Advanced solid-state NMR spectroscopy of natural organic matter

J Mao, X Cao, DC Olk, W Chu… - Progress in nuclear …, 2017 - Elsevier
Solid-state NMR is essential for the characterization of natural organic matter (NOM) and is
gaining importance in geosciences and environmental sciences. This review is intended to …

Recent advances in characterization technology for value-added utilization of coal tars

ZH Ma, S Li, XQ Dong, M Li, GH Liu, ZQ Liu, FJ Liu… - Fuel, 2023 - Elsevier
Coal tars are by products from coal pyrolysis, carbonization, and gasification, and are raw
materials for obtaining value-added chemicals and carbon materials. Molecular …

Boosting sodium storage performance of hard carbons by regulating oxygen functionalities of the cross-linked asphalt precursor

R Xu, Z Yi, M Song, J Chen, X Wei, F Su, L Dai, G Sun… - Carbon, 2023 - Elsevier
Pre-oxidation treatment is a key process to produce carbon anodes for sodium ion batteries
from pitch because it governs the orientation of carbon layers during subsequent …

FTIR and Raman spectroscopy characterization of functional groups in various rank coals

X He, X Liu, B Nie, D Song - Fuel, 2017 - Elsevier
Coals varying in rank from lignite to anthracite were comprehensively characterized with
regard to chemical structure using FTIR and Raman spectroscopy. Structural parameters …

Structure of some western Anatolia coals investigated by FTIR, Raman, 13C solid state NMR spectroscopy and X-ray diffraction

M Baysal, A Yürüm, B Yıldız, Y Yürüm - International Journal of Coal …, 2016 - Elsevier
Turkey has one of the largest lignite deposits in Europe but the low calorific values of Turkish
lignites dictate new and environmentally safe new utilization technologies for further …

Molecular structure characterization of lignite treated with ionic liquid via FTIR and XRD spectroscopy

L Zhao, N Guanhua, W Hui, S Qian, W Gang, J Bingyou… - Fuel, 2020 - Elsevier
In order to characterize the effect of ionic liquid concentration on the molecular structure of
lignite, the X-ray diffraction (XRD) and Fourier transform infrared (FTIR) experiments were …

Preparation and Characterization of Coal Pitch-Based Needle Coke (Part I): The Effects of Aromatic Index (fa) in Refined Coal Pitch

Y Zhu, C Zhao, Y Xu, C Hu, X Zhao - Energy & Fuels, 2019 - ACS Publications
Refined coal pitch is a recognized precursor to produce high-quality needle coke with its
higher aromaticity, lower ash content, and a relatively narrow distribution of molecular …

Construction of a macromolecular structure model for Zhundong subbituminous coal

L Qian, C Tao, C Ma, J Xue, F Guo, X Jia… - Journal of Molecular …, 2022 - Elsevier
Understanding the coal molecular structure is of paramount importance for the effective
utilization of coal. In this paper, the molecular structure of Zhundong coal (ZD) was …

Conversion of aliphatic structure-rich coal maceral into high-capacity hard carbons for sodium-ion batteries

G Zhao, T Xu, Y Zhao, Z Yi, L **e, F Su, Z Yao… - Energy Storage …, 2024 - Elsevier
Pre-oxidation is an effective strategy for preparing high-capacity coal-derived hard carbons.
However, the complex molecular structure of coal results in the uncontrollability of oxidation …

The structural and pyrolysis characteristics of vitrinite and inertinite from Shendong coal and the gasification performance of chars

Q Yao, M Ma, Y Liu, D Ma, H Chen, Q Hao… - Journal of Analytical and …, 2022 - Elsevier
Different coal macerals have different pyrolysis characteristics. The in-depth study of their
pyrolysis characteristics is helpful to realize coal graded utilization. The objective of this …