Journal ArticleDOI
Time-dependent power law function for the post-dealloying chemical coarsening of nanoporous gold derived using small-angle X-ray scattering
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TLDR
In this paper, a quantitative relationship between the ligament size and coarsening time was derived for dealloyed nanoporous gold samples aged in nitric acid over the course of 6 days at room temperature.About:
This article is published in Scripta Materialia.The article was published on 2022-01-01. It has received 10 citations till now. The article focuses on the topics: Nanoporous & Small-angle X-ray scattering.read more
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In Situ Study of Nanoporosity Evolution during Dealloying AgAu and CoPd by Grazing-Incidence Small-Angle X-ray Scattering
Markus Gößler,Elisabeth Hengge,Marco Bogar,Mihaela Albu,Daniel Knez,Heinz Amenitsch,Roland Würschum +6 more
TL;DR: In this paper , the evolution of nanoporosity in the electrochemical dealloying process for both CoPd and AgAu alloys using a combination of in situ grazing-incidence small-angle X-ray scattering (GISAXS), kinetic Monte Carlo (KMC) simulations, and scanning transmission electron microscopy (STEM).
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Ultrafine nanoporous aluminum by electrolytic dealloying of aluminum-magnesium alloys in glyme-based electrolytes with recovery of sacrificial magnesium
TL;DR: In this article , a new electrolyte consisting of MgCl2/AlCl3/Mg(TFSI)2 (or MACT) in glyme-based solvents recently introduced in the Mg-ion battery community can also be used to create NP-Al.
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Nanoporous Gold: From Structure Evolution to Functional Properties in Catalysis and Electrochemistry
Gunther Wittstock,Marcus Bäumer,Wilke Dononelli,Thorsten Klüner,Lukas Lührs,Christoph Mahr,Lyudmila V. Moskaleva,Mehtap Oezaslan,Thomas Risse,Andreas Rosenauer,Anne Staubitz,Jörg Weissmüller,Arne Wittstock +12 more
TL;DR: In this paper , the authors provide a critical discussion of ways to tune the morphology and composition of Nanoporous Gold and its implication for catalysis and electrocatalysis, and exemplarily review the current mechanistic understanding of the partial oxidation of methanol using information from quantum chemical studies, model studies on single-crystal surfaces, gas phase catalysis, aerobic liquid phase oxidation, and electro-catalysis.
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Sacrificial Silver Recovery during Nanoporous Gold Formation by Electrolytic Dealloying of Gold-Silver Alloy
TL;DR: In this paper , an electrolytic cell is created consisting of a Au-Ag alloy foil working electrode and a Ag foil counter and reference electrode immersed in a nonaqueous Ag+ ion electrolyte.
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Electrochemical Biosensor Based on Chitosan- and Thioctic-Acid-Modified Nanoporous Gold Co-Immobilization Enzyme for Glycerol Determination
TL;DR: An electrochemical biosensor based on chitosan- and thioctic-acid-modified nanoporous gold (NPG) co-immobilization glycerol kinase (GK) and GPO was constructed for glycerols determination in wine as mentioned in this paper .
References
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The Scherrer Formula for X-Ray Particle Size Determination
TL;DR: An exact derivation of the Scherrer equation is given for particles of spherical shape, values of the constant for half-value breadth and for integral breadth being obtained in this article, and various approximation methods which have been used are compared with the exact calculation.
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Nanoporous Gold Leaf: “Ancient Technology”/Advanced Material
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Nanoporous gold: a new material for catalytic and sensor applications
TL;DR: This work deals with the actuation of np-Au by the reversible oxidation of its surface using ozone and the adsorbate controlled coarsening of ligaments, using annealing experiments under ozone or inert gas atmosphere.
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ALD Functionalized Nanoporous Gold: Thermal Stability, Mechanical Properties, and Catalytic Activity
Monika M. Biener,Juergen Biener,Andre Wichmann,Arne Wittstock,Theodore F. Baumann,Marcus Bäumer,Alex V. Hamza +6 more
TL;DR: It is demonstrated that atomic layer deposition (ALD) can be used to stabilize and functionalize nanoporous metals and open the door to high-temperature sensor, actuator, and catalysis applications and functionalized electrodes for energy storage and harvesting applications.
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Scattering properties of a model bicontinuous structure with a well defined length scale.
TL;DR: In this paper, Cahn's scheme for simulating the morphology of isotropic spinodal decomposition is adapted to a mathematical model of bicontinuous partitioning of space by interfacial pairs that may be useful for problems of microdispersed and microporous systems distinguished by a morphology with a well defined length scale.