Nickel silicides prepared from organometallic polymer as efficient catalyst towards hydrogenation of phenylacetylene

Yang, Kaixuan; Chen, Xiaozhen; Guan, Junfeng; Liang, Changhai

doi:10.1016/j.cattod.2014.09.027

Cited by 27 publications

(10 citation statements)

References 30 publications

(34 reference statements)

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“…The heterogeneous hydrogenation of phenylacetylene was carried out in an autoclave or a batch reactor in previous researches 40 41 42 43 44 . The catalytic performance of the resulting Pd/TiO 2 samples was evaluated by semihydrogenation of phenylacetylene to styrene.…”

Section: Resultsmentioning

confidence: 99%

Photodeposited Pd Nanoparticles with Disordered Structure for Phenylacetylene Semihydrogenation

Fan

Hao

et al. 2017

Sci Rep

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Developing effective heterogeneous metal catalysts with high selectivity and satisfactory activity for chemoselective hydrogenation of alkyne to alkene is of great importance in the chemical industry. Herein, we report our efforts to fabricate TiO2-supported Pd catalysts by a photodeposition method at room temperature for phenylacetylene semihydrogenation to styrene. The resulting Pd/TiO2 catalyst, possessing smaller Pd ensembles with ambiguous lattice fringes and more low coordination Pd sites, exhibits higher styrene selectivity compared to two contrastive Pd/TiO2 samples with larger ensembles and well-organized crystal structure fabricated by deposition-precipitation or photodeposition with subsequent thermal treatment at 300 °C. The sample derived from photodeposition exhibits greatly slow styrene hydrogenation in kinetic evaluation because the disordered structure of Pd particles in photodeposited Pd/TiO2 may prevent the formation of β-hydride phases and probably produce more surface H atoms, which may favor high styrene selectivity.

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Section: Resultsmentioning

confidence: 99%

Photodeposited Pd Nanoparticles with Disordered Structure for Phenylacetylene Semihydrogenation

Fan

Hao

et al. 2017

Sci Rep

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“…Based on our experimental results, the diffraction peaks of oxides of Au and Pt were not observed. It can be concluded that AuPt NPCs were prepared by forming bimetallic nanocomposite rather than the mixture of Au NPs@MWCNTs and Pt NPs@MWCNTs [40,41].…”

Section: Materials Characterizationmentioning

confidence: 99%

AuPt Nanoparticles Clusters on MWCNTs with Enhanced Electrocatalytic Activity for Methanol Oxidation

et al. 2018

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AuPt nanoparticles clusters (NPCs) were electrodeposited on multiwalled carbon nanotubes (MWCNTs). The as-prepared AuPt NPCs@MWCNTs nanocomposites exhibited considerably enhanced electrocatalytic activity than Pt NPs@MWCNTs for methanol oxidation in acid medium. In comparison with Pt NPs@MWCNTs, a remarkable resistance to CO poisoning and a higher If/Ib value (the ratio of the forward scan oxidation peak current (If) and reverse scan oxidation peak current (Ib)) was achieved by AuPt NPCs@MWCNTs electrocatalyst, which is attributable to the unique NPCs nanostructure with enlarged electrochemical active surface areas. These results demonstrated the potential of AuPt NPCs@MWCNTs, which can be considered as an efficient electrocatalyst for methanol oxidation in direct methanol fuel cells.

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“…1 Metal silicides have been widely used in the field of thermoelectric materials, 2 solar energy conversion, 3 lithium-ion batteries, 4 thermal emission, 5 wear-resistant materials 6 and catalysts. 7,8 In previous research, transition metal silicide catalysts (such as Ni x Si and Co x Si) have shown excellent catalytic performance in alkyne/unsaturated aldehyde/aromatic hydrogenation, [9][10][11][12][13][14][15][16] tandem synthesis, 17 hydrodesulfurization 18,19 and oxygen evolution reactions. 20 However, noble-metal silicide catalysts have rarely been reported due to the limitations of preparation methods.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of metal silicides using polyhedral oligomeric silsesquioxane as a silicon source for semi-hydrogenation of phenylacetylene

Wang

Cheng

Zhang

et al. 2022

Inorg. Chem. Front.

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Nickel silicides prepared from organometallic polymer as efficient catalyst towards hydrogenation of phenylacetylene

Cited by 27 publications

References 30 publications

Photodeposited Pd Nanoparticles with Disordered Structure for Phenylacetylene Semihydrogenation

Photodeposited Pd Nanoparticles with Disordered Structure for Phenylacetylene Semihydrogenation

AuPt Nanoparticles Clusters on MWCNTs with Enhanced Electrocatalytic Activity for Methanol Oxidation

Synthesis of metal silicides using polyhedral oligomeric silsesquioxane as a silicon source for semi-hydrogenation of phenylacetylene

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