AgPd nanoparticles supported on MIL-101 as high performance catalysts for catalytic dehydrogenation of formic acid

Dai, Hongmei; Cao, Nan; Yang, Lan; Su, Jun; Luo, Wei; Cheng, Gongzhen

doi:10.1039/c4ta02066a

Cited by 107 publications

(63 citation statements)

References 61 publications

(13 reference statements)

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“…(Astruc 2008;Ishida and Haruta 2007;Corma and Garcia 2008;Bawaked et al 2009;Haruta 1997;Stratakis and Garcia 2012;Edwards et al 2009;Wu et al 2012;Biondi et al 2011;Hashmi 2007;Bhattacharya et al 2012;Mikami et al 2013;Yan et al 2005;Tsunoyama et al 2004;Coppage et al 2013). For effective catalysis and stabilization of nanomaterials, the nanoparticles are embedded in solid supports such as metal oxides (Wei et al 2011;Zheng and Stucky 2006), metal-organic frameworks Dai et al 2014), carboneous materials (Zhang et al 2011;Tan et al 2009) etc. On the other hand, development of Au nanoparticle systems without any solid support has gained interest due to their simplicity of preparation, processability, and tunability of size and shape.…”

Section: Introductionmentioning

confidence: 99%

Catalytic activity of various pepsin reduced Au nanostructures towards reduction of nitroarenes and resazurin

2015

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Pepsin, a digestive protease enzyme, could function as a reducing as well as stabilizing agent for the synthesis of Au nanostructures of various size and shape under different reaction conditions. The simple tuning of the pH of the reaction medium led to the formation of spherical Au nanoparticles, anisotropic Au nanostructures such as triangles, hexagons, etc., as well as ultra small fluorescent Au nanoclusters. The activity of the enzyme was significantly inhibited after its participation in the formation of Au nanoparticles due to conformational changes in the native structure of the enzyme which was studied by fluorescence, circular dichroism (CD), and infra red spectroscopy. However, the Au nanoparticle-enzyme composites served as excellent catalyst for the reduction of pnitrophenol and resazurin, with the catalytic activity varying with size and shape of the nanoparticles. The presence of pepsin as the surface stabilizer played a crucial role in the activity of the Au nanoparticles as reduction catalysts, as the approach of the reacting molecules to the nanoparticle surface was actively controlled by the stabilizing enzyme.

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Section: Introductionmentioning

confidence: 99%

Catalytic activity of various pepsin reduced Au nanostructures towards reduction of nitroarenes and resazurin

2015

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“…To circumvent these issues, the development of efficient heterogeneous catalysts has received considerable attention in recent years. In recent years, heterogeneous catalysts containing Pd, including Ag-Pd core-shell, 10 monodisperse AgPd alloy nanoparticles 11 and metal organic frameworks (MOF) materials, 12,13 have been studied for catalytic dehydrogenation of formic acid. 1 Among them, Pt and Au are much more expensive than Pd.…”

Section: Introductionmentioning

confidence: 99%

AgPd nanoparticles supported on zeolitic imidazolate framework derived N-doped porous carbon as an efficient catalyst for formic acid dehydrogenation

et al. 2015

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Formic acid (FA) has tremendous potential as a safe and convenient source of hydrogen for renewable energy storage, but controlled and efficient dehydrogenation of FA by a robust solid catalyst constitutes a major challenge. In this report, a metal nanoparticle functionalized zeolitic imidazolate framework (ZIF) derived N-decorated nanoporous carbon (NPC) support was fabricated and used as an efficient FA decomposition catalyst for the first time. The resultant AgPd@NPC catalyst exhibited 100% H 2 selectivity and high catalytic activity (TOF ¼ 936 h À1 ) toward the dehydrogenation of formic acid at 353 K. The synergetic interaction between the metal nanoparticles and NPC greatly enhances the catalytic performance of the as-prepared catalyst. ; Fax: +86-312-7528292 † Electronic supplementary information (ESI) available: Calculation method of TOF, the metal mass content in the catalysts, the recyclability of the catalyst, GC analysis of the evolved gas from aqueous FA solution. See

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“…In recent years, Tedsree et al [34] developed a Ag-Pd core-shell catalyst supported on carbon based materials for dehydrogenation of formic acid resulting in a TOF of 626 h −1 although the drawback of generating CO due to the high temperature could not be avoided. A very recent research has reported that a metal-organic framework loaded with Ag-Pd alloy resulted in 100% selectivity for hydrogen generation from formic acid solution with TOF of 848 h −1 at 80 °C [35]. A wide variety of bimetallic and trimetallic Pd-based catalysts have been recently reported, e.g.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Generation from Additive-Free Formic Acid Decomposition Under Mild Conditions by Pd/C: Experimental and DFT Studies

et al. 2018

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Safe and efficient hydrogen generation and storage has received much attention in recent years. Herein, a commercial 5 wt% Pd/C catalyst has been investigated for the catalytic, additive-free decomposition of formic acid at mild conditions, and the experimental parameters affecting the process systematically have been investigated and optimised. The 5 wt% Pd/C catalyst exhibited a remarkable 99.9% H 2 selectivity and a high catalytic activity (TOF = 1136 h −1 ) at 30 °C toward the selective dehydrogenation of formic acid to H 2 and CO 2 . The present commercial catalyst demonstrates to be a promising candidate for the efficient in-situ hydrogen generation at mild conditions possibiliting practical applications of formic acid systems on fuel cells. Finally DFT studies have been carried out to provide insights into the reactivity and decomposition of formic acid along with the two-reaction pathways on the Pd (111) surface.

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AgPd nanoparticles supported on MIL-101 as high performance catalysts for catalytic dehydrogenation of formic acid

Cited by 107 publications

References 61 publications

Catalytic activity of various pepsin reduced Au nanostructures towards reduction of nitroarenes and resazurin

Catalytic activity of various pepsin reduced Au nanostructures towards reduction of nitroarenes and resazurin

AgPd nanoparticles supported on zeolitic imidazolate framework derived N-doped porous carbon as an efficient catalyst for formic acid dehydrogenation

Hydrogen Generation from Additive-Free Formic Acid Decomposition Under Mild Conditions by Pd/C: Experimental and DFT Studies

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