Su C.-JHwang D.WLin S.-HBIH-YAW JINHwang L.-P.2022-12-142022-12-14200214602733https://www.scopus.com/inward/record.uri?eid=2-s2.0-0038576948&doi=10.1039%2fb110151j&partnerID=40&md5=5df831145f1e5e9a0666a7872756408fhttps://scholars.lib.ntu.edu.tw/handle/123456789/626352Novel self-organized carbon nanoropes consisting of three helically coiled multi-wall nanotubes with a remarkable constant pitch over several microns were grown by the lanthanide oxide-catalyzed decomposition of gaseous acetylene on aluminophosphate (AlPO4-5) support. Direct characterization by the stereo transmission electron microscope and scanning electron microscope has convincingly shown that these three strands entwine with each other helically, which are presumably kept together by both the spontaneous curvature and van der Waals (vdW) attraction. © The Royal Society of Chemistry 2002.acetylene; aluminum; carbon; lanthanide; oxide; phosphate; alpha helix; article; catalysis; catalyst; decomposition; gas analysis; molecular dynamics; molecular interaction; molecular mechanics; nanoparticle; nanotube; reaction analysis; scanning electron microscope; stereochemistry; transmission electron microscopyjournal article10.1039/b110151j2-s2.0-0038576948