Mesoporous alumina with high capacity for carbon monoxide adsorption

Yeom, Changjoo; Kim, Younghun

doi:10.1007/s11814-017-0309-5

Cited by 15 publications

(18 citation statements)

References 21 publications

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“…No CO uptake or measures of selectivity were reported. Further CO adsorption studies of mesoporous alumina have also focussed on CO removal, 65 while most studies have featured alumina for catalytic purposes. [66][67][68]…”

Section: Activated Aluminamentioning

confidence: 99%

The use of metal–organic frameworks for CO purification

2018

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Metal organic frameworks (MOFs) as adsorbents present a potentially cost effective and energy saving alternative to current technologies used to purify carbon monoxide (CO), a reagent in numerous industrial processes. This review compares the different mechanisms involved in CO adsorption in MOFs, highlighting the desired chemical and structural features for this process. An outlook on future directions for research on MOFs for CO adsorption is proposed.

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Section: Activated Aluminamentioning

confidence: 99%

The use of metal–organic frameworks for CO purification

2018

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“…Table 4 gives adsorption capacity, adsorption efficiency, inlet gas concentration, and concentration at the saturation level of CO gas adsorption results on Al 2 O 3 /Pd(NO 3 ) 2 /zeolite film. According to Table 5, by comparing with other published articles, the results indicate that adsorption capacity of Al 2 O 3 /Pd(NO 3 ) 2 /zeolite composite film is higher than Ze, Si, AC, Pd/Si and Pd/AC adsorbents, and lower than MA and Pd/MA adsorbents [20].…”

Section: Adsorption Of Comentioning

confidence: 74%

“…Various types of porous materials have been applied for CO capture, and it is still full of challenges. Surface properties of porous adsorbents such as well thickness, surface area, and pore-size distribution make their applications increased significantly [9][10][11][12][13][14][15] including nanoporous materials such as metal-organic frameworks (MOFs) [16,17], mesoporous alumina (MA) [18,19], and mesoporous silica (MS) [20,21] which are known as an alternative to other commercial adsorbents such as zeolite and activated carbon [22,23].…”

Section: Introductionmentioning

confidence: 99%

Investigation of carbon monoxide gas adsorption on the Al2O3/Pd(NO3)2/zeolite composite film

et al. 2019

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In this study, Al 2 O 3 /Pd(NO 3) 2 /zeolite composite films have been fabricated by roll coating method and characterized by X-ray diffraction, energy-dispersive X-ray spectroscopy and field emission scanning electron microscopy. The gas adsorption was tested in an experimental setup by a continuous gas analyzer KIMO KIGAZ 210 at constant temperature and pressure (32 °C and 1.5 bar) and as a function of reaction time (s). The inlet CO gas concentration was 150 mg L −1 , and the saturation level of CO gas concentration was 5 mg L −1. The maximum adsorption capacity (q max) and maximum adsorption efficiency (%) were calculated as 111.16 mg g −1 and 97%, respectively. Pseudo-first-order, pseudo-second-order, and intra-particle diffusion models were investigated to kinetic study of CO adsorption on Al 2 O 3 /Pd(NO 3) 2 /zeolite adsorbents. Results indicated that CO adsorption follows the pseudo-second-order model well according to regression coefficient value (R 2 = 0.98), and the value of pseudo-second-order rate constant of adsorption was obtained as 2 × 10 −5 g mg −1 s −1. According to the intra-particle diffusion model, adsorption is affected by only one process. So, adsorption of CO by Al 2 O 3 /Pd(NO 3) 2 /zeolite adsorbent indicated an effective adsorption by obtained results.

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“…However, its disadvantages such as lack of low thermal and mechanical stability rather than other materials should not be ignored [6]. Recently, varieties of nonporous including metal-organic frameworks (MOFs) [20][21][22][23], mesoporous alumina (MA) [24,25], and mesoporous silica (MS) [26,27] have been used for detection and adsorption of toxic gases, and are regarded as alternatives to commercial adsorbents [28,29]. Metal-organic frameworks (MOFs) are confirmed to be a significant adsorbent due to its unique properties such as large specific surface area, ultra-high porosities, controllable architectures, and low density [30,31].…”

Section: Introductionmentioning

confidence: 99%

A new kinetic models analysis for CO adsorption on palladium zeolite nanostructure by roll-coating technique

Mozaffari

Mirzahosseini

Mozaffari

2020

Anal. Method Environ. Chem. J.

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The aim of this article was the fabrication of Al2O3/Pd(NO3)2/zeolite adsorbent through roll-coating technique for CO gas adsorption. Transmission electron microscopy (TEM), field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and energy-dispersive x-ray spectroscopy (EDX) were performed to investigate the morphological, structural, and elemental properties of Al2O3/Pd(NO3)2/zeolite adsorbent. A continuous gas analyzer KIMO KIGAZ 210 was applied for testing CO gas adsorption on as-present adsorbent in an experimental set-up. The calculated amounts of adsorption capacity at equilibrium time was 111.16 mg g-1 according to the previous published article. The Elovich, Avrami, and Fractional power kinetic models were studied for this adsorbent. The equal value of experimental and theoretical adsorption capacity at equilibrium time as well as the unit value of regression coefficient indicate that Avrami kinetic model was a suitable model to describe Co removal through Al2O3/Pd(NO3)2/zeolite adsorbent.

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Mesoporous alumina with high capacity for carbon monoxide adsorption

Cited by 15 publications

References 21 publications

The use of metal–organic frameworks for CO purification

The use of metal–organic frameworks for CO purification

Investigation of carbon monoxide gas adsorption on the Al2O3/Pd(NO3)2/zeolite composite film

A new kinetic models analysis for CO adsorption on palladium zeolite nanostructure by roll-coating technique

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