Loading...

Probing Distinct Fullerene Formation Processes from Carbon Precursors of Different Sizes and Structures

Extra Form
author Hugh I Kim
Homepage https://sites.google.com/site/hughkimgroup/
journal Anal. Chem. 2016, Article DOI: 10.1021/acs.analchem.6b02076
Atachment
Attachment '1'
?

Shortcut

PrevPrev Article

NextNext Article

+ - Up Down Comment Print
?

Shortcut

PrevPrev Article

NextNext Article

+ - Up Down Comment Print

Fullerenes, cage-structured carbon allotropes, have been the subject of extensive research as new materials for diverse purposes. Yet, their formation process is still not clearly understood at the molecular level. In this study, we performed laser desorption ionization-ion mobility-mass spectrometry (LDI-IM-MS) of carbon substrates possessing different molecular sizes and structures to understand the formation process of fullerene. Our observations show that the formation process is strongly dependent on the size of the precursor used, with small precursors yielding small fullerenes and large graphitic precursors generally yielding larger fullerenes. These results clearly demonstrate that fullerene formation can proceed via both bottom-up and top-down processes, with the latter being favored for large precursors and more efficient at forming fullerenes. Furthermore, we observed that specific structures of carbon precursors could additionally affect the relative abundance of C60 fullerene. Overall, this study provides an advanced understanding of the mechanistic details underlying the formation processes of fullerene.

 

TOC (1).jpg

 

http://pubs.acs.org/doi/abs/10.1021/acs.analchem.6b02076


  1. Water Dynamics in Cytoplasm-Like Crowded Environment Correlates with the Conformational Transition of the Macromolecular Crowder

    Minhaeng Cho
    http://cmsd.ibs.re.kr/html/cmsd_en/
    Polyethylene glycol (PEG) is a unique polymer material with enormous applicability in many industrial and scientific fields. Here, its use as macromolecular crowder to mimic the cellular environment in vitro is the focus of the present study...
    Date2016.12.16 ByManager Views357
    Read More
  2. Plasmon Enhanced Direct Bandgap Emissions in Cu7S4@Au2S@Au Nanorings

    Kwangyeol Lee
    http://nanolab.korea.ac.kr/
    Nanostructured copper sulfides, promising earth-abundant p-type semiconductors, have found applications in a wide range of fields due to their versatility, tunable low bandgap, and environmental sustainability. The synthesis of hexagonal Cu7...
    Date2016.09.29 ByManager Views451
    Read More
  3. Highly Efficient Fullerene-Free Polymer Solar Cells Fabricated with Polythiophene Derivative

    Han Young Woo
    http://www.ooml.korea.ac.kr/
    A highly efficient fullerene-free polymer solar cell (PSC) based on PDCBT, a polythiophene derivative substituted with alkoxycarbonyl, has achieved an impressive power conversion efficiency of 10.16%, which is the best result in PSCs based o...
    Date2016.09.29 ByManager Views508
    Read More
  4. Low-voltage organic devices based on pristine and self-assembled monolayer-treated HfTiOx gate dielectrics

    Jong-Ho Choi
    http://neslab.campushomepage.com/index2.asp
    Low-voltage organic field-effect transistors (OFETs) and complementary metal oxide semiconductor (CMOS) inverters based on pentacene and N,N′-ditridecylperylene-3,4,9,10-tetracarboxylic diimide (PTCDI-C13) were fabricated on HfTiOx gat...
    Date2016.09.20 ByManager Views371
    Read More
  5. Higher Quantum State Transitions in Colloidal Quantum Dot with Heavy Electron Doping

    Kwang Seob Jeong
    https://sites.google.com/site/ksjkulab/
    Electron occupation in the lowest quantized state of the conduction band (1Se) in the colloidal quantum dot leads to the intraband transition in steady-state (1Se-1Pe). The intraband transition, solely originating from the quantum confinemen...
    Date2016.09.20 ByManager Views389
    Read More
  6. High-harmonic generation: Drive round the twist

    Minhaeng Cho
    http://cmsd.ibs.re.kr/html/cmsd_en/
    Light has long been used to detect the chirality of molecules but high-order harmonic generation now provides access to these chiral interactions on ultrafast timescales. http://www.nature.com/nphys/journal/v11/n8/full/nphys3395.html
    Date2016.09.20 ByManager Views368
    Read More
  7. Gradients of Rectification: Tuning Molecular Electronic Devices by the Controlled Use of Different-Sized Diluents in Heterogeneous Self-Assembled Monolayers

    Hyo Jae Yoon
    Molecular electronics has received significant attention in the last decades. To hone performance of devices, eliminating structural defects in molecular components inside devices is usually needed. We herein demonstrate this problem can be ...
    Date2016.07.29 ByManager Views387
    Read More
  8. Investigation of Charge Carrier Behavior in High Performance Ternary Blend Polymer Solar Cells

    Han Young Woo
    http://www.ooml.korea.ac.kr/
    This study demonstrates high-performance, ternary-blend polymer solar cells by modifying a binary blend bulk heterojunction (PPDT2FBT:PC71BM) with the addition of a ternary component, PPDT2CNBT. PPDT2CNBT is designed to have complementary ab...
    Date2016.07.29 ByManager Views339
    Read More
  9. Adsorption of Carbon Dioxide on Unsaturated Metal Sites in M2(dobpdc) Frameworks with Exceptional Structural Stability and Relation between Lewis Acidity and Adsorption Enthalpy

    Chang Seop Hong
    http://immlab.korea.ac.kr/
    A series of metal–organic frameworks (MOFs) M2(dobpdc) (M=Mn, Co, Ni, Zn; H4dobpdc=4,4′-dihydroxy-1,1′-biphenyl-3,3′-dicarboxylic acid), with a highly dense arrangement of open metal sites along hexagonal channels wer...
    Date2016.07.29 ByManager Views282
    Read More
  10. Programmed activation of cancer cell apoptosis: A tumor-targeted phototherapeutic topoisomerase I inhibitor

    Jong Seung Kim
    http://orgchem.korea.ac.kr/index2.asp
    We report here a tumor-targeting masked phototherapeutic agent 1 (PT-1). This system contains SN-38—a prodrug of the topoisomerase I inhibitor irinotecan. Topoisomerase I is a vital enzyme that controls DNA topology during replication,...
    Date2016.07.29 ByManager Views216
    Read More
  11. Probing Distinct Fullerene Formation Processes from Carbon Precursors of Different Sizes and Structures

    Hugh I Kim
    https://sites.google.com/site/hughkimgroup/
    Fullerenes, cage-structured carbon allotropes, have been the subject of extensive research as new materials for diverse purposes. Yet, their formation process is still not clearly understood at the molecular level. In this study, we performe...
    Date2016.07.29 ByManager Views203
    Read More
  12. Manifesting Subtle Differences of Neutral Hydrophilic Guest Isomers in a Molecular Container by Phase Transfer

    Hugh I. Kim
    https://sites.google.com/site/hughkimgroup/
    Achieving strong host–guest interactions between synthetic hosts and hydrophilic guests in solution is challenging because solvation effects overwhelm other effects. To resolve this issue, we transferred complexes of cucurbit[7]uril (C...
    Date2016.07.29 ByManager Views195
    Read More
Board Pagination ‹ Prev 1 2 Next ›
/ 2

Designed by sketchbooks.co.kr / sketchbook5 board skin

나눔글꼴 설치 안내


이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

설치 Cancel

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Department of Chemistry, Korea University, Tel) +82-2-3290-3120
145 Anam-ro Seongbuk-gu Seoul, 02841, Republic of Korea
Copyright(c) 2014 KOREA UNIVERSITY DEPARTMENT of CHEMISTRY. All right reserved.