Perception of gold materials by projecting a solid color on black materials

Carbon black materials have been frequently used from prehistory as pigments for drawings and paintings and also as dyes, inks and cosmetics, since they are easy to make by burning organic matter. However, the carbonaceous phases they form are often ill-ordered and not easy to characterize. Five carbon black Roman micro samples found in vessels in houses in Pompeii were studied. These precious powders correspond to mixed phase samples that contain both crystalline and ill-ordered components. Here, a methodological approach that accomplishes the identification, quantification and mapping of the different phases in these heterogeneous samples using synchrotron-based techniques is proposed. The results were compared with those from scanning electron microscopy. Information about the nature of the mixtures and the origin of carbon black pigments is obtained. The use of charred vegetable materials is concluded, independently of the shape and the nature of the container.

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Characterization of the reflectivity of various black materials II

Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III ◽

10.1117/12.2312359 ◽

2018 ◽

Author(s):

Darren L. DePoy ◽

Jennifer L. Marshall ◽

Lawrence Gardner ◽

Luke M. Schmidt ◽

Doyeon Kim ◽

...

Keyword(s):

Black Materials

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Black materials for masking existing road markings. Specification

10.3403/02002446 ◽

2000 ◽

Keyword(s):

Black Materials

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Electrochemical Degradation of Benzene in Water Using Platinum Supported on Carbon Black Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1044-1045.43 ◽

2014 ◽

Vol 1044-1045 ◽

pp. 43-46

Author(s):

Chiu Wen Chen ◽

Je Wei Li ◽

Chang Mao Hung ◽

Jiann Yuh Lou ◽

Cheng Di Dong

Keyword(s):

Carbon Black ◽

Batch Reactors ◽

Optimal Conditions ◽

Electrochemical Degradation ◽

Nacl Solution ◽

Applied Potential ◽

Pt Electrode ◽

Electro Oxidation ◽

Reaction Concentration ◽

Black Materials

This study investigated the feasibility of the electrochemical degradation of benzene (C6H6) in a NaCl electrolyte solution between 0.05 and 0.5 M under the temperature of 298 K and reaction concentration between 1.28×10-5 and 1.28×10-3 M with an applied potential of 3 V was conducted in this study to investigate the destruction of the C6H6 in the batch reactors using a Pt/XC-72 composite as a catalyst. Experimental results indicated that the optimal conditions in the reaction were developed as a NaCl solution with 0.1 M at pH of 1.0 under C6H6 concentration of 6.41×10-4 M. The results reveal that electrochemical degradation of C6H6 in acidic medium is highly effective, while a maximum about 41% reduction at 120 min was achieved with Pt/XC-72 composite during the electrochemical degradation. In comparsion, the removal efficiency reached only 29% with the Pt electrode, showing the suitability of the Pt/XC-72 composites for electro-oxidation of C6H6. As a result, XC-72 carbon black materials played an important role in the decomposition of C6H6. Furthermore, the Pt/XC-72 composite used in this research has been developed as a potential catalyst for the application of C6H6 electro-oxidation.

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