In situ XAS monitoring the formation of Pd2Ga/SiO2 nanoparticles for CO2  hydrogenation to methanol

H.W.P. Carvalho; Elisabetta Maria Fiordaliso; Irek Sharafutdinov; Ib Chorkendorff; Christian Danvad Damsgaard; J.-D. Grunwaldt

In situ XAS monitoring the formation of Pd₂Ga/SiO₂nanoparticles for CO₂ hydrogenation to methanol

H.W.P. Carvalho, Elisabetta Maria Fiordaliso, Irek Sharafutdinov, Ib Chorkendorff, Christian Danvad Damsgaard, J.-D. Grunwaldt

Karlsruhe Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

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Abstract

Methanol is a bulk chemical used as basis for many important downstream products such as formaldehyde, acetic acid and plastics. Furthermore it can be directly used as fuel. We have prepared Pd₂Ga/SiO₂ catalyst by impregnation of nitrates followedby calcination and reduction under H₂ atmosphere. The catalytic tests showed that at ambient pressure, the intrinsic activity of the Pd₂Ga/SiO₂ is higher than that of the conventional Cu/ZnO/Al₂O₃, while the production of the undesired CO is lower. XAS was employed to investigate the formation and local structure of Pd₂Ga, the results showed that the nitrates are converted to highly dispersed and disordered oxide phases which are alloyed under heating in H2/Ar atmosphere giving rise to Pd₂Ga nanoparticles.

Original language	English
Title of host publication	Program XAFS16 : 16th International Conference on X-ray Absorption Fine Structure
Number of pages	1
Publication date	2015
Pages	118
Publication status	Published - 2015
Event	16th International Conference on X-ray Absorption Fine Structure - Karlsruhe, Germany Duration: 23 Aug 2015 → 28 Aug 2015 Conference number: 16

Conference

Conference	16th International Conference on X-ray Absorption Fine Structure
Number	16
Country/Territory	Germany
City	Karlsruhe
Period	23/08/2015 → 28/08/2015

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title = "In situ XAS monitoring the formation of Pd2Ga/SiO2 nanoparticles for CO2 hydrogenation to methanol",

abstract = "Methanol is a bulk chemical used as basis for many important downstream products such as formaldehyde, acetic acid and plastics. Furthermore it can be directly used as fuel. We have prepared Pd2Ga/SiO2 catalyst by impregnation of nitrates followedby calcination and reduction under H2 atmosphere. The catalytic tests showed that at ambient pressure, the intrinsic activity of the Pd2Ga/SiO2 is higher than that of the conventional Cu/ZnO/Al2O3, while the production of the undesired CO is lower. XAS was employed to investigate the formation and local structure of Pd2Ga, the results showed that the nitrates are converted to highly dispersed and disordered oxide phases which are alloyed under heating in H2/Ar atmosphere giving rise to Pd2Ga nanoparticles.",

author = "H.W.P. Carvalho and Fiordaliso, {Elisabetta Maria} and Irek Sharafutdinov and Ib Chorkendorff and Damsgaard, {Christian Danvad} and J.-D. Grunwaldt",

year = "2015",

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pages = "118",

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Carvalho, HWP, Fiordaliso, EM, Sharafutdinov, I, Chorkendorff, I , Damsgaard, CD & Grunwaldt, J-D 2015, In situ XAS monitoring the formation of Pd₂Ga/SiO₂nanoparticles for CO₂ hydrogenation to methanol. in Program XAFS16: 16th International Conference on X-ray Absorption Fine Structure. pp. 118, 16th International Conference on X-ray Absorption Fine Structure, Karlsruhe, Germany, 23/08/2015.

In situ XAS monitoring the formation of Pd₂Ga/SiO₂nanoparticles for CO₂ hydrogenation to methanol. / Carvalho, H.W.P.; Fiordaliso, Elisabetta Maria; Sharafutdinov, Irek et al.
Program XAFS16: 16th International Conference on X-ray Absorption Fine Structure. 2015. p. 118.

Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research › peer-review

TY - ABST

T1 - In situ XAS monitoring the formation of Pd2Ga/SiO2 nanoparticles for CO2 hydrogenation to methanol

AU - Carvalho, H.W.P.

AU - Fiordaliso, Elisabetta Maria

AU - Sharafutdinov, Irek

AU - Chorkendorff, Ib

AU - Damsgaard, Christian Danvad

AU - Grunwaldt, J.-D.

N1 - Conference code: 16

PY - 2015

Y1 - 2015

N2 - Methanol is a bulk chemical used as basis for many important downstream products such as formaldehyde, acetic acid and plastics. Furthermore it can be directly used as fuel. We have prepared Pd2Ga/SiO2 catalyst by impregnation of nitrates followedby calcination and reduction under H2 atmosphere. The catalytic tests showed that at ambient pressure, the intrinsic activity of the Pd2Ga/SiO2 is higher than that of the conventional Cu/ZnO/Al2O3, while the production of the undesired CO is lower. XAS was employed to investigate the formation and local structure of Pd2Ga, the results showed that the nitrates are converted to highly dispersed and disordered oxide phases which are alloyed under heating in H2/Ar atmosphere giving rise to Pd2Ga nanoparticles.

AB - Methanol is a bulk chemical used as basis for many important downstream products such as formaldehyde, acetic acid and plastics. Furthermore it can be directly used as fuel. We have prepared Pd2Ga/SiO2 catalyst by impregnation of nitrates followedby calcination and reduction under H2 atmosphere. The catalytic tests showed that at ambient pressure, the intrinsic activity of the Pd2Ga/SiO2 is higher than that of the conventional Cu/ZnO/Al2O3, while the production of the undesired CO is lower. XAS was employed to investigate the formation and local structure of Pd2Ga, the results showed that the nitrates are converted to highly dispersed and disordered oxide phases which are alloyed under heating in H2/Ar atmosphere giving rise to Pd2Ga nanoparticles.

M3 - Conference abstract in proceedings

SP - 118

BT - Program XAFS16

T2 - 16th International Conference on X-ray Absorption Fine Structure

Y2 - 23 August 2015 through 28 August 2015

ER -

In situ XAS monitoring the formation of Pd2Ga/SiO2 nanoparticles for CO2 hydrogenation to methanol