Engineering morphology and porosity of N,S-doped carbons by ionothermal carbonisation for increased catalytic activity towards oxygen reduction reaction

Micro & nano letters

article

Yimai Chen¹  Shuhui Huo¹  Hui Wang² 

[1] College of Chemistry and Chemical Engineering, Northwest Normal University;Institute of Chemical Engineering, Qingdao University of Science and Technology

关键词: porosity;    carbon;    nitrogen;    sulphur;    catalysis;    catalysts;    reduction (chemical);    mesoporous materials;    high-temperature effects;    scanning electron microscopy;    adsorption;    desorption;    electrochemistry;    materials preparation;    doping;    porosity;    ionothermal carbonisation;    catalytic activity;    oxygen reduction reaction;    molten salt medium;    high temperature effect;    scanning electron microscopy;    N2 adsorption-desorption isotherm;    hierarchical porous structure;    NaCl-KCl salt mixture;    one-pot method;    facile method;    specific surface area;    micropore material;    mesopore material;    catalysts;    doping effect;    electrochemical performance;    egg white;    biomass precursors;    morphology engineering;    CN;    S;    N2;   

DOI  :  10.1049/mnl.2017.0792

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Immunological impairments such as lymphopenia in patients with sarcoidosis and their treatment by glucocorticoids and cytotoxic drugs may increase the risk of severe bacterial and viral infections, so these people may be more susceptible to COVID-19 as a disease with viral source. On the other hand, many previous studies pointed to viral trigger in sarcoidosis but no specific virus was mentioned. A recent French cross sectional study on 482 patients, suggests that daily active tobacco smokers have a lower risk of developing severe or symptomatic COVID-19 as compared to nonsmokers. It should be mentioned that our primary observations during the first COVID-19 outbreak (February-April 2020) on 206 COVID-19 patients admitted in intensive care units in Shahid Sadoughi hospital, Yazd, Iran, showed a possible negative association between smoking and coronavirus-2 infection. An observation that was addressed in the literature for sarcoidosis. Some previous studies mentioned that current smokers also have less probability for developing sarcoidosis. According to all these comparable features in patients with COVID-19 and sarcoidosis, may be one day in future, it will be reported that a sarcoidosis-like disease found in patients with COVID-9 history in 2020. Who knows?.

【 授权许可】

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