e-journal

Effect of strong metal–support interaction on the catalytic performance of Pd/TiO2 in the liquid-phase semihydrogenation of phenylacetylene

---

Abstract.
Liquid-phase semihydrogenation of phenylacetylene under mild conditions has been investigated on a
series of solvothermal-derived nano-TiO2 supported Pd catalysts with various TiO2 crystallite sizes in
the range of 9–23 nm. As revealed by CO chemisorption and transmission electron microscopy, all the
catalysts exhibited strong metal–support interaction (SMSI) when reduced at 500 ◦C. The catalysts with
SMSI show remarkably high catalytic performance in terms of both hydrogenation activities (turnover
frequencies (TOFs) 9.1–21.4 s−1) and moderate-high selectivities to styrene (86–90%) at complete
conversion of phenylacetylene. Without SMSI effect (the catalysts reduced at 40 ◦C), styrene selectivity
and catalytic activity depended largely on the Pd particle size in which small Pd particles (formed
on small crystallite size TiO2 supports) exhibited lower phenylacetylene conversion and poor styrene
selectivity. Moreover, the TOF values of the non-SMSI catalysts were similar to those reported in the
literature for other supported Pd catalysts in liquid-phase semihydrogenation of phenylacetylene under
mild conditions (TOFs 1.3–2.8 s−1).

Keywords:
Pd/TiO2
Solvothermal synthesis
Liquid-phase semihydrogenation
Phenylacetylene
Strong metal–support interaction
TiO2 crystallite size

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

Journal of Catalysis

No. Panggil

-

Penerbit

London : Elsevier Inc.., 2009

Deskripsi Fisik

Journal of Catalysis 262 (2009) 199–205

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

KIMIA

Info Detail Spesifik

-

Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar