Catalytic Activity of Bimetallic (Ruthenium/Palladium) Nano‐alloy Decorated Porous Carbons Toward Reduction of Toxic Compounds

Veerakumar, Pitchaimani; Salamalai, Kamaraj; Dhenadhayalan, Namasivayam; Lin, King‐Chuen

doi:10.1002/asia.201900350

Cited by 42 publications

(25 citation statements)

References 85 publications

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“…Potassium ferricyanide (K 3 [Fe III (CN) 6 ]) is known to be one of the most common contaminations in polluted water, air, and soil . Considering the acute toxicity, mutagenicity, carcinogenicity, and easy accumulation in the human body, aquatic animals, and various living organisms, the reductive decontamination of K 3 [Fe III (CN) 6 ] into nontoxic K 4 [Fe II (CN) 6 ] is generally achieved by using noble metals as catalysts, such as Au or Ru . However, the high cost and low abundance of noble metals limits their widespread application rendering polyoxometalates with their promising redox properties and reversible electron gain-and-loss capacities to be interesting cost-effective electron-transfer catalysts (Scheme S1).…”

Section: Resultsmentioning

confidence: 99%

Defect {(W^VIO₇)W^VI₄} and Full {(W^VIO₇)W^VI₅} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

et al. 2021

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We report on the synthesis and characterization of three new nanosized main group V heteropolyoxotungstates K x Na y [H 2 (XW VI 9 O 33 )(W VI 5 O 12 )(X 2 W VI 29 O 103 )]· n H 2 O {X 3 W 43 } ( x = 11, y = 16, and n = 115.5 for X = Sb III ; x = 20, y = 7, and n = 68 for X = Bi III ) and K 8 Na 15 [H 16 (Co II (H 2 O) 2 ) 0.9 (Co II (H 2 O) 3 ) 2 (W VI 3.1 O 14 )(Sb III W VI 9 O 33 )(Sb III 2 W VI 30 O 106 )(H 2 O)]·53H 2 O {Co 3 Sb 3 W 42 } . On the basis of the key parameters for the one-pot synthesis strategy of {Bi 3 W 43 } , a rational step-by-step approach was developed using the known Krebs-type polyoxotungstate (POT) K 12 [Sb V 2 W VI 22 O 74 (OH) 2 ]·27H 2 O {Sb 2 W 22 } as a nonlacunary precursor leading to the synthesis and characterization of {Sb 3 W 43 } and {Co 3 Sb 3 W 42 } . Solid-state characterization of the three new representatives {Bi 3 W 43 } , {Sb 3 W 43 } , and {Co 3 Sb 3 W 42 } by single-crystal and powder X-ray diffraction (XRD), IR spectroscopy, thermogravimetric analysis (...

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Section: Resultsmentioning

confidence: 99%

Defect {(W^VIO₇)W^VI₄} and Full {(W^VIO₇)W^VI₅} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

et al. 2021

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“…The (111), (200), and (220) diffraction peaks associated with the hcp crystalline phase of Pd-Ru and the diffraction peak of (002) corresponding to the crystalline phase of the MXene are observed in the SAED pattern. 37,38 37,39,40 The lattice constants of the major diffraction peak corresponding to the (111) lattice plane were estimated by Rietveld refinement as a = 0.2117 nm and c = 0.3651 nm for the hcp Pd-Ru lattice.…”

Section: Formation Mechanism Of the Pd-ru/mxene Catalystmentioning

confidence: 99%

Highly selective etherification of fructose and 5‐hydroxymethylfurfural over a novel Pd‐Ru/MXene catalyst for sustainable liquid fuel production

Govindan

Krishnamoorthy

Hai

et al. 2021

Intl J of Energy Research

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Sustainable liquid fuel production from bio-oil compounds has attracted considerable attention in recent years. The catalytic etherification of 5-hydroxymethylfurfural (HMF) to ethoxymethylfurfural (EMF) is an effective approach for the production of liquid fuels. However, the development of high-performance and chemically stable catalysts has remained challenging.In this work, ultra-small Pd-Ru NPs were successfully immobilized on the surfaces of 2D MXene nanosheets (Pd-Ru/MXene) via fish sperm DNA-assisted microwave process. HR-TEM imaging results with SAED analysis showed that the hexagonal closed-pack (hcp) Pd-Ru NPs were grown on the surfaces of sheet-like MXene, thus enhancing the specific surface area of 117 m 2 g −1 and providing a higher density of the acid-base sites. Furthermore, Pd-Ru/MXene was employed for the etherification of HMF into EMF. The results showed that the Pd-Ru/MXene catalyst exhibited 98% EMF yield and 100% HMF conversion with the prolonged usage of catalyst for five consecutive reuse cycles.Additionally, fructose was directly converted into EMF with a higher yield of 82% over the Pd-Ru/MXene catalyst at lower reaction conditions. The recyclability test of the used Pd-Ru/MXene catalyst demonstrated its chemical stability under prolonged usage for several hours and is therefore suitable for commercial renewable liquid fuel production. Novelty Statement• The catalytic transformation of biomass into diesel-miscible biofuel is a sustainable route for liquid fuel production and has recently attracted massive attention.• The chemically stable and high-performance Pd-Ru/MXene catalyst was successfully prepared and characterized.

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“…Palladium is of great interest as dopant due to its high affinity for hydrogen and catalytic activity, [ 17 ] besides it is the most abundant noble metal on the Earth and therefore the least expensive among them. Consequently, it has been widely evaluated as an additive in carbonaceous materials [ 18 ] for catalysis [ 19–23 ] and hydrogen storage. [ 24 ] Pd nanoparticles (PdNPs) have also been assessed as active catalyst material in LiO 2 batteries, demonstrating exceptional round‐trip efficiency, specific capacity, and cycling stability.…”

Section: Introductionmentioning

confidence: 99%

Pd‐Doped Cellulose Carbon Aerogels for Energy Storage Applications

Ramirez

Zámbó

Sardella

et al. 2021

Adv Materials Inter

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In order to implement a sustainable approach in the development of carbonaceous materials with improved capacitive properties, the development of Pd‐doped cellulose carbon aerogels (CA‐PdX) is presented. Upon introducing Pd nanoparticles to the carbonaceous matrix prior to the gel formation, carbon aerogels with various Pd content are prepared. Physicochemical properties (such as texture, morphology, crystal structure, and surface chemistry) of CA‐PdX are revealed. Additionally, a comparative analysis in their electrochemical properties is performed to shed light on the effect of Pd incorporated into the matrices. It is found that Pd‐doping leads to the significant enhancement of power and energy densities (2.9‐fold and 55‐fold, respectively) compared to those of carbon aerogel without doping (CA‐Blank). The straightforward preparation method as well as the powerful control over the structure and composition pave the way toward the utilization of these hybrid materials in energy storage applications.

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Catalytic Activity of Bimetallic (Ruthenium/Palladium) Nano‐alloy Decorated Porous Carbons Toward Reduction of Toxic Compounds

Abstract: Chicken feather-derived high-surface-

Cited by 42 publications

References 85 publications

Defect {(W^VIO₇)W^VI₄} and Full {(W^VIO₇)W^VI₅} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

Defect {(W^VIO₇)W^VI₄} and Full {(W^VIO₇)W^VI₅} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

Highly selective etherification of fructose and 5‐hydroxymethylfurfural over a novel Pd‐Ru/MXene catalyst for sustainable liquid fuel production

Pd‐Doped Cellulose Carbon Aerogels for Energy Storage Applications

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Catalytic Activity of Bimetallic (Ruthenium/Palladium) Nano‐alloy Decorated Porous Carbons Toward Reduction of Toxic Compounds

Abstract: Chicken feather-derived high-surface-

Cited by 42 publications

References 85 publications

Defect {(WVIO7)WVI4} and Full {(WVIO7)WVI5} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

Defect {(WVIO7)WVI4} and Full {(WVIO7)WVI5} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

Highly selective etherification of fructose and 5‐hydroxymethylfurfural over a novel Pd‐Ru/MXene catalyst for sustainable liquid fuel production

Pd‐Doped Cellulose Carbon Aerogels for Energy Storage Applications

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Product

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Defect {(W^VIO₇)W^VI₄} and Full {(W^VIO₇)W^VI₅} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates

Defect {(W^VIO₇)W^VI₄} and Full {(W^VIO₇)W^VI₅} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates