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Synthesis of eco-friendly oil-soluble ferrocene-based fuel additive
공호열,김형희,오성희,이찬규,정근우 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
전 세계적으로 대기오염에 대한 관심이 급격히 증가하고 있는 가운데, 수송기기용 연료의 배기가스에 대한 규제가 점차 강화되고 있다. 이러한 국제적인 환경규제에 대응하기 위한 방안으로 Ferrocene계열 화학물질을 연료첨가제로 적용하여 연소효율을 높이려는 연구개발이 많이 진행되어 왔으나, 연료에 대해 첨가된 Ferrocene 자체의 용해도가 매우 낮아 실제로 적용하는데 한계점이 있어왔다. 본 연구에서는 수송기기 연료에 대한 Ferrocene 조연제의 용해도를 높여주기 위해 다양한 알킬체인, 아로메틱체인 등을 도입하여 신규 유용성 Ferrocene계 물질을 성공적으로 합성했으며, 특히 일반적인 Friedel-crafts 알킬레이션 반응시 사용되는 AlCl3 촉매, Chlorinated solvent를 사용하지 않는 친환경적인 합성공정을 개발하였다. 합성된 신규 Ferrocene계 물질은 액상의 오일 형태로 얻어졌으며, 연료와 매우 잘 섞이는 용해도 성질을 보여주었고, 또한 8-12w%의 높은 Fe를 함유하여 실제 연료첨가제로서의 적용 가능성을 보여주었다.
2SE-8 Recent Development and Future of Chemical Sensors for Environmental Monitoring
공호열 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1
Recently, a lot of interest has been received in detection technology of hazardous chemical substances, explosion accident, terrorism, virus attack etc. Sensors to detect a large number of such dangerous chemicals have been developed so far, but there are disadvantages that the price is somewhat high, there are many restrictions on movement in the form of equipment, sensitivity and selectivity are deteriorated . In the future, it is anticipated that sensors will change flexibly according to future trends of electronic technology, and various wearable sensors will be developed. In order to develop these future sensor technologies, it is very important to develop a sensing active layer that is stable, sensitive and selective. In this presentation I would like to talk about development trends and prospects of chemical sensors in addition to such technology.
Organic sensors for detection of hazardous chemicals
공호열 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
Sensors for trace detection of hazardous chemicals have been investigated for environmental remediation, public safety, military and homeland defense applications because of terrorist threats. First, organic field-effect transistor (OFET) based sensors have been proposed and investigated, as OFETs possess advantages of easy tuning of chemical and physical properties, low-cost processing, and mechanical flexibility, and as sensors they offer fast readout on analyte exposure from simple probes and meters. We demonstrated a “turn-on” current response from PQT12:TPT-TTF blend OFETs when exposed to dilute TNT analyte solutions, in contrast to what is generally observed from OFETs exposed to various chemical compounds. Next, Resistive devices including molecularly imprinted polymers (MIPs) active layer were fabricated by simple spin-coating on flexible and transparent substrates in addition to silicon substrates and were stable under ambient temperature and oxygen levels before exposure to the nitroaromatics. Templating, also known in more specific cases as molecular imprinting, has become a widely used method for the preparation of polymeric materials that have the ability to bind a specific chemical species in pores.