Insights into the Maya Blue Technology: Greenish Pellets from the Ancient City of La Blanca

Doménech, Antonio; Doménech‐Carbó, María Teresa; Vidal-Lorenzo, Cristina; Ágredos-Pascual, María Luisa Vázquez de

doi:10.1002/ange.201106562

Angewandte Chemie

2011

DOI: 10.1002/ange.201106562

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Insights into the Maya Blue Technology: Greenish Pellets from the Ancient City of La Blanca

Antonio Doménech

María Teresa Doménech‐Carbó

Cristina Vidal-Lorenzo

et al.

Abstract: Historische Chemie: Die Entdeckung grünlicher Pellets aus altertümlichem Putz in der archäologischen Grabungsstelle von La Blanca (Guatemala) liefert Beweise, dass die Mayas ein mit Maya‐Blau verwandtes Material auch in Bereichen außerhalb von Töpferarbeiten, Wandmalereien, Skulpturen oder religiösen Zusammenhängen verwendeten. Offensichtlich entwickelten sie verschiedene Strategien zur Herstellung organisch‐anorganischer Hybridmaterialien.

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Cited by 3 publications

References 32 publications

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Potential Application of Voltammetry of Microparticles for Dating Porcine Blood‐based Binding Media used in Taiwanese Architectural Polychromies

Doménech

Doménech‐Carbó

et al. 2012

Chemistry An Asian Journal

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A method for dating Hemoglobine-containing archaeological samples using the voltammetry of microparticles is described. This is based on the record of the voltammetric response of such materials attached to paraffin-impregnated graphite electrodes in contact with aqueous acetate buffer. Signals attributable to the Fe(III)/Fe(II) iron couple and their catalytic enhancement in the presence of H(2)O(2) can be correlated, via first-order reaction kinetics, with the time of aging of the samples. The method has been applied to the study and dating of the polychromed architectural decoration of different parts of the architectural complex of the Longshan Temple in Lukang (18(th) century, Taiwan).

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Potential Application of Voltammetry of Microparticles for Dating Porcine Blood‐based Binding Media used in Taiwanese Architectural Polychromies

Doménech

Doménech‐Carbó

et al. 2012

Chemistry An Asian Journal

Self Cite

View full text Add to dashboard Cite

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Supramolecular Organization in Confined Nanospaces

Tabacchi

2018

ChemPhysChem

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Empty spaces are abhorred by nature, which immediately rushes in to fill the void. Humans have learnt pretty well how to make ordered empty nanocontainers, and to get useful products out of them. When such an order is imparted to molecules, new properties may appear, often yielding advanced applications. This review illustrates how the organized void space inherently present in various materials: zeolites, clathrates, mesoporous silica/organosilica, and metal organic frameworks (MOF), for example, can be exploited to create confined, organized, and self-assembled supramolecular structures of low dimensionality. Features of the confining matrices relevant to organization are presented with special focus on molecular-level aspects. Selected examples of confined supramolecular assemblies - from small molecules to quantum dots or luminescent species - are aimed to show the complexity and potential of this approach. Natural confinement (minerals) and hyperconfinement (high pressure) provide further opportunities to understand and master the atomistic-level interactions governing supramolecular organization under nanospace restrictions.

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Homogeneous Electrochemical Water Oxidation at Neutral pH by Water‐Soluble Ni^II Complexes Bearing Redox Non‐innocent Tetraamido Macrocyclic Ligands

Lee

Sun

2020

ChemSusChem

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Water oxidation is the bottleneck reaction in artificial photosynthesis. Exploring highly active and stable molecular water oxidation catalysts (WOCs) is still a great challenge. In this study, a water‐soluble NiII complex bearing a redox non‐innocent tetraamido macrocyclic ligand (TAML) is found to be an efficient electrocatalyst for water oxidation in neutral potassium phosphate buffer. Controlled‐potential electrolysis experiments show that it can sustain at a steady current of approximately 0.2 mA cm−2 for >7 h at 1.75 V versus normal hydrogen electrode (NHE) without the formation of NiOx. Electrochemical and spectroelectrochemical tests show that the redox‐active ligand, as well as HPO42− in the buffer, participate in the catalytic cycle. More importantly, catalytically active intermediate [NiIII(TAML2−)−O.] is formed via several proton‐coupled electron transfer processes and reacts with H2O with the assistance of base to release molecular oxygen. Thus, the employment of redox non‐innocent ligands is a useful strategy for designing effective molecular WOCs.

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Insights into the Maya Blue Technology: Greenish Pellets from the Ancient City of La Blanca

Cited by 3 publications

References 32 publications

Potential Application of Voltammetry of Microparticles for Dating Porcine Blood‐based Binding Media used in Taiwanese Architectural Polychromies

Potential Application of Voltammetry of Microparticles for Dating Porcine Blood‐based Binding Media used in Taiwanese Architectural Polychromies

Supramolecular Organization in Confined Nanospaces

Homogeneous Electrochemical Water Oxidation at Neutral pH by Water‐Soluble Ni^II Complexes Bearing Redox Non‐innocent Tetraamido Macrocyclic Ligands

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Insights into the Maya Blue Technology: Greenish Pellets from the Ancient City of La Blanca

Cited by 3 publications

References 32 publications

Potential Application of Voltammetry of Microparticles for Dating Porcine Blood‐based Binding Media used in Taiwanese Architectural Polychromies

Potential Application of Voltammetry of Microparticles for Dating Porcine Blood‐based Binding Media used in Taiwanese Architectural Polychromies

Supramolecular Organization in Confined Nanospaces

Homogeneous Electrochemical Water Oxidation at Neutral pH by Water‐Soluble NiII Complexes Bearing Redox Non‐innocent Tetraamido Macrocyclic Ligands

Contact Info

Product

Resources

About

Homogeneous Electrochemical Water Oxidation at Neutral pH by Water‐Soluble Ni^II Complexes Bearing Redox Non‐innocent Tetraamido Macrocyclic Ligands