VALUE=DATE-TIME:20200713T142300Z
DTEND;VALUE=DATE-TIME:20200713T142400Z
DTSTAMP;VALUE=DATE-TIME:20260307T093035Z
UID:indico-contribution-1901@indico.inp.nsk.su
DESCRIPTION:Speakers: Vladimir Kriventsov ()\nToday catalytic reaction of 
 the selective hydrogenation of furfural is perspective way to create of mo
 tor fuel components and products with high added value. Unfortunately exis
 ting catalysts providing high conversion of the initial furfural have not 
 sufficiently high selectivity for the target products (70-80%)\, which ind
 icates the need to develop new significantly more active and selective cat
 alysts with high stability. In this connection\, the search for correlatio
 ns between structural features and the charge state of metals in deposited
  bimetallic clusters and their catalytic activity and selectivity in the p
 rocess of selective hydrogenation of various functional groups of the furf
 ural molecule is an urgent research task. This presentation is devoted by 
 a study of the state and local structure of the active component of Ru-Sb\
 , Fe-Sb model catalysts catalysts for selective hydrogenation of furfural 
 by XAFS (XANES/EXAFS). The catalysts were prepared by sol-gel from organic
  and inorganic mono- and bimetallic complex precursors. All XAFS spectra w
 ere recorded at SSTRC\, Novosibirsk. The genesis of local structures and s
 tate metals for the prepared nano-structured catalysts were studied in det
 ail. The interatomic distances and corresponded coordination numbers were 
 determined. All possible structural models were discussed. The obtained XA
 FS results are in good agreement with XPS\, XRD\, EDX and HRTEM data.\nThe
  work was carried out in the framework of the RNF project no. 18-73-10216\
 , RFBR projects no. 19-05-50046\, 18-03-01251. The work was done at the sh
 ared research center SSTRC on the basis of the Novosibirsk FEL/VEPP-4-VEPP
 -2000 complex at BINP SB RAS\, using equipment supported by project RFMEFI
 62119X0022.\n\nhttps://indico.inp.nsk.su/event/24/contributions/1901/
LOCATION:
URL:https://indico.inp.nsk.su/event/24/contributions/1901/
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