Lanthanum doping for longevity of alumina catalyst bed in hydrogen peroxide thruster

Kang, Shinjae; Lee, Dahae; Kwon, Sejin

doi:10.1016/j.ast.2015.07.003

Cited by 31 publications

(3 citation statements)

References 15 publications

(18 reference statements)

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“…[23][24][25][26][27][28] A similarly large group has investigated manganese dioxide (MnO 2 ) supported on alumina or titanium dioxide. [29][30][31][32][33][34][35] Results are often conflicting. For example, Pirault-Roy et al, 35 performed several tests on the activity of silver, platinum, and manganese dioxide and found that silver had the highest reactivity with hydrogen peroxide, followed by manganese dioxide, and finally platinum.…”

Section: Development Of Alternative Catalysts For Hydrogen Peroxide Dmentioning

confidence: 99%

Catalyst development for an arc-ignited hydrogen peroxide/ABS hybrid rocket system

Whitmore¹,

Martinez²,

Merkley³

2018

AAOAJ

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The authors have collaborated with an industry partner to develop a prototype upper stage for a dedicated nano-launch vehicle. In addition to providing sufficient impulse for orbit insertion, the unique motor system also provides capability for multiple restarts; allowing operation as an orbital maneuvering thruster. The hybrid motor design uses 85%-90% hydrogen peroxide solution and 3-D printed ABS (acrylonitrilebutadiene-styrene) as propellants. In the original system design the peroxide catalyst bed was completely removed and a patented arc-ignition system thermally ignited the propellants. The thermal ignition system was effective but resulted in a combustion latency of approximately 1-second, reducing overall performance and allowing for significant variability in the delivered total impulse. This work investigates whether adding a small catalyst pack for ignition augmentation can eliminate or significantly reduce the observed ignition latency and improve overall system performance. The effectiveness of multiple catalytic minerals including potassium permanganate, manganese dioxide, manganese (III) oxide, and potassium nitrate were examined and compared to traditional noble-metal catalyst materials like silver or platinum. These alternative materials are significantly less expensive than noble metals. Catalytic activity test results, designs for an augmentation catbed integrated with the thermal ignition system, and preliminary unaugmented and augmented hot-fire test results are presented. Aeronautics and Aerospace Open Access Journal Research Article Open AccessCatalyst development for an arc-ignited hydrogen peroxide/ABS hybrid rocket system 357

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Section: Development Of Alternative Catalysts For Hydrogen Peroxide Dmentioning

confidence: 99%

Catalyst development for an arc-ignited hydrogen peroxide/ABS hybrid rocket system

Whitmore¹,

Martinez²,

Merkley³

2018

AAOAJ

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“…Regarding lanthanum-based catalysts, Garbarino et al have reported that the impregnation of La 2 O 3 into Al 2 O 3 improves the mechanical strength [30,31] and stabilizes the structure, avoiding its sintering [30,32]. These authors obtained a large amount of ethylene while the diethyl ether formed is converted to ethylene and H 2 O, which is promoted by the presence of Lewis acid sites [30].…”

Section: Introductionmentioning

confidence: 99%

On the Selective Transformation of Ethanol Over Mg- And/Or La-Containing Mixed Oxides Catalysts

Ballesteros‐Plata

Balestra

Cecilia

et al. 2023

Preprint

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“…For example, in yttria-stabilized zirconia, ceramic honeycombs with manganese oxides as the active phase have been reported to have decomposition efficiencies exceeding 90% [ 59 ]. Similarly, the performance of lanthanum doped alumina catalyst supports was investigated in a high concentration hydrogen peroxide monopropellant thruster [ 60 ]. Silica-doped alumina-supported catalyst containing manganese oxide and cobalt oxide has been reported to be an ideal active phase combination for the decomposition of 98% peroxide [ 47 ].…”

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confidence: 99%

Oxygen Generation Using Catalytic Nano/Micromotors

Naeem

Mujtaba

et al. 2021

Micromachines

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Gaseous oxygen plays a vital role in driving the metabolism of living organisms and has multiple agricultural, medical, and technological applications. Different methods have been discovered to produce oxygen, including plants, oxygen concentrators and catalytic reactions. However, many such approaches are relatively expensive, involve challenges, complexities in post-production processes or generate undesired reaction products. Catalytic oxygen generation using hydrogen peroxide is one of the simplest and cleanest methods to produce oxygen in the required quantities. Chemically powered micro/nanomotors, capable of self-propulsion in liquid media, offer convenient and economic platforms for on-the-fly generation of gaseous oxygen on demand. Micromotors have opened up opportunities for controlled oxygen generation and transport under complex conditions, critical medical diagnostics and therapy. Mobile oxygen micro-carriers help better understand the energy transduction efficiencies of micro/nanoscopic active matter by careful selection of catalytic materials, fuel compositions and concentrations, catalyst surface curvatures and catalytic particle size, which opens avenues for controllable oxygen release on the level of a single catalytic microreactor. This review discusses various micro/nanomotor systems capable of functioning as mobile oxygen generators while highlighting their features, efficiencies and application potentials in different fields.

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Lanthanum doping for longevity of alumina catalyst bed in hydrogen peroxide thruster

Cited by 31 publications

References 15 publications

Catalyst development for an arc-ignited hydrogen peroxide/ABS hybrid rocket system

Catalyst development for an arc-ignited hydrogen peroxide/ABS hybrid rocket system

On the Selective Transformation of Ethanol Over Mg- And/Or La-Containing Mixed Oxides Catalysts

Oxygen Generation Using Catalytic Nano/Micromotors

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