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Preparation of cinnamyl alcohol via transfer hydrogenation of cinnamaldehyde catalyzed by ZrO(OH)2
- Low-Carbon Chemistry and Chemical Engineering Pages: 1-8(2025)
- 作者机构：
中石化（上海）石油化工研究院有限公司，上海 201208
- 作者简介：
- 基金信息：
DOI：10.12434/j.issn.2097-2547.20250062
CLC： TQ426Received：19 February 2025，
Revised：06 April 2025，
Published Online：07 July 2025，
- 稿件说明：
移动端阅览
屠晓萍.ZrO（OH）2催化肉桂醛转移加氢制备肉桂醇[J].低碳化学与化工,
TU Xiaoping.Preparation of cinnamyl alcohol via transfer hydrogenation of cinnamaldehyde catalyzed by ZrO(OH)2[J].Low-Carbon Chemistry and Chemical Engineering,
屠晓萍.ZrO（OH）2催化肉桂醛转移加氢制备肉桂醇[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20250062.
TU Xiaoping.Preparation of cinnamyl alcohol via transfer hydrogenation of cinnamaldehyde catalyzed by ZrO(OH)2[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20250062.
摘要
肉桂醛催化转移加氢制备肉桂醇具有重要的现实意义，催化剂是实现肉桂醛选择性加氢的关键。采用沉淀法在不同陈化温度下制备了一系列ZrO(OH)
2
催化剂，并以陈化温度为25 ℃所得ZrO(OH)
2
-25进行煅烧制得ZrO
2
-25。分别采用XRD、N
2
吸/脱附、SEM、Py-IR和XPS对ZrO(OH)
2
-25和ZrO
2
-25的晶相结构、织构性质、微观形貌、酸位点和—OH含量进行了表征。研究了两种
催化剂的催化性能并考察了陈化温度、反应温度、肉桂醛投料量和供氢剂种类对ZrO(OH)
2
-25催化性能的影响。结果表明，ZrO(OH)
2
-25呈现无定形态，比表面积为295 m
2
/g，而ZrO
2
为四方晶型，比表面积为144 m
2
/g。在0.25 mmol肉桂醛、3 mL异丙醇为供氢剂、40 mg ZrO(OH)
2
-25、1 MPa N
2
、反应温度为120 °C和反应时间为4.0 h的最优反应条件下，ZrO(OH)
2
-25的肉桂醛转化率为97.1%，肉桂醇选择性为82.4%。在相同条件下，ZrO(OH)2-25表现出较ZrO2-25更好的催化性能与其表面丰富的—OH有关。
Abstract
The catalytic transfer hydrogenation of cinnamaldehyde to cinnamyl alcohol is of great practical significance
and the catalyst is the key to achieving selective hydrogenation of cinnamaldehyde. A series of ZrO(OH)
2
catalysts were prepared by precipitation method at different aging temperatures
and ZrO
2
-25 was obtained by calcining ZrO(OH)
2
-25
which was aged at 25 ℃. The crystal phase structures
textural properties
microscopic morphologies
acid sites and —OH contents of ZrO(OH)
2
-25 and ZrO
2
-25 were characterized by XRD
N
2
adsorption/desorption
SEM
Py-IR and XPS
respectively. The catalytic performances of the two catalysts were evaluated
and the effects of aging temperatures
reaction temperatures
cinnamaldehyde feeding amounts and hydrogen donor types on the catalytic performance of ZrO(OH)
2
-25 were investigated. The results show that ZrO(OH)
2
-25 exhibits amorphous state with specific surface area of 295 m
2
/g
while ZrO
2
-25 has tetragonal crystal structure with specific surface area of 144 m
2
/g. Under the optimal reaction conditions of 0.25 mmol cinnamaldehyde
3 mL isopropanol as hydrogen donor
40 mg ZrO(OH)
2
-25
1 MPa N
2
reaction temperature of 120 ℃ and reaction time of 4.0 h
the cinnamaldehyde conversion rate reaches 97.1% and the cinnamyl alcohol selectivity reaches 82.4%. The better catalytic performance of ZrO(OH)
2
-25 than ZrO2-25 under same conditions is attributed to abundant —OH on its surface.
关键词
Keywords
references
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