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Synthesis and characterization of Pt and Pd overlayer catalysts for aqueous phase reforming of lactose and hydrodeoxygenation of guaiacol and anisole.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Synthesis and characterization of Pt and Pd overlayer catalysts for aqueous phase reforming of lactose and hydrodeoxygenation of guaiacol and anisole./
作者:	Lai, Qinghua.
面頁冊數:	1 online resource (172 pages)
附註:	Source: Dissertation Abstracts International, Volume: 77-11(E), Section: B.
Contained By:	Dissertation Abstracts International77-11B(E).
標題:	Chemical engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9781339776439

Synthesis and characterization of Pt and Pd overlayer catalysts for aqueous phase reforming of lactose and hydrodeoxygenation of guaiacol and anisole.
Lai, Qinghua.

Synthesis and characterization of Pt and Pd overlayer catalysts for aqueous phase reforming of lactose and hydrodeoxygenation of guaiacol and anisole. - 1 online resource (172 pages)

Source: Dissertation Abstracts International, Volume: 77-11(E), Section: B.

Thesis (Ph.D.)

Includes bibliographical references

Supported bimetallic overlayer catalysts, Ni&commat;Pt, Co&commat;Pt, Ni&commat;Pd, and Mo&commat;Pt have been prepared by the directed deposition synthesis technique. The single crystal and computational studies have predicted that formation of Pd or Pt overlayer on Ni, Co or Mo base metal would cause a negative shift of d-band center of surface Pd or Pt, resulting in reduced binding strength for adsorbed species. The hydrogen chemisorption, ethylene hydrogenation descriptor reaction, XRD, H2-TPR, XAS and TEM studies were employed to characterize the catalysts. The alumina supported Ni&commat;Pt and Co&commat;Pt overlayer catalysts have been studied for aqueous phase reforming (APR) of lactose. Silica alumina supported Ni&commat;Pt, Ni&commat;Pd, and Mo&commat;Pt catalysts have been investigated for hydrodeoxygenation (HDO) of lignin derived bio-oils.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781339776439Subjects--Topical Terms:

555952
Chemical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Synthesis and characterization of Pt and Pd overlayer catalysts for aqueous phase reforming of lactose and hydrodeoxygenation of guaiacol and anisole.
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100 1 $a Lai, Qinghua. $3 1182106
245 1 0 $a Synthesis and characterization of Pt and Pd overlayer catalysts for aqueous phase reforming of lactose and hydrodeoxygenation of guaiacol and anisole.
264 0 $c 2016
300 $a 1 online resource (172 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 77-11(E), Section: B.
500 $a Adviser: Joseph H. Holles.
502 $a Thesis (Ph.D.) $c University of Wyoming $d 2016.
504 $a Includes bibliographical references
520 $a Supported bimetallic overlayer catalysts, Ni&commat;Pt, Co&commat;Pt, Ni&commat;Pd, and Mo&commat;Pt have been prepared by the directed deposition synthesis technique. The single crystal and computational studies have predicted that formation of Pd or Pt overlayer on Ni, Co or Mo base metal would cause a negative shift of d-band center of surface Pd or Pt, resulting in reduced binding strength for adsorbed species. The hydrogen chemisorption, ethylene hydrogenation descriptor reaction, XRD, H2-TPR, XAS and TEM studies were employed to characterize the catalysts. The alumina supported Ni&commat;Pt and Co&commat;Pt overlayer catalysts have been studied for aqueous phase reforming (APR) of lactose. Silica alumina supported Ni&commat;Pt, Ni&commat;Pd, and Mo&commat;Pt catalysts have been investigated for hydrodeoxygenation (HDO) of lignin derived bio-oils.
520 $a The H2 chemisorption and ethylene hydrogenation descriptor showed that alumina supported Ni&commat;Pt and Co&commat;Pt overlayer catalysts had reduced adsorption strength compared to a Pt only catalyst, which agrees with the computational prediction. XAS results showed that overlayer catalysts exhibited higher white line intensity than Pt catalyst, indicating a negative d-band shift for the Pt overlayer. Lactose APR studies showed that lactose could be used as feedstock to produce H2 and CO under desirable reaction condition. The Pt active sites of alumina supported Ni&commat;Pt and Co&commat;Pt overlayer catalysts showed significantly enhanced H 2 production selectivity and activity when compared with that of a Pt only catalyst. The single deposition overlayer with the largest d-band shift showed the highest H2 activity.
520 $a Silica alumina supported Ni&commat;Pd, Ni&commat;Pt, and Mo&commat;Pt overlayer catalysts also showed the reduced adsorption strength compared to the Pd or Pt only catalyst. The TEM images of Ni&commat;Pd overlayer catalyst provided evidence for a core/shell type structure. The H2-TPR results demonstrated the close interaction between Pt and Mo species for Mo&commat;Pt overlayer catalysts. Guaiacol and anisole hydrodeoxygenation results showed that Pd and Pt active sites of overlayer catalysts showed significantly enhanced deoxygenation activity compared with that of Pd or Pt only catalyst. Further studies showed that guaiacol and anisole could be completely deoxygenated over the silica alumina supported metal catalysts at high W/F, yielding benzene, toluene, and xylenes as major products.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Chemical engineering. $3 555952
655 7 $a Electronic books. $2 local $3 554714
690 $a 0542
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Wyoming. $b Chemical & Petroleum Engineering. $3 1182107
773 0 $t Dissertation Abstracts International $g 77-11B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10116175 $z click for full text (PQDT)