Loading…

Amorphous structure of superfine pulverized coal based on pair distribution function

[Display omitted] •The long-range and short-range structures of amorphous carbon were characterized.•XRD data were processed using the Ruland and Smarsly method and the Pair Distribution Function.•Carbon structural transformations of coal under mechanochemical and acid treatment effects were observe...

Full description

Saved in:
Bibliographic Details
Published in:Fuel (Guildford) 2025-02, Vol.381, p.133699, Article 133699
Main Authors: Chen, Guoqing, Zhou, Zining, Liu, Jiaxun, Yang, Xiuchao, Wu, Fang, Zhong, Xinyu, Han, Xiangxin, Liu, Jianguo, Jiang, Xiumin
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites cdi_FETCH-LOGICAL-c969-9cca61b93e8227d4b6fa117e398be7341ef35601849cc76df86cf444085a16733
container_end_page
container_issue
container_start_page 133699
container_title Fuel (Guildford)
container_volume 381
creator Chen, Guoqing
Zhou, Zining
Liu, Jiaxun
Yang, Xiuchao
Wu, Fang
Zhong, Xinyu
Han, Xiangxin
Liu, Jianguo
Jiang, Xiumin
description [Display omitted] •The long-range and short-range structures of amorphous carbon were characterized.•XRD data were processed using the Ruland and Smarsly method and the Pair Distribution Function.•Carbon structural transformations of coal under mechanochemical and acid treatment effects were observed.•The effects of functional group, coal rank, particle size, and especially defects on coal layer structure were analyzed. The amorphous carbon structure of coal exhibits many intriguing properties during particle size reduction, which can be accurately characterized by atom pair distribution function. Here, the synchrotron radiation-induced X-ray diffraction is employed to investigate the local structure of superfine pulverized coal, while the combined illustration of long-range average structural parameters is introduced to support the findings based on local structural analysis. The influences of particle size, coal rank, and demineralization are emphasized. In addition, the evolution of amorphous carbon structure during coal superfine comminution is focused on. Results indicate that the amorphous carbon structure contains mainly 2H graphite and graphene crystal structures. During the grinding, bituminous coal exhibits numerous defects and dislocations due to mechanical forces, resulting in the leftward shifts in peak positions. In contrast, anthracite’s mixed structure transitions from 2H graphite to multilayer graphene. It is worth noting that around the particle size of 20 µm, there is a noticeable turning point in the peak parameters, causing the variations of peak positions and intensities. In addition, after the acid treatment, the removal of minerals causes the peak positions to shift leftward both coals. Simultaneously, the amorphous carbon undergoes rearrangement, leading to changes in peak values. Combined the short- and long-range structural analysis, the work reveals the molecular-level changes in amorphous carbon structure in coal, which innovatively explains the evolution in defect types under mechanochemical effects. The findings contribute to better understanding of coal macromolecular models, which provide new perspectives for inspecting inherent nature of coal amorphous carbon.
doi_str_mv 10.1016/j.fuel.2024.133699
format article
fullrecord <record><control><sourceid>elsevier_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1016_j_fuel_2024_133699</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0016236124028485</els_id><sourcerecordid>S0016236124028485</sourcerecordid><originalsourceid>FETCH-LOGICAL-c969-9cca61b93e8227d4b6fa117e398be7341ef35601849cc76df86cf444085a16733</originalsourceid><addsrcrecordid>eNp9kM9qxCAQhz200O22L9CTL5BUo2si9LIs_bOw0MvexZiRGrIxaFxon76G9NzT_JiZbxg-hJ4oKSmh4rkvbYKhrEjFS8qYkPIGbUieFBUT9A7dx9gTQupmxzfovL_4MH35FHGcQzJzCoC9xTFNEKwbAU9puEJwP9Bh4_WAWx1z9COetAu4cxlzbZpd7tg0miU8oFurhwiPf3WLzm-v58NHcfp8Px72p8JIIQtpjBa0lQyaqqo73gqrKa2ByaaFmnEKlu0EoQ3Pm7XobCOM5ZyTZqepqBnbomo9a4KPMYBVU3AXHb4VJWpRoXq1qFCLCrWqyNDLCkF-7OogqGgcjAY6F8DMqvPuP_wX0aRrJA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Amorphous structure of superfine pulverized coal based on pair distribution function</title><source>Elsevier</source><creator>Chen, Guoqing ; Zhou, Zining ; Liu, Jiaxun ; Yang, Xiuchao ; Wu, Fang ; Zhong, Xinyu ; Han, Xiangxin ; Liu, Jianguo ; Jiang, Xiumin</creator><creatorcontrib>Chen, Guoqing ; Zhou, Zining ; Liu, Jiaxun ; Yang, Xiuchao ; Wu, Fang ; Zhong, Xinyu ; Han, Xiangxin ; Liu, Jianguo ; Jiang, Xiumin</creatorcontrib><description>[Display omitted] •The long-range and short-range structures of amorphous carbon were characterized.•XRD data were processed using the Ruland and Smarsly method and the Pair Distribution Function.•Carbon structural transformations of coal under mechanochemical and acid treatment effects were observed.•The effects of functional group, coal rank, particle size, and especially defects on coal layer structure were analyzed. The amorphous carbon structure of coal exhibits many intriguing properties during particle size reduction, which can be accurately characterized by atom pair distribution function. Here, the synchrotron radiation-induced X-ray diffraction is employed to investigate the local structure of superfine pulverized coal, while the combined illustration of long-range average structural parameters is introduced to support the findings based on local structural analysis. The influences of particle size, coal rank, and demineralization are emphasized. In addition, the evolution of amorphous carbon structure during coal superfine comminution is focused on. Results indicate that the amorphous carbon structure contains mainly 2H graphite and graphene crystal structures. During the grinding, bituminous coal exhibits numerous defects and dislocations due to mechanical forces, resulting in the leftward shifts in peak positions. In contrast, anthracite’s mixed structure transitions from 2H graphite to multilayer graphene. It is worth noting that around the particle size of 20 µm, there is a noticeable turning point in the peak parameters, causing the variations of peak positions and intensities. In addition, after the acid treatment, the removal of minerals causes the peak positions to shift leftward both coals. Simultaneously, the amorphous carbon undergoes rearrangement, leading to changes in peak values. Combined the short- and long-range structural analysis, the work reveals the molecular-level changes in amorphous carbon structure in coal, which innovatively explains the evolution in defect types under mechanochemical effects. The findings contribute to better understanding of coal macromolecular models, which provide new perspectives for inspecting inherent nature of coal amorphous carbon.</description><identifier>ISSN: 0016-2361</identifier><identifier>DOI: 10.1016/j.fuel.2024.133699</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Amorphous carbon structure ; Molecular model ; Pair distribution function ; Superfine pulverized coal ; Synchrotron radiation-induced X-ray diffraction</subject><ispartof>Fuel (Guildford), 2025-02, Vol.381, p.133699, Article 133699</ispartof><rights>2024 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c969-9cca61b93e8227d4b6fa117e398be7341ef35601849cc76df86cf444085a16733</cites><orcidid>0009-0007-1265-4502 ; 0000-0002-9350-4755</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Chen, Guoqing</creatorcontrib><creatorcontrib>Zhou, Zining</creatorcontrib><creatorcontrib>Liu, Jiaxun</creatorcontrib><creatorcontrib>Yang, Xiuchao</creatorcontrib><creatorcontrib>Wu, Fang</creatorcontrib><creatorcontrib>Zhong, Xinyu</creatorcontrib><creatorcontrib>Han, Xiangxin</creatorcontrib><creatorcontrib>Liu, Jianguo</creatorcontrib><creatorcontrib>Jiang, Xiumin</creatorcontrib><title>Amorphous structure of superfine pulverized coal based on pair distribution function</title><title>Fuel (Guildford)</title><description>[Display omitted] •The long-range and short-range structures of amorphous carbon were characterized.•XRD data were processed using the Ruland and Smarsly method and the Pair Distribution Function.•Carbon structural transformations of coal under mechanochemical and acid treatment effects were observed.•The effects of functional group, coal rank, particle size, and especially defects on coal layer structure were analyzed. The amorphous carbon structure of coal exhibits many intriguing properties during particle size reduction, which can be accurately characterized by atom pair distribution function. Here, the synchrotron radiation-induced X-ray diffraction is employed to investigate the local structure of superfine pulverized coal, while the combined illustration of long-range average structural parameters is introduced to support the findings based on local structural analysis. The influences of particle size, coal rank, and demineralization are emphasized. In addition, the evolution of amorphous carbon structure during coal superfine comminution is focused on. Results indicate that the amorphous carbon structure contains mainly 2H graphite and graphene crystal structures. During the grinding, bituminous coal exhibits numerous defects and dislocations due to mechanical forces, resulting in the leftward shifts in peak positions. In contrast, anthracite’s mixed structure transitions from 2H graphite to multilayer graphene. It is worth noting that around the particle size of 20 µm, there is a noticeable turning point in the peak parameters, causing the variations of peak positions and intensities. In addition, after the acid treatment, the removal of minerals causes the peak positions to shift leftward both coals. Simultaneously, the amorphous carbon undergoes rearrangement, leading to changes in peak values. Combined the short- and long-range structural analysis, the work reveals the molecular-level changes in amorphous carbon structure in coal, which innovatively explains the evolution in defect types under mechanochemical effects. The findings contribute to better understanding of coal macromolecular models, which provide new perspectives for inspecting inherent nature of coal amorphous carbon.</description><subject>Amorphous carbon structure</subject><subject>Molecular model</subject><subject>Pair distribution function</subject><subject>Superfine pulverized coal</subject><subject>Synchrotron radiation-induced X-ray diffraction</subject><issn>0016-2361</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2025</creationdate><recordtype>article</recordtype><recordid>eNp9kM9qxCAQhz200O22L9CTL5BUo2si9LIs_bOw0MvexZiRGrIxaFxon76G9NzT_JiZbxg-hJ4oKSmh4rkvbYKhrEjFS8qYkPIGbUieFBUT9A7dx9gTQupmxzfovL_4MH35FHGcQzJzCoC9xTFNEKwbAU9puEJwP9Bh4_WAWx1z9COetAu4cxlzbZpd7tg0miU8oFurhwiPf3WLzm-v58NHcfp8Px72p8JIIQtpjBa0lQyaqqo73gqrKa2ByaaFmnEKlu0EoQ3Pm7XobCOM5ZyTZqepqBnbomo9a4KPMYBVU3AXHb4VJWpRoXq1qFCLCrWqyNDLCkF-7OogqGgcjAY6F8DMqvPuP_wX0aRrJA</recordid><startdate>20250201</startdate><enddate>20250201</enddate><creator>Chen, Guoqing</creator><creator>Zhou, Zining</creator><creator>Liu, Jiaxun</creator><creator>Yang, Xiuchao</creator><creator>Wu, Fang</creator><creator>Zhong, Xinyu</creator><creator>Han, Xiangxin</creator><creator>Liu, Jianguo</creator><creator>Jiang, Xiumin</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0009-0007-1265-4502</orcidid><orcidid>https://orcid.org/0000-0002-9350-4755</orcidid></search><sort><creationdate>20250201</creationdate><title>Amorphous structure of superfine pulverized coal based on pair distribution function</title><author>Chen, Guoqing ; Zhou, Zining ; Liu, Jiaxun ; Yang, Xiuchao ; Wu, Fang ; Zhong, Xinyu ; Han, Xiangxin ; Liu, Jianguo ; Jiang, Xiumin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c969-9cca61b93e8227d4b6fa117e398be7341ef35601849cc76df86cf444085a16733</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2025</creationdate><topic>Amorphous carbon structure</topic><topic>Molecular model</topic><topic>Pair distribution function</topic><topic>Superfine pulverized coal</topic><topic>Synchrotron radiation-induced X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Guoqing</creatorcontrib><creatorcontrib>Zhou, Zining</creatorcontrib><creatorcontrib>Liu, Jiaxun</creatorcontrib><creatorcontrib>Yang, Xiuchao</creatorcontrib><creatorcontrib>Wu, Fang</creatorcontrib><creatorcontrib>Zhong, Xinyu</creatorcontrib><creatorcontrib>Han, Xiangxin</creatorcontrib><creatorcontrib>Liu, Jianguo</creatorcontrib><creatorcontrib>Jiang, Xiumin</creatorcontrib><collection>CrossRef</collection><jtitle>Fuel (Guildford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Guoqing</au><au>Zhou, Zining</au><au>Liu, Jiaxun</au><au>Yang, Xiuchao</au><au>Wu, Fang</au><au>Zhong, Xinyu</au><au>Han, Xiangxin</au><au>Liu, Jianguo</au><au>Jiang, Xiumin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Amorphous structure of superfine pulverized coal based on pair distribution function</atitle><jtitle>Fuel (Guildford)</jtitle><date>2025-02-01</date><risdate>2025</risdate><volume>381</volume><spage>133699</spage><pages>133699-</pages><artnum>133699</artnum><issn>0016-2361</issn><abstract>[Display omitted] •The long-range and short-range structures of amorphous carbon were characterized.•XRD data were processed using the Ruland and Smarsly method and the Pair Distribution Function.•Carbon structural transformations of coal under mechanochemical and acid treatment effects were observed.•The effects of functional group, coal rank, particle size, and especially defects on coal layer structure were analyzed. The amorphous carbon structure of coal exhibits many intriguing properties during particle size reduction, which can be accurately characterized by atom pair distribution function. Here, the synchrotron radiation-induced X-ray diffraction is employed to investigate the local structure of superfine pulverized coal, while the combined illustration of long-range average structural parameters is introduced to support the findings based on local structural analysis. The influences of particle size, coal rank, and demineralization are emphasized. In addition, the evolution of amorphous carbon structure during coal superfine comminution is focused on. Results indicate that the amorphous carbon structure contains mainly 2H graphite and graphene crystal structures. During the grinding, bituminous coal exhibits numerous defects and dislocations due to mechanical forces, resulting in the leftward shifts in peak positions. In contrast, anthracite’s mixed structure transitions from 2H graphite to multilayer graphene. It is worth noting that around the particle size of 20 µm, there is a noticeable turning point in the peak parameters, causing the variations of peak positions and intensities. In addition, after the acid treatment, the removal of minerals causes the peak positions to shift leftward both coals. Simultaneously, the amorphous carbon undergoes rearrangement, leading to changes in peak values. Combined the short- and long-range structural analysis, the work reveals the molecular-level changes in amorphous carbon structure in coal, which innovatively explains the evolution in defect types under mechanochemical effects. The findings contribute to better understanding of coal macromolecular models, which provide new perspectives for inspecting inherent nature of coal amorphous carbon.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.fuel.2024.133699</doi><orcidid>https://orcid.org/0009-0007-1265-4502</orcidid><orcidid>https://orcid.org/0000-0002-9350-4755</orcidid></addata></record>
fulltext fulltext
identifier ISSN: 0016-2361
ispartof Fuel (Guildford), 2025-02, Vol.381, p.133699, Article 133699
issn 0016-2361
language eng
recordid cdi_crossref_primary_10_1016_j_fuel_2024_133699
source Elsevier
subjects Amorphous carbon structure
Molecular model
Pair distribution function
Superfine pulverized coal
Synchrotron radiation-induced X-ray diffraction
title Amorphous structure of superfine pulverized coal based on pair distribution function
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T19%3A20%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-elsevier_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Amorphous%20structure%20of%20superfine%20pulverized%20coal%20based%20on%20pair%20distribution%20function&rft.jtitle=Fuel%20(Guildford)&rft.au=Chen,%20Guoqing&rft.date=2025-02-01&rft.volume=381&rft.spage=133699&rft.pages=133699-&rft.artnum=133699&rft.issn=0016-2361&rft_id=info:doi/10.1016/j.fuel.2024.133699&rft_dat=%3Celsevier_cross%3ES0016236124028485%3C/elsevier_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c969-9cca61b93e8227d4b6fa117e398be7341ef35601849cc76df86cf444085a16733%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true