STTR Phase I: NOx Sensors For Internal Combustion Engines

该小型企业技术转让（STTR）第一阶段项目旨在证明开发具有固定参考和金属氧化物覆盖的传感电极的固体电解质NOX传感器的可行性，用于恶劣环境。具体而言，该方法将使用YSZ作为固体电解质，微孔沸石材料涂层作为固定参比电极，金属氧化物作为辅助相以用作传感电极。 持续需要开发能够在恶劣环境中进行测量的坚固可靠的传感器。 传感器的使用带来了许多好处，包括提高能源效率、提高质量、降低废品率和减少排放。 汽车工业还面临进一步减少来自移动的源的废气排放的挑战。1990年《清洁空气法修正案》还要求许多电力和公用事业行业监测排放。排放监测传感器包括用于CO、NOX、O2和碳氢化合物的传感器。 这些传感器在降低成本、选择性、耐用性和可靠性方面需要取得重大进展。 成功开发用于恶劣环境的传感器将为提高生产率、减少废料并在铸造、汽车、公用事业、炼钢、废物处理等广泛行业中达到EPA清洁空气标准提供机会。 用于监测内燃机中NOx的经济高效的在线传感器和测量系统有助于满足EPA法规。

This Small Business Technology Transfer (STTR) Phase I project aims to prove the feasibility of developing a solid electrolyte NOX, sensor with a fixed reference and a metal oxide covered sensing electrode for harsh environments. Specifically, the approach will be to use YSZ as solid electrolyte, a coating of microporous zeolite material as fixed reference electrode and metal oxide as auxiliary phase to function as a sensing electrode. There is a continuing need for the development of rugged and reliable sensors capable of making measurements in the harsh environments. The use of sensors results in many benefits, including improved energy efficiency, better quality, lower scrap rate, and reduced emissions. The automotive industry is also challenged to further reduce exhaust emissions from mobile sources. The 1990 Clean Air Act Amendments will also require many power and utility industries to monitor emissions. Emission monitoring sensors include those for CO, NOX, 02, and hydrocarbons. Major advances in these sensors are required in terms of lower cost, selectivity, durability and reliability. Successful development of the proposed sensor for harsh environments will provide opportunities to increase productivity, decrease scraps, and attain EPA clean air standards in a wide range of industries including foundry, automotive, utility, steel making, waste disposal, and others. A cost-effective, inline sensor and measurement system to monitor NOX in internal combustion engines helps to meet EPA regulations.