Carbon dioxide and carbon monoxide hydrogenation over gold supported on titanium, iron, and zinc oxides

Sakurai, Hiroaki; Haruta, Masatake

doi:10.1016/0926-860x(95)00058-5

Cited by 184 publications

(116 citation statements)

References 22 publications

Supporting

Mentioning

111

Contrasting

Unclassified

Order By: Relevance

“…The conversion data of the scenarios, which include the larger hydrocarbons (such as propane, butane etc) and alcohols are listed in Table S1 in the Supporting information. Methane was also investigated as a potential product, although not detected by GC-MS, since it was reported earlier as a product of this type of a reaction 2,5,18,37 . When all the detected molecules and methane were included in the calculations as products of the reaction, all CO2 was found to be converted to methane.…”

Section: Resultsmentioning

confidence: 99%

Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

Atakan

Erdtman

Mäkie

et al. 2018

Journal of Catalysis

View full text Add to dashboard Cite

The self-archived postprint version of this journal article is available at Linköping University Institutional Repository (DiVA): http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-147297 N.B.: When citing this work, cite the original publication.Atakan, A., Erdtman, E., Mäkie, P., Ojamäe, L., Odén, M., (2018) ABSTRACT: Time evolution of catalytic CO2 hydrogenation to methanol and dimethyl ether (DME) has been investigated in a hightemperature high-pressure reaction chamber where products accumulate over time. The employed catalysts are based on a nano-assembly composed of Cu nanoparticles infiltrated into a Zr doped SiOx mesoporous framework (SBA-15): Cu-Zr-SBA-15. The CO2 conversion was recorded as a function of time by gas chromatography-mass spectrometry (GC-MS) and the molecular activity on the catalyst's surface was examined by diffuse reflectance in-situ Fourier transform infrared spectroscopy (DRIFTS). The experimental results showed that after 14 days a CO2 conversion of 25% to methanol and DME was reached when a DME selective catalyst was used which was also illustrated by thermodynamic equilibrium calculations. With higher Zr content in the catalyst, greater selectivity for methanol and a total 9.5 % conversion to methanol and DME was observed, yielding also CO as an additional product. The time evolution profiles indicated that DME is formed directly from methoxy groups in this reaction system. Both DME and methanol selective systems show the thermodynamically highest possible conversion.

show abstract

Section: Resultsmentioning

confidence: 99%

Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

Atakan

Erdtman

Mäkie

et al. 2018

Journal of Catalysis

View full text Add to dashboard Cite

show abstract

“…Using this method Au on α-Fe 2 O 3 [29][30][31][32][33][34][35][36][37][38][39][40], MnOx [41], ZnO [42][43][44][45] can be prepared with good dispersion. Addition of magnesium citrate during or after the precipitation was shown to be beneficial in some cases such as for Au/TiO 2 [46].…”

Section: Co-precipitationmentioning

confidence: 99%

The Art of Manufacturing Gold Catalysts

Prati

Villa

2011

Catalysts

View full text Add to dashboard Cite

show abstract

“…In this work, we found that Au/Zn0.5Fe0.5Ox, containing Au/ZnO and Au/ZnFe2O4, displayed lower cinnamaldehyde (CAL) conversion and higher cinnamyl alcohol (COL) selectivity than Au/ZnO and Au/Fe2O3 (Table 4). Sakurai et al used Au/ZnO, Au/Fe2O3, and Au/ZnFe2O4 to catalyzed CO2 hydrogenation and found that Au/ZnFe2O4 showed much lower CO2 conversion and higher methanol selectivity than Au/ZnO and Au/Fe2O3 at the reaction temperature of 250 °C [31]. In other words, Au/ZnFe2O4 possessed lower hydrogen dissociation ability than Au/ZnO and Au/Fe2O3.…”

Section: Introductionmentioning

confidence: 99%

Selective Hydrogenation of Cinnamaldehyde Catalyzed by ZnO-Fe2O3 Mixed Oxide Supported Gold Nanocatalysts

et al. 2018

Self Cite

View full text Add to dashboard Cite

ZnO-Fe 2 O 3 mixed oxides and supported gold nanocatalysts were prepared by using coprecipitation and deposition-precipitation methods, respectively. Cinnamaldehyde hydrogenation over various ZnO-Fe 2 O 3 mixed oxides supported gold nanocatalysts have been investigated at 140 • C and a hydrogen pressure of 1.0 MPa. The molar ratio of Fe to Zn was found to greatly affect the selective hydrogenation catalytic activity of ZnO-Fe 2 O 3 mixed oxide supported gold nanocatalysts. Among these supported gold nanocatalysts in this work, Au/Zn 0.7 Fe 0.3 O x (Au loading of 1.74 wt %) exhibited the highest conversion of cinnamaldehyde and high selectivity to cinnamal alcohol. The excellent catalytic activity of Au/Zn 0.7 Fe 0.3 O x was tightly associated with a large surface area, small gold nanoparticles, and good H 2 dissociation ability at low temperature.

show abstract

Carbon dioxide and carbon monoxide hydrogenation over gold supported on titanium, iron, and zinc oxides

Cited by 184 publications

References 22 publications

Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

Time evolution of the CO2 hydrogenation to fuels over Cu-Zr-SBA-15 catalysts

The Art of Manufacturing Gold Catalysts

Selective Hydrogenation of Cinnamaldehyde Catalyzed by ZnO-Fe2O3 Mixed Oxide Supported Gold Nanocatalysts

Contact Info

Product

Resources

About