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采用湿浸渍法制备了用于蒽醌氢化生产H2O2的含BaO的Pd/δ,θ-Al2O3系列催化剂,利用X射线衍射、扫描电镜、氮气物理吸附、氢-氧滴定和电子探针等技术手段考察了不同BaO含量对Pd/δ,θ-Al2O3催化剂性能的影响. 结果表明,适量BaO的添加能抑制Al2O3的高温烧结,增大载体的比表面积,提高催化剂上金属Pd的分散度,减小Pd层厚度以及提高催化剂表面的Pd浓度,从而提高了催化剂的氢化活性. 在钯负载量相同时,添加3%的BaO可使催化剂的活性提高25%左右.
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催化学报
ISSN: 0253-9837
CN: 21-1601/O6
Year: 2008
Issue: 5
Volume: 29
Page: 463-467
0 . 7 0 7
JCR@2008
1 5 . 7 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
JCR Journal Grade:3
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 3
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