In situ IR studies of Co and Ce doped Mn/TiO2 catalyst for low-temperature selective catalytic reduction of NO with NH3

Qiu, Lirong; Pang, Dandan; Zhang, Changliang; Meng, Jiaojiao; Zhu, Rongshu; Ouyang, Feng

doi:10.1016/j.apsusc.2015.08.259

Cited by 93 publications

(32 citation statements)

References 38 publications

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“…Adsorption proceeds through as econd step since another band develops at 1260 cm À1 ,w hich was assigned to chelating nitrites. [38,39] Unlike the previous bands,t his one slowly increased over the first 200 minutes,a nd continued growing steadily for up to 24 hours.Aslight development of the band at ca. 3300 cm À1 was also observed, while the bands at 1210 and 3580 cm À1 were progressively decreasing in parallel, with at rend similar to that of the band at 1260 cm À1 ( Figure S5).…”

Section: Angewandte Chemiementioning

confidence: 69%

“…These modifications are associated with an initial decrease of the band at 3580 cm −1 and the development of a broad band around 3300 cm −1 implying the involvement of the hydroxyl species and its perturbation (or even shift, in the form of adsorbed water molecules) in this first step, to allow nitrite formation. Adsorption proceeds through a second step since another band develops at 1260 cm −1 , which was assigned to chelating nitrites . Unlike the previous bands, this one slowly increased over the first 200 minutes, and continued growing steadily for up to 24 hours.…”

Section: Resultsmentioning

confidence: 88%

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Tuning Cellular Biological Functions Through the Controlled Release of NO from a Porous Ti‐MOF

et al. 2020

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Materials for the controlled release of nitric oxide (NO) are of interest for therapeutic applications. However, to date, many suffer from toxicity and stability issues, as well as poor performance. Herein, we propose a new NO adsorption/release mechanism through the formation of nitrites on the skeleton of a titanium‐based metal–organic framework (MOF) that we named MIP‐177, featuring a suitable set of properties for such an application: (i) high NO storage capacity (3 μmol mg−1solid), (ii) excellent biocompatibility at therapeutic relevant concentrations (no cytotoxicity at 90 μg mL−1 for wound healing) due to its high stability in biological media (<9 % degradation in 72 hours) and (iii) slow NO release in biological media (≈2 hours for 90 % release). The prospective application of MIP‐177 is demonstrated through NO‐driven control of mitochondrial respiration in cells and stimulation of cell migration, paving the way for the design of new NO delivery systems for wound healing therapy.

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Section: Angewandte Chemiementioning

confidence: 69%

Section: Resultsmentioning

confidence: 88%

Tuning Cellular Biological Functions Through the Controlled Release of NO from a Porous Ti‐MOF

et al. 2020

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“…All the catalysts exclusively exhibit the characterization adsorption peaks of NH 3 coordinated on Lewis acid sites (around 1610 and 1190 cm -1 )[42,43]. Meanwhile, the intensity of the NH 3 bands for Mn-Fe/CeZr, Mn-Co/CeZr and Mn-Ni/CeZr increased as compared to Mn/CeZr, while the intensity for Mn-Cu/CeZr decreased.…”

mentioning

confidence: 81%

In situ DRIFTs investigation of the reaction mechanism over MnOx-MOy/Ce0.75Zr0.25O2 (M = Fe, Co, Ni, Cu) for the selective catalytic reduction of NOx with NH3

Zha

et al. 2016

Applied Surface Science

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“…( 3 and Mn(NO 3 ) 2 solution. The solution was stirred on an automatic mixer about a hour, to insure Mn-and Ce-to be adhered on TiO 2 surface.…”

Section: Reductant and Reactionmentioning

confidence: 99%

“…As power plants are mainly responsible for the excessive NOx emissions, appropriate measures should be taken to reduce them. SCR or NH 3 -SCR (Selective catalytic reduction of NOx with NH 3 ) is the most popular method to solve excessive NOx emissions problem [3] [4].…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on NH3-SCR Performance of Mn-Ce/TiO2 Catalyst

Xu¹,

Wang²,

Yang³

et al. 2016

Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnolog

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Abstract. NO X pollutions affect our social manufacture and human being living, which has caused the extensive attention. NH 3 -SCR (selective catalytic reduction) has been largely studied to reduce NO X pollution. Most people focus on catalysts under N 2 and inert gases atmosphere, while few people research on the study of CO 2 as balance gas on oxy-fuel combustion condition. In this work, TiO 2 served as Mn-and Ce-support. The experiments were performed under CO 2 and N 2 atmosphere respectively. The results showed that CO 2 could inhibit NO conversion. The molar ratio of NH 3 to NO at 1.2:1 obtained a better NO conversion with Mn-Ce/TiO 2 catalyst.

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In situ IR studies of Co and Ce doped Mn/TiO2 catalyst for low-temperature selective catalytic reduction of NO with NH3

Cited by 93 publications

References 38 publications

Tuning Cellular Biological Functions Through the Controlled Release of NO from a Porous Ti‐MOF

Tuning Cellular Biological Functions Through the Controlled Release of NO from a Porous Ti‐MOF

In situ DRIFTs investigation of the reaction mechanism over MnOx-MOy/Ce0.75Zr0.25O2 (M = Fe, Co, Ni, Cu) for the selective catalytic reduction of NOx with NH3

Experimental Research on NH3-SCR Performance of Mn-Ce/TiO2 Catalyst

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