Synthesis of ordered porous zirconia containing sulfate ions and evaluation of its surface acidic properties

Haneda, Masaaki; Takamura, Kenji; Doi, Yasuyuki; Bion, Nicolas; Vivier, L.

doi:10.1007/s10853-017-0820-4

Cited by 16 publications

(5 citation statements)

References 55 publications

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“…This comparison agrees with that reported by Saez et al [37], which confirms that Al2O3 have higher total acid sites than SZ. This is in contrast with the acid site density of SZ and Al2O3 reported by other researchers [2,12,72], the reported values could be due to the synthesis method employed.…”

Section: Nh3-tpdcontrasting

confidence: 98%

Fast furfural formation from xylose using solid acid catalysts assisted by a microwave reactor

Millán

Assal

Nieminen

et al. 2018

Fuel Processing Technology

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The production of furfural (FUR) from xylose was carried out using sulfated zirconia (SZ) on cordierite, alumina on cordierite and commercially-available polymeric solid catalysts (Amberlyst DT and Nafion NR40) to provide insights into the reaction pathways and kinetics for the dehydration of xylose in aqueous phase.Experiments conducted at three temperatures were investigated (170, 190 and 210 °C) in a stirred microwaveassisted batch reactor, which established the optimal conditions to obtain the highest FUR yield as well as extensive and fast xylose conversion. The maximum FUR yields obtained from xylose were 41 mol% when using SZ on cordierite in 2 min (at 210 °C), 43 mol% when using alumina on cordierite in 30 min (at 210 °C) and 48 mol% for an auto-catalyzed system in 60 min (at 210 °C). Based on the experimental results, a reaction mechanism was proposed considering the formation of an intermediate from xylose when solid acid catalysts were added. After five reusability cycles using SZ, this catalyst can be regenerated with a similar performance and similar FUR yield on the 6 th cycle.

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Section: Nh3-tpdcontrasting

confidence: 98%

Fast furfural formation from xylose using solid acid catalysts assisted by a microwave reactor

Millán

Assal

Nieminen

et al. 2018

Fuel Processing Technology

View full text Add to dashboard Cite

show abstract

“…This comparison agrees with that reported by Saez et al [38], which confirms that Al 2 O 3cord have higher total acid sites than SZ cord . This is in contrast with the acid site density of SZ and Al 2 O 3 reported by other researchers [2,12,74], the reported values could be due to the synthesis method employed.…”

Section: Nh 3 -Tpdcontrasting

confidence: 99%

Furfural production in a biphasic system using a carbonaceous solid acid catalyst

Millán

Phiri

Mäkelä

et al. 2019

Applied Catalysis A: General

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The contents of this work are based on more than four years of full-time research. During this time, I have been part of the staff of Aalto University, Finland and Universitat Politècnica de Catalunya (UPC), Spain under the SELECT+ PhD Programme. While finishing my bachelor studies in Mexico City, I became more aware of the world changing around me as murmurs of climate change began. I went to Germany, Denmark and Portugal during my Master studies on a quest to understand various topics about environmental concerns and how to tackle them from the engineering, chemical and managerial perspectives. I then realized that in order to decrease consumption of fossil derivatives, valorization of waste into chemicals and fuels could be the answer. Fortunately, I found a project that met my expectations converting side-streams from the pulp and paper industry into value-added chemicals. During my doctoral studies I had the opportunity to read This Changes Everything (Naomi Klein 2014), which is an eye-opening text on the climate crisis, and still grants reasons to hope. In order to complete this, we need to act now. My hope is that research in this field will point toward a greener approach in the production of chemicals and fuels.

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“…Ordered mesoporous metal oxides have promising applications in many fields due to their structural regularity, adjustable pore size, and high specific surface area [13]. Up to now, many ordered mesoporous metal oxides such as Co 3 O 4 [35,36,37], TiO 2 [38,39], WO 3 [40,41], Al 2 O 3 [42,43,44], ZrO 2 [45,46,47], CeO 2 [48,49,50], NiO [51,52], Cr 2 O 3 [53,54], Sm 2 O 3 [55], In 2 O 3 [2,56], and UO 2 [57] have been successfully synthesized. Although some ordered mesoporous metal oxides have been successfully synthesized, the structural stability and thermal stability still demand further improvement.…”

Section: Types Of Ordered Mesoporous Materialsmentioning

confidence: 99%

Designing and Fabricating Ordered Mesoporous Metal Oxides for CO2 Catalytic Conversion: A Review and Prospect

Cui

Lian

et al. 2019

Materials

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In the past two decades, great progress has been made in the aspects of fabrication and application of ordered mesoporous metal oxides. Ordered mesoporous metal oxides have attracted more and more attention due to their large surface areas and pore volumes, unblocked pore structure, and good thermal stabilities. Compared with non-porous metal oxides, the most prominent feature is their ability to interact with molecules not only on their outer surface but also on the large internal surfaces of the material, providing more accessible active sites for the reactants. This review carefully describes the characteristics, classification and synthesis of ordered mesoporous metal oxides in detail. Besides, it also summarizes the catalytic application of ordered mesoporous metal oxides in the field of carbon dioxide conversion and resource utilization, which provides prospective viewpoints to reduce the emission of greenhouse gas and the inhibition of global warming. Although the scope of current review is mainly limited to the ordered mesoporous metal oxides and their application in the field of CO2 catalytic conversion via heterogeneous catalysis processes, we believe that it will provide new insights and viewpoints to the further development of heterogeneous catalytic materials.

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Synthesis of ordered porous zirconia containing sulfate ions and evaluation of its surface acidic properties

Cited by 16 publications

References 55 publications

Fast furfural formation from xylose using solid acid catalysts assisted by a microwave reactor

Fast furfural formation from xylose using solid acid catalysts assisted by a microwave reactor

Furfural production in a biphasic system using a carbonaceous solid acid catalyst

Designing and Fabricating Ordered Mesoporous Metal Oxides for CO2 Catalytic Conversion: A Review and Prospect

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