Synthesis of carbon nanofibers by thermal conversion of the molecular precursor 5,6; 11,12-dio-phenylenetetracene and its application in a chemiresistive gas sensor

Krauss P.; Wombacher T.; Schneider J. J.

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Synthesis of carbon nanofibers by thermal conversion of the molecular precursor 5,6; 11,12-dio-phenylenetetracene and its application in a chemiresistive gas sensor

机译：分子前体热转化合成碳纳米纤维5,6; 11,12-二氧苯乙烯四烯及其在化工气体传感器中的应用

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Carbon nanofibers with an amorphous solid structure have been synthesized by thermal conversion of the polycyclic aromatic hydrocarbon 5,6; 11,12-di-o-phenylenetetracene (DOPT) at 1000 degrees C on various substrates. Rapid annealing of DOPT on copper foil, SiO2/Si wafer and a SiO2/Si wafer coated with a 20 nm thick layer of Pt/Pd resulted in growth of carbon nanofibers. The most effective synthesis of these fibers was realized on the latter substrate. The Pt/Pd layer segregates by dewetting under thermal treatment and forms metallic nanoparticles on which dense networks of amorphous carbon nanofibers were prepared and these were successfully applied in chemiresistor gas sensor applications for detection of toxic gases, e. g. nitrogen dioxide, ammonia and sulfur dioxide. Using an analyte concentration of parts per million, the nanofibers show a very good response towards NO2 and SO2, whereas exposure to ammonia resulted only in negligible, minor changes in the electrical resistance of the sensor.

机译：通过多环芳烃5,6的热转化合成具有无定形固体结构的碳纳米纤维;在各种基材上以1000℃的11,12-Di-O-苯乙烯（DOPT）。用铜箔的DOPT的快速退火，SiO2 / Si晶片和涂有20nm厚的Pt / Pd层的SiO2 / Si晶片导致碳纳米纤维的生长。在后一种底物上实现了这些纤维最有效的合成。通过在热处理下脱水的Pt / Pd层偏析，形成制备的金属纳米粒子，在该金属纳米颗粒上制备了哪些，这些金属纳米粒子被制备了致密网络，这些含量在化学晶体气体传感器应用中成功地应用于用于检测有毒气体，E。 G。二氧化氮，二氧化硫和二氧化硫。使用分析物浓度的百百万份，纳米纤维显示出对NO2和SO2的非常好的反应，而暴露于氨导致传感器电阻的微小变化。

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《RSC Advances》 |2017年第71期|共10页
作者
Krauss P.; Wombacher T.; Schneider J. J.;
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Tech Univ Darmstadt Eduard Zintl Inst Anorgan &

Phys Chem Alarich Weiss Str 12 D-64287 Darmstadt Germany;

Tech Univ Darmstadt Eduard Zintl Inst Anorgan &

Phys Chem Alarich Weiss Str 12 D-64287 Darmstadt Germany;

Tech Univ Darmstadt Eduard Zintl Inst Anorgan &

Phys Chem Alarich Weiss Str 12 D-64287 Darmstadt Germany;

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中图分类化学;
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1. Synthesis of carbon nanofibers by thermal conversion of the molecular precursor 5,6; 11,12-dio-phenylenetetracene and its application in a chemiresistive gas sensor [J] . Krauss P., Wombacher T., Schneider J. J. RSC Advances . 2017,第71期

机译：分子前体热转化合成碳纳米纤维5,6; 11,12-二氧苯乙烯四烯及其在化工气体传感器中的应用
2. A selective chemiresistive sensor for the cancer-related volatile organic compound hexanal by using molecularly imprinted polymers and multiwalled carbon nanotubes [J] . Janfaza Sajjad, Nojavani Maryam Banan, Nikkhah Maryam, Mikrochimica Acta: An International Journal for Physical and Chemical Methods of Analysis . 2019,第3期

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4. Synthesis of Size-Tunable Spherical Carbon Nanoparticles By Polymerization of Sp-Carbon Rich Precursors and Characterization of Optical Properties for Energy Conversion and Storage Applications [C] . Vijay K. Jayswal, Anna M. Ritcey, Jean-Francois Morin Meeting of the Electrochemical Society;International Meeting on Chemical Sensors . 2020

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5. Synthesis and characterization of novel hierarchically functionalized carbon nanofibers for energy conversion and storage applications. [D] . Zhou, Zhengping. 2014

机译：用于能量转换和存储应用的新型分级功能化碳纳米纤维的合成与表征。
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7. Synthesis of carbon nanofibers by thermal conversion of the molecular precursor 5,6;11,12-di-o-phenylenetetracene and its application in a chemiresistive gas sensor [O] . P. Krauß, T. Wombacher, J. J. Schneider 2017

机译：分子前体5,6的热转化合成碳纳米纤维。11,12-DI-O-苯基丁环烯及其在化学气体传感器中的应用
8. 5,6:11,12-Bis(ditelluro) Tetracene: Synthesis, Molecular and Supramolecular Properties [R] . Sandman, D. J., Stark, J. C., Foxman, B. M. 1982

机译：5,6：11,12-双（二硝基）噻吩：合成，分子和超分子性质

Synthesis of carbon nanofibers by thermal conversion of the molecular precursor 5,6; 11,12-dio-phenylenetetracene and its application in a chemiresistive gas sensor

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