Pd/NH2-KIE-6 catalysts with exceptional catalytic activity for additive-free formic acid dehydrogenation at room temperature: Controlling Pd nanoparticle size by stirring time and types of Pd precursors

Jin, Min Ho; Park, Ju Hyoung; Oh, Duckkyu; Lee, Sung Wook; Park, Jong Soo; Lee, Kwan Young; Lee, Dong Hoon

doi:10.1016/j.ijhydene.2017.10.117

Cited by 36 publications

(10 citation statements)

References 54 publications

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“…The surface O content of and Pd/C PS -ZnCl 2 and Pd/C MS -ZnCl 2 increased by 63% and 55%, respectively, after ZnCl 2 activation. Previous studies have showed that the oxygencontaining functional group on the surface of the support can be used as the nucleation point of metal particles to promote the interaction between the support and metal particles so as to form smaller nanoparticles [43,44]. Compared with Pd/C MS (7.33 at%), activated MS -ZnCl 2 had more O2 and O3 contents (11.71 at%).…”

Section: Catalyst Characterization Resultsmentioning

confidence: 99%

Facile Synthesis of Microporous Carbons from Biomass Waste as High Performance Supports for Dehydrogenation of Formic Acid

Cao

Cheng

et al. 2021

Nanomaterials

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Formic acid (FA) is found to be a potential candidate for the storage of hydrogen. For dehydrogenation of FA, the supports of our catalysts were acquired by conducting ZnCl2 treatment and carbonation for biomass waste. The texture and surface properties significantly affected the size and dispersion of Pd and its interaction with the support so as to cause the superior catalytic performance of catalysts. Microporous carbon obtained by carbonization of ZnCl2 activated peanut shells (CPS-ZnCl2) possessing surface areas of 629 m2·g−1 and a micropore rate of 73.5%. For ZnCl2 activated melon seed (CMS-ZnCl2), the surface area and micropore rate increased to 1081 m2·g−1 and 80.0%, respectively. In addition, the introduction of ZnCl2 also caused the increase in surface O content and reduced the acidity of the catalyst. The results represented that CMS-ZnCl2 with uniform honeycomb morphology displayed the best properties, and the as-prepared Pd/CMS-ZnCl2 catalyst afforded 100% hydrogen selectivity as well as excellent catalytic activity with an initial high turnover number (TON) value of 28.3 at 30 °C and 100.1 at 60 °C.

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Section: Catalyst Characterization Resultsmentioning

confidence: 99%

Facile Synthesis of Microporous Carbons from Biomass Waste as High Performance Supports for Dehydrogenation of Formic Acid

Cao

Cheng

et al. 2021

Nanomaterials

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“…Notably, the TOF value of primary amine‐functionalized Pd@SBA‐15 catalyst showed about two‐ and fivefold improvement than that of secondary amine‐functionalized Pd@SBA‐15 and tertiary‐functionalized Pd@SBA‐15, respectively, due to the electronic and steric effects between amine groups and Pd NPs as well as the changes of hydrophilicity/hydrophobicity of SBA‐15. Besides the SBA‐15, other types of mesoporous silica, such as KIE‐6, [ 71,73,74 ] KIE‐11, [ 75 ] MCM‐41, [ 72 ] and KCC‐1, [ 85 ] and periodic mesoporous organosilica [ 76 ] were also used as supports to anchor metal NPs for the FA dehydrogenation.…”

Section: Catalytic Hydrogen Generation From Liquid‐phase Chemical Hydmentioning

confidence: 99%

Nanopore‐Supported Metal Nanocatalysts for Efficient Hydrogen Generation from Liquid‐Phase Chemical Hydrogen Storage Materials

et al. 2020

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“…At the same time, the strong interaction between the support and the active components could promote the electron transfer, thus improving the catalytic performance. Carbon materials, − zeolites, TiO 2 , SiO 2 , , and metal–organic frameworks (MOFs) , have been successfully used as supports of FA dehydrogenation catalysts. Several researchers have pointed out that abundant tri-s-triazine groups in the networks of g-C 3 N 4 could serve as anchoring sites and help to stabilize and disperse metal particles. , Navlani-García et al demonstrated that PdCo catalysts supported on graphitic carbon nitride showed enhanced FA dehydrogenation activity by virtue of g-C 3 N 4 in assisting the formation of small and dispersed NPs .…”

Section: Introductionmentioning

confidence: 99%

Schiff Base Conjugated Carbon Nitride-Supported PdCoNi Nanoparticles for Enhanced Formic Acid Dehydrogenation

Chen

et al. 2021

Ind. Eng. Chem. Res.

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An effective and low-cost nanocatalyst is designed for formic acid (FA) dehydrogenation to boost practical applications. Herein, we report superior PdCoNi nanoparticles (NPs) supported on Schiff base conjugated carbon nitride, which exhibits excellent catalytic performance with a turnover frequency (TOF) of 1308 h −1 on FA decomposition to hydrogen at room temperature. The results show that the Schiff base groups grafted on the carbon nitride support contribute to providing abundant conjugated active sites for anchoring metal, leading to the formation of ultrafine and well-dispersed PdCoNi NPs (1.70 nm) with electron-rich Pd species, which are responsible for the outstanding catalytic activity. The conjugated Schiff base can also facilitate the O−H bond dissociation on FA, which further promotes the decomposition of FA. This low-cost and high-performance palladiumbased catalyst is conducive to the development of composite catalysts on FA dehydrogenation.

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Pd/NH2-KIE-6 catalysts with exceptional catalytic activity for additive-free formic acid dehydrogenation at room temperature: Controlling Pd nanoparticle size by stirring time and types of Pd precursors

Cited by 36 publications

References 54 publications

Facile Synthesis of Microporous Carbons from Biomass Waste as High Performance Supports for Dehydrogenation of Formic Acid

Facile Synthesis of Microporous Carbons from Biomass Waste as High Performance Supports for Dehydrogenation of Formic Acid

Nanopore‐Supported Metal Nanocatalysts for Efficient Hydrogen Generation from Liquid‐Phase Chemical Hydrogen Storage Materials

Schiff Base Conjugated Carbon Nitride-Supported PdCoNi Nanoparticles for Enhanced Formic Acid Dehydrogenation

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