Role of the surface–subsurface interlayer interaction in enhancing oxygen hydrogenation to water in Pd3Co alloy catalysts

A highly active and selective hydrogenation of biomass-derived furfural into furfuryl alcohol was achieved using supported single phase Ni3Sn2 alloy catalysts. Various supports such as active carbon (AC), g-Al2O3, Al(OH)3, ZnO, TiO2, ZrO2, MgO, Li-TN, and SiO2 have been employed in order to understand the role of the support on the formation of Ni3Sn2 alloy phase and its catalytic performance. Supported Ni3Sn2 alloy catalysts were synthesised via a simple hydrothermal treatment of the mixture of aqueous solution of nickel chloride hexahydrate and ethanol solution of tin(II) chloride dihydrate in presence of ethylene glycol at 423 K for 24 h followed by H2 treatment at 673 K for 1.5 h, then characterised by using ICP-AES, XRD, H2- and N2-adsorption. XRD profiles of samples showed that the Ni3Sn2 alloy phases are readily formed during hydrothermal processes and become clearly observed at 2θ = 43-44o after H2 treatment. The presence of Ni3Sn2 alloy species that dispersed on the supports is believed to play a key role in highly active and selective hydrogenation of biomass-derived furfural towards furfuryl alcohol. Ni3Sn2 on TiO2 and ZnO supports exhibited much lower reaction temperature to achieved >99% yield of furfuryl alcohol product compared with other supports. The effects of loading amount of Ni-Sn, reaction conditions (temperature and time profile) on the activity and selectivity towards the desired product are systematically discussed. Copyright © 2016 BCREC GROUP. All rights reservedReceived: 10th November 2015; Revised: 31st December 2015; Accepted: 5th January 2016How to Cite: Rodiansono, R., Astuti, M.D., Khairi, S., Shimazu, S. (2016). Selective Hydrogenation of Biomass-derived Furfural over Supported Ni3Sn2 Alloy: Role of Supports. Bulletin of Chemical Reaction Engineering & Catalysis, 11 (1): 1-9. (doi:10.9767/bcrec.11.1.393.1-9)Permalink/DOI: <a href="http://dx.doi.org/10.9767/bcrec.11.1.393.1-9">http://dx.doi.org/10.9767/bcrec.11.1.393.1-9</a>

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Surface restructuring of Cu-based single-atom alloy catalysts under reaction conditions: the essential role of adsorbates

Physical Chemistry Chemical Physics ◽

10.1039/c7cp02152f ◽

2017 ◽

Vol 19 (27) ◽

pp. 18010-18017 ◽

Cited By ~ 29

Author(s):

Kunran Yang ◽

Bo Yang

Keyword(s):

Density Functional ◽

Essential Role ◽

Single Atom ◽

Surface Restructuring ◽

Reaction Conditions ◽

Functional Theory ◽

Alloy Catalysts ◽

Single Atom Alloy ◽

Catalytic Performances

The stabilities and catalytic performances of single-atom alloy (SAA) structures under the reaction conditions of acetylene hydrogenation are thoroughly examined utilizing density functional theory (DFT) calculations.

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Controlling electronic properties of MoS2/graphene oxide heterojunctions for enhancing photocatalytic performance: the role of oxygen

Physical Chemistry Chemical Physics ◽

10.1039/c7cp07303h ◽

2018 ◽

Vol 20 (3) ◽

pp. 1974-1983 ◽

Cited By ~ 15

Author(s):

Xiaotian Hua ◽

Xinguo Ma ◽

Jisong Hu ◽

Hua He ◽

Guowang Xu ◽

...

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Electronic Properties ◽

Photocatalytic Performance ◽

Photocatalytic Efficiency ◽

Interlayer Interaction ◽

Theoretical Understanding ◽

The Relationship

The manipulation of the constituents of novel hetero-photocatalysts is an effective method for improving photocatalytic efficiency, but a theoretical understanding of the relationship between interlayer interaction and photocatalytic activity is still lacking.

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Layer-dependent Fracture Strength of Few-layer WS2 Induced by Interlayer Sliding: A Molecular Dynamics Study

Journal of Physics D Applied Physics ◽

10.1088/1361-6463/ac4725 ◽

2021 ◽

Author(s):

Hao Zhan ◽

Xinfeng Tan ◽

Xin Zhang ◽

Guoxin Xie ◽

Dan Guo

Keyword(s):

Molecular Dynamics ◽

Fracture Strength ◽

Plane Deformation ◽

Dynamics Simulation ◽

Interlayer Interaction ◽

Individual Layer ◽

Out Of Plane ◽

Relationship Of ◽

Tip Radius

Abstract Understanding the relationship of interlayer interaction with mechanical properties and behaviors of two-dimensional layered materials (2DLMs) is critical in favoring the development of related nanodevices, nevertheless, still challenging due to the difficulties in experiments. In this work, nanoindentation simulations on few-layer WS2 were conducted by varying tip radius, suspended membrane radius and membrane size using molecular dynamics simulation. Consistent with our previous experimental results, few-layer WS2 exhibited layer-dependent reduction in fracture strength owing to the uneven stress distribution among individual layer induced by interlayer sliding under out-of-plane deformation. Besides, apparent curve hysteresis was observed due to interlayer sliding in the supported region when large tip radius and membrane radius were employed. However, instead of the supported part, the interlayer sliding within the suspended part resulted in the reduced fracture strength with the increase of layer number. These findings not only provide an in-depth comprehension on the influence of interlayer sliding on the fracture strength of few-layer WS2, but also suggest that the role of interlayer interaction should be seriously considered during nanodevice design.

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