未氧化煤组分对其自由基结构的影响

IF 0.5 Q4 ENGINEERING, CHEMICAL

Coke and Chemistry Pub Date : 2025-08-25 DOI:10.3103/S1068364X25600605

N. S. Zakharov, S. A. Semenova, S. A. Sozinov, Yu. F. Patrakov

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引用次数: 0

摘要

利用电子顺磁共振（EPR）谱技术，研究了未氧化KS煤的粒径对电子顺磁共振谱的影响。对于所考虑的所有尺寸分数，EPR谱都是单线态。它由一条由高斯函数描述的宽线组成；以及洛伦兹函数描述的窄线。粒子的大小对光谱线的形状有显著的影响。用EPR光谱法研究俄罗斯煤的最佳粒径为0.1 ~ 0.2 mm。对于这个分数，由高斯函数和洛伦兹函数描述的EPR线的宽度差异最大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Influence of the Fractional Composition of Unoxidized Coal on Its Radical Structure

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Influence of the Fractional Composition of Unoxidized Coal on Its Radical Structure

By electron paramagnetic resonance (EPR) spectroscopy, the influence of the particle size of unoxidized KS coal on the EPR spectra is investigated. For all the size fractions considered, the EPR spectrum is a singlet. It consists of a broad line described by a Gaussian function; and a narrow line described by a Lorentzian function. The particle size significantly affects the shape of the spectral lines. The 0.1–0.2 mm size fraction is optimal for studying Russian coal by EPR spectroscopy. For this fraction, the difference in width of the EPR lines described by the Gaussian and Lorentzian functions is greatest.

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来源期刊

Coke and Chemistry ENGINEERING, CHEMICAL-

CiteScore

0.70

自引率

50.00%

发文量

期刊介绍： The journal publishes scientific developments and applications in the field of coal beneficiation and preparation for coking, coking processes, design of coking ovens and equipment, by-product recovery, automation of technological processes, ecology and economics. It also presents indispensable information on the scientific events devoted to thermal rectification, use of smokeless coal as an energy source, and manufacture of different liquid and solid chemical products.