Shape-controlled synthesis of Mn<sub>2</sub>O<sub>3</sub>hollow structures and their catalytic properties

Dong, Ruiting; Wang, Honglei; Zhang, Quan; Xu, Xuetang; Wang, Fan; Li, Bin

doi:10.1039/c5ce01173f

Cited by 26 publications

(8 citation statements)

References 55 publications

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“…4 can also appear because they are very sensitive to the stoichiometry of reactant elements in their synthesis at the heating and cooling rates. The reason behind for increases the catalytic activity due to an improved specific surface area, lattice oxygen mobility and pore volume of the catalysts (Automobile and carbon monoxide, n.d.; Dey et al, 2017a;Dey et al, 2017b;Dey et al, 2017c;Dey et al, 2017d;Dey et al, 2018a;Dong et al, 2015;Dey et al, 2018b;Singh & Prasad, 2014;Solsona et al, 2004;Toyoshima et al, 2013;Goodman et al, 2007; (Cotton, 2013) 2009; Adeyemo et al, 2011;Teoh et al, 2015;Chen & Lin, 2015;Cominos et al, 2005;Snytnikov et al, 2003;Nehasil et al, 1996;Zhang et al, 2014;Hebben et al, 2010;Gao et al, 2013;Hulteberg et al, 2005;Wong et al, 2014;Dulaurent et al, 2000;Jung et al, 2007;Nishibayashi et al, 1997;Goerke et al, 2004;Brewster et al, 2014;Piccolo et al, 2016;Dey & Dhal, 2020a;Filot et al, 2011;Saadatjou et al, 2014;Song et al, 2004;Olveira et al, 2014).…”

Section: Characteristics and Structure Of Rhodium Nanocatalystsmentioning

confidence: 99%

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Applications of Rhodium and Ruthenium Catalysts for CO Oxidation: an Overview

Dey

Dhal

2020

Polytechnica

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The rhodium (Rh) and ruthenium (Ru) are very important catalytic materials in various oxidation reactions. It is the best monometallic catalyst for oxidation of carbon monoxide (CO) and practically used in residential catalytic converters. These catalysts are active for CO oxidation at a low temperature. The activity of Ru/Rh catalysts is strongly dependent on the surface area, pore volume and textural properties of designed catalysts. It could be used as an ideal candidate not only for automobile industry through the cross-coupling reactions but also for low-temperature catalytic oxidation of CO. The chemisorptions of CO over Ru/Rh catalysts and supported catalysts were studied in this review. These studies will provide the scientific basis for future design of Ru/Rh oxidation catalysts. Both Ru and Rh are minor metals and supply risk often increases the price. However, the performance improved and cost-reduced nanoparticles of Rh/Ru system are reviewed by this work.

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Section: Characteristics and Structure Of Rhodium Nanocatalystsmentioning

confidence: 99%

“…The noble metals, base metals and metal oxide are highly used as a catalyst in the catalytic converter. The noble metal catalysts have a high activity and thermal stability (Dong et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Applications of Rhodium and Ruthenium Catalysts for CO Oxidation: an Overview

Dey

Dhal

2020

Polytechnica

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“…Manganese oxides emerge as a sort of popular catalyst for oxidation and reduction reactions in industries . This is mainly ascribed to the multiple valence states of Mn (2 + , 3 + , 4 + , 6 + , and 7 + ) in MnO x , which has more than 20 polymorphs in terms of the multivalent Mn oxidation states and nonstoichiometric compositions .…”

Section: Precursor‐based Synthetic Strategies Of Porous Colloidal Parmentioning

confidence: 99%

“…Dong et al. developed a shape‐controlled synthesis method to achieve Mn‐carbonates . The Mn‐carbonate precursors were synthesized by mixing KMnO 4 and glucose in hydrothermal reaction, which were transformed to Mn 2 O 3 hollow structures by annealing in air at 550 °C.…”

Section: Precursor‐based Synthetic Strategies Of Porous Colloidal Parmentioning

confidence: 99%

Precursor‐Based Synthesis of Porous Colloidal Particles towards Highly Efficient Catalysts

Zheng

Geng

Zhang

et al. 2018

Chemistry A European J

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In recent years, porous colloidal particles have found promising applications in catalytic fields, such as photocatalysis, electrocatalysis, industrial and automotive byproducts removal, as well as biomass upgrading. These applications are critical for alleviating the energy crisis and environmental pollution. Porous colloidal particles have remarkable specific areas and abundant reactive sites, which can significantly improve the mass/charge transport and reaction rate in catalysis. Precursor-based synthesis is among the most facile and widely-adopted methods to achieve monodisperse and homogeneous porous colloidal particles. In the current review, we briefly introduce the general catalytic applications of porous colloidal particles. The conventional precursor-based methods are reviewed to design state-of-the-art porous colloidal particles as highly efficient catalysts. The recent development of porous colloidal particles derived from metal-organic frameworks (MOFs), glycerates, carbonate precursors, and ion exchange methods are reviewed. In the end, the current concerns and future development of porous colloidal particles are outlined.

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“…A variety of CO oxidation catalysts are investigated in this era, but the majority of them have problems associated with the deactivation in the presence of moisture, cost-effectiveness, lower stability, poison resistance, and availability in the world (Dong et al 2015). The metal oxide catalyst with different oxidation states of metal ions or supported platinum group metal catalysts represent better catalytic performance for CO oxidation at ambient temperature, but its stability is lower and activity fast declines with time on the stream (Dey et al 2017e).…”

Section: Introductionmentioning

confidence: 99%

Highly Active Palladium Nanocatalysts for Low-Temperature Carbon Monoxide Oxidation

Dey

Dhal

2019

Polytechnica

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The noble metal catalysts are most commonly considered to be used in an automobile as a catalytic converter. Palladium (Pd) is a highly active catalyst for carbon monoxide (CO) oxidation in platinum group metals. It is very active for low-temperature CO oxidation if dispersed on suitable metal oxides and composite oxides. The oxidized Pd metal nanocatalyst has been applied more actively than the completely reduced particles. The performance of Pd oxide nanocatalysts strongly depends upon the surface structure, number of active sites and various Pd-O interactions. Palladium is an ideal catalyst not only for the automobile industry through cross-coupling reactions but also for low-temperature catalytic oxidation of CO. The Pd metal is more resistant for sulfur and potassium poisoning, and they are chemically sensitive and degraded rapidly in the presence of fuel impurities. The higher activity of Pd nanocatalyst was attributed to the small particle size and higher dispersion over Pd support. The chemisorptions of CO on Pd catalysts were studied in this review. The results obtained from this study will provide the scientific basis for the future design of Pd-based oxidation catalysts.

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Shape-controlled synthesis of Mn₂O₃hollow structures and their catalytic properties

Cited by 26 publications

References 55 publications

Applications of Rhodium and Ruthenium Catalysts for CO Oxidation: an Overview

Applications of Rhodium and Ruthenium Catalysts for CO Oxidation: an Overview

Precursor‐Based Synthesis of Porous Colloidal Particles towards Highly Efficient Catalysts

Highly Active Palladium Nanocatalysts for Low-Temperature Carbon Monoxide Oxidation

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Shape-controlled synthesis of Mn2O3hollow structures and their catalytic properties

Cited by 26 publications

References 55 publications

Applications of Rhodium and Ruthenium Catalysts for CO Oxidation: an Overview

Applications of Rhodium and Ruthenium Catalysts for CO Oxidation: an Overview

Precursor‐Based Synthesis of Porous Colloidal Particles towards Highly Efficient Catalysts

Highly Active Palladium Nanocatalysts for Low-Temperature Carbon Monoxide Oxidation

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Product

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Shape-controlled synthesis of Mn₂O₃hollow structures and their catalytic properties