Preparation and investigation of Pd doped Cu catalysts for selective hydrogenation of acetylene

Cao, Xingjian; Lyu, Tengteng; Xie, Wentao; Mirjalili, Arash; Bradicich, Adelaide; Huitema, Ricky; Jang, Ben W.‐L.; Keum, Jong K.; More, Karren L.; Liu, Changjun; Yan, Xiaoliang

doi:10.1007/s11705-019-1822-3

Cited by 17 publications

(21 citation statements)

References 34 publications

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“…[184] Recently, Zhong et al studied hydrophobic acid-functionalized biochar as a catalyst for the HAA reaction of 2-MF and cyclic ketones. [245] Biochar, a carbonaceous material readily obtained through pyrolysis of biomass, [246][247][248][249] can be acidified with H 2 SO 4 (B-PhSO 3 H). The treated biochar catalysts exhibited BET surface areas of 400-700 m 2 , and a high density of sulfonic acid groups (2.0 mmol g À 1 ), which promoted the condensation of 2-MF with cyclohexanone.…”

Section: Hydroxyalkylation/alkylationmentioning

confidence: 99%

Bio‐Based Cycloalkanes: The Missing Link to High‐Performance Sustainable Jet Fuels

Muldoon

Harvey

2020

ChemSusChem

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David Glueck, with an emphasis on the synthesis of P-stereogenic phosphine ligands for asymmetric catalysis. He is currently a National Research Council (NRC) postdoctoral fellow with Dr. Benjamin Harvey at the Naval Air Warfare Center Weapons Division (NAWCWD) in China Lake, CA, USA. His research interests include the synthesis of small molecules with applications in fuels, materials, and catalysis. Benjamin G. Harvey received his Ph.D. in inorganic chemistry from the University of Utah, USA, in 2005, studying with Professor Richard D. Ernst. He is now a Senior Research Chemist at the Naval Air Warfare Center, Weapons Division located in China Lake, CA. His current research focuses on the utilization of bio-based substrates for the preparation of advanced materials and the development of hybrid synthetic routes that combine chemical catalysis with synthetic biology. Specific interests include advanced alternative fuels for jet, missile, and rocket propulsion, bio-based high-temperature thermosetting resins, biocomposites, lubricants, and green solvents.

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Section: Hydroxyalkylation/alkylationmentioning

confidence: 99%

Bio‐Based Cycloalkanes: The Missing Link to High‐Performance Sustainable Jet Fuels

Muldoon

Harvey

2020

ChemSusChem

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“…The conventional Pd catalysts used are expensive and offer low selectivity. [91][92][93][94] Similarly, for polymerization of styrene, any excess phenyl- acetylene should be selectively reduced to styrene. However, conventional Pd catalysts lead to complete hydrogenation and form ethylbenzene (Scheme 6).…”

Section: Hydrogenation Of Unsaturated Hydrocarbonsmentioning

confidence: 99%

“…Figure 19 vividly shows the effect of acidic and basic sites on the hydrogenation of acetylene. [116] In the work reported by Cao et al, [91] Pd doped Cu catalysts on gAl 2 O 3 were prepared by conventional sequential impregnation (CSI) and modified sequential impregnation (MSI). The major difference between the two methods was that in CSI, the catalysts were calcined (cal) whereas in MSI they were vacuum dried (vac) at room temperature.…”

Section: Hydrogenation Of Unsaturated Hydrocarbonsmentioning

confidence: 99%

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Recent Advances in Hydrogenation Reactions Using Bimetallic Nanocatalysts: A Review

2021

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Hydrogenation reactions have been studied for many decades now and have developed from reactions that appear simple to now being recognized for their many complexities. These reactions are generally catalyzed using monometallic and more recently, with bimetallic nanocatalysts. Hydrogenation plays a vital role in food, chemical, petrochemical, pharmaceuticals, and dye industries to name a few. The hydrogenated products derived from several biomass-based compounds are potential fossil fuels. Such products when employed in daily life, can help conserve natural resources. While hydrogenation of alkynes and alkenes are among the simplest of hydrogenation reactions, the most extensive and elegant manifestation of this reaction is seen in polymerization. Polymers like polythene, polypropylene (plastic) have replaced materials like glass, stainless steel, etc., in making daily use items for the obvious advantages of the former. Purification of alkenes is achieved by partially hydrogenating the respective alkynes present in trace amounts. This serves as an important step in the polymerization process. The presence of nitro group on aromatic rings makes them carcinogenic in nature which harms living organisms. For a safe environment, the elimination or modification of this nitro group becomes imperative. The products of hydrogenation of nitroaromatics and amino aromatics form the basis of pharmaceuticals and dyestuffs. A plethora of bimetallic catalysts have been used to catalyze these hydrogenation reactions. These catalysts are evaluated based on their selectivity and efficiency. This review highlights the recent advancements in the field of hydrogenation of nitro compounds, carbonyl compounds, and unsaturated hydrocarbons catalyzed by bimetallic nanoparticles.

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“…As a type of carbon material, biochar obtained from low-priced and widely available biomass has been extensively used as a support for catalysts due to its large surface area, adjustable pore size, and good stability. − Generally, acidic biochar is obtained by H 2 SO 4 , SO 3 , or ClSO 3 H sulfonation. ,,− However, the hydrophobicity decreases as more hydrophilic sulfonic acid groups are grafted. Moreover, the leaching of acid sites usually occurs during the catalytic reactions, resulting in weak stability and reusability .…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Alkylation Using Hydrophobic Sulfonic Acid-Functionalized Biochar as a Catalyst for Synthesis of High-Density Biofuels

Zhong

Zhang

Zhu

et al. 2019

ACS Sustainable Chem. Eng.

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Because H2O decreases the acidity of sulfonic acid-based catalysts and initiates catalytic side reactions, the catalytic activity and selectivity of these catalysts are often unsatisfactory in many reactions that generate H2O as a byproduct. Herein, for the first time, hydrophobic acid-functionalized biochar is prepared by a new route based on a two-step diazo grafting method using 4-aminobenzenesulfonic acid as the sulfonated agent and 4-tert-butylaniline as the hydrophobic agent. The acid density and hydrophobicity can be easily regulated by the amounts of benzenesulfonic acid and tert-butylbenzene groups, respectively. The resulting catalysts have a large specific surface area of 400–700 m2/g, high acid density of greater than 2.0 mmol/g, and strong hydrophobicity with an H2O contact angle of up to 136°. Compared with Amberlyst-15 and H2SO4-sulfonated biochar, the hydrophobic acidic biochar exhibits higher activity and selectivity in the alkylation of 4-ethylphenol with phenylmethanol and of 2-methylfuran with cyclic ketones (cyclopentanone and cyclohexanone) for the production of high-density biofuels. The successful preparation of the hydrophobic acidic biochar not only results in an efficient catalyst for reaction systems in which H2O has a deleterious effect but also paves a way for the functional modification of carbonaceous materials.

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Preparation and investigation of Pd doped Cu catalysts for selective hydrogenation of acetylene

Cited by 17 publications

References 34 publications

Bio‐Based Cycloalkanes: The Missing Link to High‐Performance Sustainable Jet Fuels

Bio‐Based Cycloalkanes: The Missing Link to High‐Performance Sustainable Jet Fuels

Recent Advances in Hydrogenation Reactions Using Bimetallic Nanocatalysts: A Review

Highly Efficient Alkylation Using Hydrophobic Sulfonic Acid-Functionalized Biochar as a Catalyst for Synthesis of High-Density Biofuels

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