Exploring polycyclic aromatic hydrocarbons as an anolyte for nonaqueous redox flow batteries

2018 ◽  
Vol 6 (27) ◽  
pp. 13286-13293 ◽  
Author(s):  
Gongwei Wang ◽  
Bing Huang ◽  
Dan Liu ◽  
Dong Zheng ◽  
Joshua Harris ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Active Species ◽  
Redox Flow Batteries ◽  
Redox Active ◽  
Flow Batteries ◽  
Polycyclic Aromatic

A series of polycyclic aromatic hydrocarbons were systematically investigated as the anode redox-active species for nonaqueous flow batteries.

Boron-Containing Polycyclic Aromatic Hydrocarbons: Facile Synthesis of Stable, Redox-Active Luminophores

2015 ◽  
Vol 127 (30) ◽  
pp. 8924-8928 ◽  
Author(s):  
Valentin M. Hertz ◽  
Michael Bolte ◽  
Hans-Wolfram Lerner ◽  
Matthias Wagner
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Facile Synthesis ◽  
Redox Active ◽  
Polycyclic Aromatic

scholarly journals Relationship between chemical composition and oxidative potential of secondary organic aerosol from polycyclic aromatic hydrocarbons

2018 ◽  
Vol 18 (6) ◽  
pp. 3987-4003 ◽  
Author(s):  
Shunyao Wang ◽  
Jianhuai Ye ◽  
Ronald Soong ◽  
Bing Wu ◽  
Legeng Yu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Chemical Composition ◽  
Aromatic Hydrocarbons ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Model Systems ◽  
Proton Nuclear Magnetic Resonance ◽  
Oxidative Potential ◽  
Redox Active ◽  
Polycyclic Aromatic

Abstract. Owing to the complex nature and dynamic behaviors of secondary organic aerosol (SOA), its ability to cause oxidative stress (known as oxidative potential, or OP) and adverse health outcomes remains poorly understood. In this work, we probed the linkages between the chemical composition of SOA and its OP, and investigated impacts from various SOA evolution pathways, including atmospheric oligomerization, heterogeneous oxidation, and mixing with metal. SOA formed from photooxidation of the two most common polycyclic aromatic hydrocarbons (naphthalene and phenanthrene) were studied as model systems. OP was evaluated using the dithiothreitol (DTT) assay. The oligomer-rich fraction separated by liquid chromatography dominates DTT activity in both SOA systems (52 ± 10 % for naphthalene SOA (NSOA), and 56 ± 5 % for phenanthrene SOA (PSOA)). Heterogeneous ozonolysis of NSOA was found to enhance its OP, which is consistent with the trend observed in selected individual oxidation products. DTT activities from redox-active organic compounds and metals were found to be not additive. When mixing with highly redox-active metal (Cu), OP of the mixture decreased significantly for 1,2-naphthoquinone (42 ± 7 %), 2,3-dihydroxynaphthalene (35 ± 1 %), NSOA (50 ± 6 %), and PSOA (43 ± 4 %). Evidence from proton nuclear magnetic resonance (1H NMR) spectroscopy illustrates that such OP reduction upon mixing can be ascribed to metal–organic binding interactions. Our results highlight the role of aerosol chemical composition under atmospheric aging processes in determining the OP of SOA, which is needed for more accurate and explicit prediction of the toxicological impacts from particulate matter.

scholarly journals Relationship between Chemical Composition and Oxidative Potential of Secondary Organic Aerosol from Polycyclic Aromatic Hydrocarbons

2017 ◽  
Author(s):  
Shunyao Wang ◽  
Jianhuai Ye ◽  
Ronald Soong ◽  
Bing Wu ◽  
Legeng Yu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Chemical Composition ◽  
Aromatic Hydrocarbons ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Model Systems ◽  
Proton Nuclear Magnetic Resonance ◽  
Oxidative Potential ◽  
Redox Active ◽  
Polycyclic Aromatic

Abstract. Owing to the complex nature and dynamic behaviors of secondary organic aerosol (SOA), its ability to cause oxidative stress (known as oxidative potential, or OP) and adverse health outcomes remain poorly understood. In this work, we probed into linkages between the chemical composition of SOA and its OP, and investigated impacts from various SOA evolution pathways, including atmospheric oligomerization, heterogeneous oxidation and mixing with metal. SOA formed from photooxidation of the two most common polycyclic aromatic hydrocarbons (naphthalene and phenanthrene) were studied as model systems. OP was evaluated using the dithiothreitol (DTT) assay. The oligomer-rich fraction separated by liquid chromatography contributed significantly to DTT activity in both SOA systems (52 ± 10 % for NSOA and 56 ± 5 % for PSOA). Heterogeneous ozonolysis of NSOA was found to enhance its OP, which is consistent with the trend observed in selected individual oxidation products. DTT activities from redox-active organic compounds and metals were found to be not additive. When mixing with highly redox-active metal (Cu), OP of the mixture decreased significantly for 1, 2-naphthoquinone (42 ± 7 %), 2, 3-dihydroxynaphthalene (35 ± 1 %), NSOA (50±6%) and PSOA (43 ± 4 %). Evidence from proton nuclear magnetic resonance (1H NMR) spectroscopy illustrates that such OP reduction upon mixing can be ascribed to metal-organic binding interactions. Our results highlight the role of aerosol chemical composition under atmospheric aging processes in determining the OP of SOA, which is needed for a more accurate and explicit prediction of the toxicological impacts from particulate matter.

The Assessment of Contamination and Source of Polycyclic Aromatic Hydrocarbons from the Sediments of the Someş River

2019 ◽  
Vol 64 (1) ◽  
pp. 55-67
Author(s):  
Vlad Pӑnescu ◽  
◽  
Mihaela Cӑtӑlina Herghelegiu ◽  
Sorin Pop ◽  
Mircea Anton ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic
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