Hierarchical self-assembled structure and frictional response of phthalocyanine molecules
Solid evidence is needed to demonstrate the effect of molecular orientation and structure on the frictional property of boundary lubricants. In this work, the frictional properties of phthalocyanine self-assembled monolayers (SAMs) with face-on (aromatic cores parallel to the substrate) and edge-on...
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| Veröffentlicht in: | Friction 2023-03, Vol.11 (3), p.354-368 |
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| creator | Qiao, Yijun Song, Jian Shi, Hongyu Wang, Hongdong Wen, Shizhu Liu, Yuhong |
| description | Solid evidence is needed to demonstrate the effect of molecular orientation and structure on the frictional property of boundary lubricants. In this work, the frictional properties of phthalocyanine self-assembled monolayers (SAMs) with face-on (aromatic cores parallel to the substrate) and edge-on (aromatic cores stand on the substrate) orientations have been compared and the
in situ
structural variation of edge-on SAMs under frictional shear has been revealed by atomic force microscope (AFM). Face-on oriented SAMs show lower adhesion, lower friction, and stronger wear resistance, compared with edge-on oriented SAMs. Hierarchical structures of edge-on oriented SAMs have been revealed by frictional topography, which are consisted of nanoscale columns, micron-scale stripes, and centimeter-scale monolayer. The column structure deforms under increasing load force, leading to a stepwise friction force curve and a transition among three friction states (ordered friction, collapsed friction, and worn friction). The structural deformation depends on both the order degree and anisotropic stiffness of columns. Columns in phthalocyanine SAMs show a larger stiffness when shearing against molecular plane than shearing along the molecular plane. The presented study on the interfacial structure and frictional mechanism promisingly supports the designing of novel boundary lubricants and their application in engineering. |
| doi_str_mv | 10.1007/s40544-021-0588-z |
| format | Article |
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in situ
structural variation of edge-on SAMs under frictional shear has been revealed by atomic force microscope (AFM). Face-on oriented SAMs show lower adhesion, lower friction, and stronger wear resistance, compared with edge-on oriented SAMs. Hierarchical structures of edge-on oriented SAMs have been revealed by frictional topography, which are consisted of nanoscale columns, micron-scale stripes, and centimeter-scale monolayer. The column structure deforms under increasing load force, leading to a stepwise friction force curve and a transition among three friction states (ordered friction, collapsed friction, and worn friction). The structural deformation depends on both the order degree and anisotropic stiffness of columns. Columns in phthalocyanine SAMs show a larger stiffness when shearing against molecular plane than shearing along the molecular plane. The presented study on the interfacial structure and frictional mechanism promisingly supports the designing of novel boundary lubricants and their application in engineering.</description><identifier>ISSN: 2223-7690</identifier><identifier>EISSN: 2223-7704</identifier><identifier>DOI: 10.1007/s40544-021-0588-z</identifier><language>eng</language><publisher>Beijing: Tsinghua University Press</publisher><subject>Columnar structure ; Corrosion and Coatings ; Deformation ; Engineering ; Friction ; Lubricants ; Lubrication ; Mechanical Engineering ; Molecular structure ; Monolayers ; Nanotechnology ; Orientation effects ; Physical Chemistry ; Research Article ; Self-assembled monolayers ; Self-assembly ; Shearing ; Stiffness ; Substrates ; Surfaces and Interfaces ; Thin Films ; Tribology ; Wear resistance</subject><ispartof>Friction, 2023-03, Vol.11 (3), p.354-368</ispartof><rights>The author(s) 2021</rights><rights>The author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-7e47b319da76ae691f50a3b8801fb7cdf1e0df097b37c992931b71eefccf544e3</citedby><cites>FETCH-LOGICAL-c391t-7e47b319da76ae691f50a3b8801fb7cdf1e0df097b37c992931b71eefccf544e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s40544-021-0588-z$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://doi.org/10.1007/s40544-021-0588-z$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,27903,27904,41099,42168,51554</link.rule.ids></links><search><creatorcontrib>Qiao, Yijun</creatorcontrib><creatorcontrib>Song, Jian</creatorcontrib><creatorcontrib>Shi, Hongyu</creatorcontrib><creatorcontrib>Wang, Hongdong</creatorcontrib><creatorcontrib>Wen, Shizhu</creatorcontrib><creatorcontrib>Liu, Yuhong</creatorcontrib><title>Hierarchical self-assembled structure and frictional response of phthalocyanine molecules</title><title>Friction</title><addtitle>Friction</addtitle><description>Solid evidence is needed to demonstrate the effect of molecular orientation and structure on the frictional property of boundary lubricants. In this work, the frictional properties of phthalocyanine self-assembled monolayers (SAMs) with face-on (aromatic cores parallel to the substrate) and edge-on (aromatic cores stand on the substrate) orientations have been compared and the
in situ
structural variation of edge-on SAMs under frictional shear has been revealed by atomic force microscope (AFM). Face-on oriented SAMs show lower adhesion, lower friction, and stronger wear resistance, compared with edge-on oriented SAMs. Hierarchical structures of edge-on oriented SAMs have been revealed by frictional topography, which are consisted of nanoscale columns, micron-scale stripes, and centimeter-scale monolayer. The column structure deforms under increasing load force, leading to a stepwise friction force curve and a transition among three friction states (ordered friction, collapsed friction, and worn friction). The structural deformation depends on both the order degree and anisotropic stiffness of columns. Columns in phthalocyanine SAMs show a larger stiffness when shearing against molecular plane than shearing along the molecular plane. The presented study on the interfacial structure and frictional mechanism promisingly supports the designing of novel boundary lubricants and their application in engineering.</description><subject>Columnar structure</subject><subject>Corrosion and Coatings</subject><subject>Deformation</subject><subject>Engineering</subject><subject>Friction</subject><subject>Lubricants</subject><subject>Lubrication</subject><subject>Mechanical Engineering</subject><subject>Molecular structure</subject><subject>Monolayers</subject><subject>Nanotechnology</subject><subject>Orientation effects</subject><subject>Physical Chemistry</subject><subject>Research Article</subject><subject>Self-assembled monolayers</subject><subject>Self-assembly</subject><subject>Shearing</subject><subject>Stiffness</subject><subject>Substrates</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><subject>Tribology</subject><subject>Wear resistance</subject><issn>2223-7690</issn><issn>2223-7704</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kD1PwzAQhi0EElXpD2CLxGw4fySOR1QBRarEAgOT5ThnGpQmwU6G9tfjKiAmprvheV_dPYRcM7hlAOouSsilpMAZhbws6fGMLDjngioF8vx3LzRcklWMTQVCCp4zBQvyvmkw2OB2jbNtFrH11MaI-6rFOotjmNw4BcxsV2c-NG5s-i5xAePQdxGz3mfDbtzZtncH2zUdZvu-RTe1GK_IhbdtxNXPXJK3x4fX9YZuX56e1_db6oRmI1UoVSWYrq0qLBaa-RysqMoSmK-Uqz1DqD3oBCmnNdeCVYoheud8ehrFktzMvUPovyaMo_nsp5CujIYryTUwXshEsZlyoY8xoDdDaPY2HAwDc5JoZokmSTQnieaYMnzOxMR2Hxj-mv8PfQP-5HcP</recordid><startdate>20230301</startdate><enddate>20230301</enddate><creator>Qiao, Yijun</creator><creator>Song, Jian</creator><creator>Shi, Hongyu</creator><creator>Wang, Hongdong</creator><creator>Wen, Shizhu</creator><creator>Liu, Yuhong</creator><general>Tsinghua University Press</general><general>Springer Nature B.V</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RQ</scope><scope>7XB</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M2O</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PADUT</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>U9A</scope></search><sort><creationdate>20230301</creationdate><title>Hierarchical self-assembled structure and frictional response of phthalocyanine molecules</title><author>Qiao, Yijun ; Song, Jian ; Shi, Hongyu ; Wang, Hongdong ; Wen, Shizhu ; Liu, Yuhong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-7e47b319da76ae691f50a3b8801fb7cdf1e0df097b37c992931b71eefccf544e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Columnar structure</topic><topic>Corrosion and Coatings</topic><topic>Deformation</topic><topic>Engineering</topic><topic>Friction</topic><topic>Lubricants</topic><topic>Lubrication</topic><topic>Mechanical Engineering</topic><topic>Molecular structure</topic><topic>Monolayers</topic><topic>Nanotechnology</topic><topic>Orientation effects</topic><topic>Physical Chemistry</topic><topic>Research Article</topic><topic>Self-assembled monolayers</topic><topic>Self-assembly</topic><topic>Shearing</topic><topic>Stiffness</topic><topic>Substrates</topic><topic>Surfaces and Interfaces</topic><topic>Thin Films</topic><topic>Tribology</topic><topic>Wear resistance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiao, Yijun</creatorcontrib><creatorcontrib>Song, Jian</creatorcontrib><creatorcontrib>Shi, Hongyu</creatorcontrib><creatorcontrib>Wang, Hongdong</creatorcontrib><creatorcontrib>Wen, Shizhu</creatorcontrib><creatorcontrib>Liu, Yuhong</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Career & Technical Education Database</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Research Library</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Research Library China</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Friction</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiao, Yijun</au><au>Song, Jian</au><au>Shi, Hongyu</au><au>Wang, Hongdong</au><au>Wen, Shizhu</au><au>Liu, Yuhong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hierarchical self-assembled structure and frictional response of phthalocyanine molecules</atitle><jtitle>Friction</jtitle><stitle>Friction</stitle><date>2023-03-01</date><risdate>2023</risdate><volume>11</volume><issue>3</issue><spage>354</spage><epage>368</epage><pages>354-368</pages><issn>2223-7690</issn><eissn>2223-7704</eissn><abstract>Solid evidence is needed to demonstrate the effect of molecular orientation and structure on the frictional property of boundary lubricants. In this work, the frictional properties of phthalocyanine self-assembled monolayers (SAMs) with face-on (aromatic cores parallel to the substrate) and edge-on (aromatic cores stand on the substrate) orientations have been compared and the
in situ
structural variation of edge-on SAMs under frictional shear has been revealed by atomic force microscope (AFM). Face-on oriented SAMs show lower adhesion, lower friction, and stronger wear resistance, compared with edge-on oriented SAMs. Hierarchical structures of edge-on oriented SAMs have been revealed by frictional topography, which are consisted of nanoscale columns, micron-scale stripes, and centimeter-scale monolayer. The column structure deforms under increasing load force, leading to a stepwise friction force curve and a transition among three friction states (ordered friction, collapsed friction, and worn friction). The structural deformation depends on both the order degree and anisotropic stiffness of columns. Columns in phthalocyanine SAMs show a larger stiffness when shearing against molecular plane than shearing along the molecular plane. The presented study on the interfacial structure and frictional mechanism promisingly supports the designing of novel boundary lubricants and their application in engineering.</abstract><cop>Beijing</cop><pub>Tsinghua University Press</pub><doi>10.1007/s40544-021-0588-z</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Columnar structure Corrosion and Coatings Deformation Engineering Friction Lubricants Lubrication Mechanical Engineering Molecular structure Monolayers Nanotechnology Orientation effects Physical Chemistry Research Article Self-assembled monolayers Self-assembly Shearing Stiffness Substrates Surfaces and Interfaces Thin Films Tribology Wear resistance |
| title | Hierarchical self-assembled structure and frictional response of phthalocyanine molecules |
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