Pt/titania-nanotube: A potential catalyst for CO2 adsorption and hydrogenation

Yu, Kuo Pin; Yu, Wangsheng; Kuo, M. C.; Liou, Yuh Cherng; Chien, Sheng Hsuan

doi:10.1016/j.apcatb.2008.03.009

Cited by 120 publications

(50 citation statements)

References 56 publications

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“…Recently, a titania-nanotube-supported platinum (Pt/ Tnt) catalyst with a surface area of 187 m 2 /g has been prepared [39]. The catalyst contains scrolled multi-walled titania-nanotubing uniformly dispersed with Pt nanoparticles that are in the mixed-valence states as demonstrated by TPR and XPS.…”

Section: Noble Metal Catalystsmentioning

confidence: 99%

“…Since industrial feedstock typically contains a trace [39] amount of sulfur compounds, Szailer et al have examined the effect of sulfur on methanation of CO 2 [46]. A trace amount of H 2 S (e.g., 2.2 Â10 -5 ) can promote the reaction on TiO 2 -and CeO 2 -supported metals (Ru, Rh, Pd), while on other supported catalysts (e.g., ZrO 2 -, MgO-) or when the H 2 S content was higher (1.16 Â10 -4 ), the reaction was poisoned.…”

Section: Noble Metal Catalystsmentioning

confidence: 99%

See 1 more Smart Citation

Methanation of carbon dioxide: an overview

Wang

Gong

2010

Front. Chem. Sci. Eng.

487

184

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Although being very challenging, utilization of carbon dioxide (CO 2 ) originating from production processes and flue gases of CO 2 -intensive sectors has a great environmental and industrial potential due to improving the resource efficiency of industry as well as by contributing to the reduction of CO 2 emissions. As a renewable and environmentally friendly source of carbon, catalytic approaches for CO 2 fixation in the synthesis of chemicals offer the way to mitigate the increasing CO 2 buildup. Among the catalytic reactions, methanation of CO 2 is a particularly promising technique for producing energy carrier or chemical. This article focuses on recent developments in catalytic materials, novel reactors, and reaction mechanism for methanation of CO 2 .

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Section: Noble Metal Catalystsmentioning

confidence: 99%

Section: Noble Metal Catalystsmentioning

confidence: 99%

Methanation of carbon dioxide: an overview

Wang

Gong

2010

Front. Chem. Sci. Eng.

487

184

View full text Add to dashboard Cite

show abstract

“…85 The catalyst contains scrolled multi-walled titania-nanotubes uniformly dispersed with Pt nanoparticles in the mixedvalence states. CO 2 -TPD results indicated that a large amount of CO 2 adsorbed on the Pt/Tnt is ascribed to the combined effect of the tubular structure with high surface area and Pt nanoparticles with the mixed-valence.…”

mentioning

confidence: 99%

Recent advances in catalytic hydrogenation of carbon dioxide

et al. 2011

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Owing to the increasing emissions of carbon dioxide (CO 2 ), human life and the ecological environment have been affected by global warming and climate changes. To mitigate the concentration of CO 2 in the atmosphere various strategies have been implemented such as separation, storage, and utilization of CO 2 . Although it has been explored for many years, hydrogenation reaction, an important representative among chemical conversions of CO 2 , offers challenging opportunities for sustainable development in energy and the environment. Indeed, the hydrogenation of CO 2 not only reduces the increasing CO 2 buildup but also produces fuels and chemicals. In this critical review we discuss recent developments in this area, with emphases on catalytic reactivity, reactor innovation, and reaction mechanism. We also provide an overview regarding the challenges and opportunities for future research in the field (319 references).

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“…[98] Yu et al recently prepared bimodal metallic Pt nanoparticles (1-3 nm) supported on titania nanotubes through photochemical deposition of hexachloroplatinic acid (H 2 PtCl 6 ·6 H 2 O) as the metal precursor on the titania nanotube. [99] These materials were found to be highly active in the hydrogenation of CO 2 to methane under mild reaction conditions (100 8C).…”

Section: Photochemistrymentioning

confidence: 98%

Sustainable Preparation of Supported Metal Nanoparticles and Their Applications in Catalysis

et al. 2009

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Metal nanoparticles have attracted much attention over the last decade owing to their unique properties as compared to their bulk metal equivalents, including a large surface-to-volume ratio and tunable shapes. To control the properties of nanoparticles with particular respect to shape, size and dispersity is imperative, as these will determine the activity in the desired application. Supported metal nanoparticles are widely employed in catalysis. Recent advances in controlling the shape and size of nanoparticles have opened the possibility to optimise the particle geometry for enhanced catalytic activity, providing the optimum size and surface properties for specific applications. This Review describes the state of the art with respect to the preparation and use of supported metal nanoparticles in catalysis. The main groups of such nanoparticles (noble and transition metal nanoparticles) are highlighted and future prospects are discussed.

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Pt/titania-nanotube: A potential catalyst for CO2 adsorption and hydrogenation

Cited by 120 publications

References 56 publications

Methanation of carbon dioxide: an overview

Methanation of carbon dioxide: an overview

Recent advances in catalytic hydrogenation of carbon dioxide

Sustainable Preparation of Supported Metal Nanoparticles and Their Applications in Catalysis

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