An effective and stable Ni2P/TiO2 catalyst for the hydrogenation of dimethyl oxalate to methyl glycolate

Chen, Hongmei; Tan, Jingjing; Zhu, Yulei; Li, Yongwang

doi:10.1016/j.catcom.2015.10.010

Cited by 27 publications

(36 citation statements)

References 31 publications

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“…The selective hydrogenation of DMO was performed on a stainless fixed-bed reactor (300 mm length by 8 mm inner diameter) using methanol-DMO (13 wt %) feedstock as described in detail elsewhere. 27 The same Ni 3 P/meso-SiO 2 catalyst as employed in the above characterizations (24−60 meshes; 0.5 g) was loaded into a stainless tubular reactor and reduced again to remove the passivated layer in a H 2 flow (30 mL min −1 ) at 600 °C for 2 h. The products were collected in a condenser (−5 °C) and analyzed using a Shimadzu 2014C gas chromatography-flame ionization detector (GC-FID) with a 30 m HP-INNOWax capillary column (DIMKA). DMO conversion and product selectivity were defined as follows…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

“…The acidity of TiO 2 support is the main cause for so much MA formation. 27 More recently, our research group reported an Ni 3 P/Nifoam that achieves almost full DMO conversion with >95% selectivity and is stable for at least 1000 h in the DMO-to-MG process. 28 Kinetic study and density functional theory (DFT) calculations revealed that the Ni 3 P/Ni-foam is much more active for the DMO-to-MG process than for the MG hydrogenation to EG, in comparison with the Ni 2 P/Ni-foam.…”

Section: ■ Introductionmentioning

confidence: 98%

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High-Performance Ni₃P/meso-SiO₂ for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

Zhao

et al. 2021

ACS Sustainable Chem. Eng.

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Three meso-SiO 2 (RB-MSN, HMS, and MCM-41) supported Ni 3 P catalysts to be used in gas-phase hydrogenation of dimethyl oxalate (DMO) to methyl glycolate (MG) are prepared via the impregnation method and subsequent H 2 -reduction treatment. The as-obtained catalysts show interesting meso-SiO 2type-dependent reactivity for this reaction, which is tightly linked with the support Si−OH amount rather than the support textural/ structural properties and Ni 3 P grain size. The Ni 3 P/RB-MSN outperforms the two others, being capable of fully converting DMO with 85.0% MG selectivity and being stable for at least 500 h under mild conditions. The turnover frequency and E a of such a catalyst for this reaction are calculated to be 204.2 h −1 and 84.0 kJ mol −1 . Lack of Si−OH in RB-MSN diminishes the interaction of NiO and PO x with Si−OH groups, thereby not only enabling NiO and PO x to be easily and fully reduced to form Ni 3 P but also suppressing the formation of harmful irreducible PO x species.

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Section: ■ Experimental Sectionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 98%

High-Performance Ni₃P/meso-SiO₂ for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

Zhao

et al. 2021

ACS Sustainable Chem. Eng.

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“…Thus, the development of a green synthetic method with high efficiency is warranted. The synthesis of MG by catalytic hydrogenation of dimethyl oxalate (DMO) has been proposed as a more economical and environmentally friendly route compared with other catalytic procedures [ 2 , 3 , 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Ni-Modified Ag/SiO2 Catalysts for Selective Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

et al. 2022

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Ni-modified Ag/SiO2 catalysts containing 0~3 wt.% Ni were obtained by impregnating Ni species onto Ag/SiO2 followed by calcination and reduction. The catalysts’ performance in the hydrogenation of dimethyl oxalate (DMO) to methyl glycolate (MG) was tested. Ag-0.5%Ni/SiO2 showed the highest catalytic activity among these catalysts and exhibited excellent catalytic stability. The effects of the Ni content on the structure and surface chemical states of catalysts were investigated by XRF, N2-sorption, XRD, TEM, EDX-mapping, FT-IR, H2-TPR, UV–vis, and XPS. The better catalytic activity and stability of Ni-modified Ag/SiO2 (versus Ag/SiO2) are ascribed to the improved dispersion of active Ag species as well as the higher resistance to the growth of Ag particles due to the presence of Ni species.

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“…Much attention is currently focused on studying the possibility of using nickel phosphides in the field of heterogeneous catalysis in biomass hydrotreating reactions. Namely, nickel phosphides Ni 3 P, Ni 12 P 5 , Ni 2 P and Ni 5 P 4 are promising catalysts for hydrodeoxygenation [8][9][10], hydrodesulfurization [11][12][13][14][15][16] and other hydrogenation processes [17][18][19][20], due to their higher activity and stability compared to catalysts based on purely metallic Ni.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Composition Study of Electrochemically Deposited Ni-P Coating with Increased Surface Area

et al. 2021

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Nickel phosphides NixPy are a promising family of binary compounds that have shown much promise in various fields of technology, including energy storage, light absorption and heterogeneous catalysis in the reactions of biomass hydrogenation. The performance of NixPy-containing materials depends greatly on their morphology and phase composition and, in turn, on the synthesis technique. In this work, we have employed the electroplating approach to synthesize a Ni-P coating, which was treated with nitric acid in order to develop its surface area and enrich it with phosphorus. We have employed scanning electron microscopy, X-ray diffraction and 31P nuclear magnetic resonance techniques to characterize the particles separated from the coating with ultrasound for the convenience of the study. According to experimental data, the obtained powder contained a mixture of Ni3P and phosphorus oxides, which transformed into nickel phosphide phases richer with phosphorus, such as Ni5P2 and Ni12P5, after treatment at elevated temperatures. Thus, we have demonstrated that electroplating followed by acid treatment is a feasible approach for the synthesis of Ni-P coatings with increased surface area and variable phase composition.

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An effective and stable Ni2P/TiO2 catalyst for the hydrogenation of dimethyl oxalate to methyl glycolate

Cited by 27 publications

References 31 publications

High-Performance Ni₃P/meso-SiO₂ for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

High-Performance Ni₃P/meso-SiO₂ for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

Ni-Modified Ag/SiO2 Catalysts for Selective Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

Synthesis and Composition Study of Electrochemically Deposited Ni-P Coating with Increased Surface Area

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An effective and stable Ni2P/TiO2 catalyst for the hydrogenation of dimethyl oxalate to methyl glycolate

Cited by 27 publications

References 31 publications

High-Performance Ni3P/meso-SiO2 for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

High-Performance Ni3P/meso-SiO2 for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

Ni-Modified Ag/SiO2 Catalysts for Selective Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

Synthesis and Composition Study of Electrochemically Deposited Ni-P Coating with Increased Surface Area

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High-Performance Ni₃P/meso-SiO₂ for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate

High-Performance Ni₃P/meso-SiO₂ for Gas-Phase Hydrogenation of Dimethyl Oxalate to Methyl Glycolate