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Ted Pella thin suspended si 3 n 4 membranes
Size-selected Pt n cluster generation, deposition and transport on silicon nitride and silicon oxide supports. (a) Scanning the mass-to-charge ratio via the quadrupole mass filter gives a mass spectrum with an intense peak for Pt atoms and separate peaks for Pt n ( n = 2, 3, 4, … 31) clusters. (b and c) Pt 20 clusters deposited onto the 8 nm thin Si 3 N 4 membrane of a TEM grid imaged via HAADF-STEM (b) before and (c) after transport from Munich to Berkeley in air, XPS measurements in oxidizing and reducing atmospheres and transport back to Munich. (d) Pt 4f region of Pt n /SiO 2 /n-Si(100) samples with n = 8, 12, 13, 14, 20 and 40 atom clusters. The black vertical line is a guide to the eye, illustrating the binding energy size dependence. (e) C 1s region of a SiO 2 /n-Si sample taken at 490 eV during sample cleaning in 0.7 mbar O 2 at 393 K, at the beginning of the treatment (black) and after 20 min (red). (f) Representative Si 2p spectrum and fit.
Thin Suspended Si 3 N 4 Membranes, supplied by Ted Pella, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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1) Product Images from "Evolution of size-selected Pt cluster catalysts on prototypical oxide supports"

Article Title: Evolution of size-selected Pt cluster catalysts on prototypical oxide supports

Journal: Faraday Discussions

doi: 10.1039/d6fd00002a

Size-selected Pt n cluster generation, deposition and transport on silicon nitride and silicon oxide supports. (a) Scanning the mass-to-charge ratio via the quadrupole mass filter gives a mass spectrum with an intense peak for Pt atoms and separate peaks for Pt n ( n = 2, 3, 4, … 31) clusters. (b and c) Pt 20 clusters deposited onto the 8 nm thin Si 3 N 4 membrane of a TEM grid imaged via HAADF-STEM (b) before and (c) after transport from Munich to Berkeley in air, XPS measurements in oxidizing and reducing atmospheres and transport back to Munich. (d) Pt 4f region of Pt n /SiO 2 /n-Si(100) samples with n = 8, 12, 13, 14, 20 and 40 atom clusters. The black vertical line is a guide to the eye, illustrating the binding energy size dependence. (e) C 1s region of a SiO 2 /n-Si sample taken at 490 eV during sample cleaning in 0.7 mbar O 2 at 393 K, at the beginning of the treatment (black) and after 20 min (red). (f) Representative Si 2p spectrum and fit.
Figure Legend Snippet: Size-selected Pt n cluster generation, deposition and transport on silicon nitride and silicon oxide supports. (a) Scanning the mass-to-charge ratio via the quadrupole mass filter gives a mass spectrum with an intense peak for Pt atoms and separate peaks for Pt n ( n = 2, 3, 4, … 31) clusters. (b and c) Pt 20 clusters deposited onto the 8 nm thin Si 3 N 4 membrane of a TEM grid imaged via HAADF-STEM (b) before and (c) after transport from Munich to Berkeley in air, XPS measurements in oxidizing and reducing atmospheres and transport back to Munich. (d) Pt 4f region of Pt n /SiO 2 /n-Si(100) samples with n = 8, 12, 13, 14, 20 and 40 atom clusters. The black vertical line is a guide to the eye, illustrating the binding energy size dependence. (e) C 1s region of a SiO 2 /n-Si sample taken at 490 eV during sample cleaning in 0.7 mbar O 2 at 393 K, at the beginning of the treatment (black) and after 20 min (red). (f) Representative Si 2p spectrum and fit.

Techniques Used: Membrane, Binding Assay

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Suspension:

Article Title: Synthesis and Structural Evolution of Nickel-Cobalt Nanoparticles Under H2 and CO2.
Article Snippet: electrochemical, [ 2 ] and photochemical [ 3,4 ] processes that use it as a feedstock has strongly increased over the last decade.. Amongst these processes, the chemical reduction of CO 2 by H 2 (sometimes called CO 2 -based Fischer-Tropsch Synthesis) [ 5 ] could provide clean synthetic fuels as well as a variety of chemicals such as oxygenates.. [ 6–8 ] To achieve this, CO insertion reactions should be promoted over CO 2 and CO dissociation.

Membrane:

Article Title: Synthesis and Structural Evolution of Nickel-Cobalt Nanoparticles Under H2 and CO2.
Article Snippet: electrochemical, [ 2 ] and photochemical [ 3,4 ] processes that use it as a feedstock has strongly increased over the last decade.. Amongst these processes, the chemical reduction of CO 2 by H 2 (sometimes called CO 2 -based Fischer-Tropsch Synthesis) [ 5 ] could provide clean synthetic fuels as well as a variety of chemicals such as oxygenates.. [ 6–8 ] To achieve this, CO insertion reactions should be promoted over CO 2 and CO dissociation.

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Image Search Results


Size-selected Pt n cluster generation, deposition and transport on silicon nitride and silicon oxide supports. (a) Scanning the mass-to-charge ratio via the quadrupole mass filter gives a mass spectrum with an intense peak for Pt atoms and separate peaks for Pt n ( n = 2, 3, 4, … 31) clusters. (b and c) Pt 20 clusters deposited onto the 8 nm thin Si 3 N 4 membrane of a TEM grid imaged via HAADF-STEM (b) before and (c) after transport from Munich to Berkeley in air, XPS measurements in oxidizing and reducing atmospheres and transport back to Munich. (d) Pt 4f region of Pt n /SiO 2 /n-Si(100) samples with n = 8, 12, 13, 14, 20 and 40 atom clusters. The black vertical line is a guide to the eye, illustrating the binding energy size dependence. (e) C 1s region of a SiO 2 /n-Si sample taken at 490 eV during sample cleaning in 0.7 mbar O 2 at 393 K, at the beginning of the treatment (black) and after 20 min (red). (f) Representative Si 2p spectrum and fit.

Journal: Faraday Discussions

Article Title: Evolution of size-selected Pt cluster catalysts on prototypical oxide supports

doi: 10.1039/d6fd00002a

Figure Lengend Snippet: Size-selected Pt n cluster generation, deposition and transport on silicon nitride and silicon oxide supports. (a) Scanning the mass-to-charge ratio via the quadrupole mass filter gives a mass spectrum with an intense peak for Pt atoms and separate peaks for Pt n ( n = 2, 3, 4, … 31) clusters. (b and c) Pt 20 clusters deposited onto the 8 nm thin Si 3 N 4 membrane of a TEM grid imaged via HAADF-STEM (b) before and (c) after transport from Munich to Berkeley in air, XPS measurements in oxidizing and reducing atmospheres and transport back to Munich. (d) Pt 4f region of Pt n /SiO 2 /n-Si(100) samples with n = 8, 12, 13, 14, 20 and 40 atom clusters. The black vertical line is a guide to the eye, illustrating the binding energy size dependence. (e) C 1s region of a SiO 2 /n-Si sample taken at 490 eV during sample cleaning in 0.7 mbar O 2 at 393 K, at the beginning of the treatment (black) and after 20 min (red). (f) Representative Si 2p spectrum and fit.

Article Snippet: For checks of Pt n cluster size via scanning transmission electron microscopy (STEM), clusters were deposited onto TEM grids with 8 nm thin suspended Si 3 N 4 membranes (TedPella, layout see SI, Fig. S2), using a hot filament in the vicinity for charge compensation on the sample.

Techniques: Membrane, Binding Assay