Inkjet printing of porous nanoparticle-based catalyst layers in microchannel reactors

Lee, Seungcheol; Boeltken, Tim; Mogalicherla, Aswani K.; Gerhards, Uta; Pfeifer, Peter; Dittmeyer, Roland

doi:10.1016/j.apcata.2013.07.002

Cited by 21 publications

(17 citation statements)

References 28 publications

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“…For inkjet printing, the conditions for a jettable ink are typically described by the Z number, which is the inverse of Ohnesorge number, Oh (Eq. ):

Z = \frac{1}{O h} = \frac{R e}{\sqrt{W e}} = \frac{{true(γ ρ α true)}^{1 ∖ 2}}{η}

where Re and We are the Reynolds and Weber numbers, respectively, γ is surface tension, ρ is density of the fluid, α is inkjet nozzle diameter, and η is dynamic viscosity . By design, taking this ratio removes the velocity factor included in the original Reynolds and Weber numbers and, hence, attempts to define ink jettability irrespective of machine considerations.…”

Section: Introductionmentioning

confidence: 99%

Inkjet and Aerosol Jet Printing of Electrochemical Devices for Energy Conversion and Storage

2017

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Inkjet and aerosol jet printing have recently emerged as promising fabrication techniques for a broad range of devices for electrochemical energy conversion and storagebatteries, fuel cells, and supercapacitors. If fully realized, these printing techniques may enable device performance advantages accruing from precise micron scale patterning, thin layer deposition, and materials grading. Printing may also allow scalable, low materials waste manufacturing, and conformal integration of power elements into structural elements. This article reviews the fundamental capabilities of inkjet and aerosol jet printing relevant to electrochemical devices, surveys current literature, and presents future challenges which must be tackled to achieve high performance, printed electrochemical energy storage, and conversion devices.

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“…For inkjet printing, the conditions for a jettable ink are typically described by the Z number, which is the inverse of Ohnesorge number, Oh (Eq. ):

Z = \frac{1}{O h} = \frac{R e}{\sqrt{W e}} = \frac{{true(γ ρ α true)}^{1 ∖ 2}}{η}

Section: Introductionmentioning

confidence: 99%

Inkjet and Aerosol Jet Printing of Electrochemical Devices for Energy Conversion and Storage

2017

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“…For instance, porous alumina nanoparticles were printed precisely in microchannels as a catalyst support layer. 99 Rh/Al 2 O 3 catalyst was then prepared by impregnation of rhodium nitrate, and BET surface area of 79.7 m 2 g −1 was obtained after calcination at 600°C. Liu et al 86 used the inkjet printing assisted cooperative-assembly technique for the production of mesoporous mixed oxide catalysts.…”

Section: Porositymentioning

confidence: 99%

“…The deposited layer adhesion can also be examined during long-term reaction runs or harsh simulated environments. Dittmeyer et al 81,99 used a DOD mode to print alumina nanoparticles in stainless steel microchannels. After the drying and sintering process, the adhesion test was performed in an ultrasonic bath at 25 kHz for 10 min.…”

Section: Adhesionmentioning

confidence: 99%

“…Dittmeyer et al applied the inkjet printing technology for deposition of alumina nanoparticles as catalyst support film in microchannels. After layer deposition and calcination, Rh was doped into the support layer by impregnation 99 and used in the methane steam reforming reaction.…”

Section: Catalyst Supportmentioning

confidence: 99%

“…Dittmeyer et al 81,97,99 performed several studies on the inkjet printing of catalyst-based ink solutions in both semicircular and rectangular microchannels fabricated by wet-chemical etching method and micro-milling, respectively. The ink solutions were printed inside the channels and printing was continued to acquire a specific amount of catalyst.…”

Section: Microreactorsmentioning

confidence: 99%

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