SBIR Phase I: Low Cost Routes to Ultrafine Ceria Mixed-Metal Oxide Powders for Auto Exhaust Catalysts Using Flame Spray Pyrolysis

SBIR 第一阶段：利用火焰喷雾热解生产汽车尾气催化剂用超细二氧化铈混合金属氧化物粉末的低成本途径

• 批准号: 9861146
• 负责人: Anthony Sutorik
• 金额: $ 9.94万
• 依托单位: NANOCEROX, INC..
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9861146&HistoricalAwards=false
• 关键词: SBIR; Phase; Low; Cost; Routes

9861146 This small business innovation Phase I research project concerns flame spray pyrolysis (FSP) of mixed metal precursors in EtOH to produce low cost, mixed metal oxide nanopowders (n powders), with controlled particle size, phase, chemical purity and high surface areas. FSP production of 250 g/h mullite (3Al,O,,2SiO,), P" alumna (Li,,.,,Na, .67AII0.67017)' strontium aluminosilicate (SrO'AI,O,'2SiO,) and CeO, n powders has been proven. As produced powders are unagglomerated, often single crystals with 10 to 100 nm ave. particle sizes and surface areas of 120 to 10 rn~/g. Tal Materials proposes to use FSP to develop new, low cost routes to ZrO/CeO, and PrO~CeO, for automotive three way catalysts (TWCs). FSP provides the potential to produce high surface area, sinter resistant n powders with tailored composition in a single step. The Phase II objectives are to: (1) define how SP process variables and metal ratios control phase and phase purity, particle size and size distribution, and catalytic (oxygen storage capacity) properties of ZrO~CeO, and PrO~CeO, n powders; (2) identify compositions that offer superior catalytic activity with resistance to sintering, and (3) establish FSP design parameters required to scale up to 10 kg/h of n powders. Phase II objectives will be to use Phase I data to: (1) scale up production of n powders to 20 to 50 kg/day; (2) expand the scope of materials reduced to develop new and advanced TWC products; (3) develop related doped n CeO, for other applications, ie. for fuel cells. Currently, the multimillion dollar U.S. Automotive TWC components market is served entirely by non U.S. suppliers (e.g. Rhone Poulenc). Tal Materials, proposes to extend its expertise in the production of mixed metal nanopowders, to produce new, low cost high surface area, sinter resistant and tailored Zr/Ce and Pr/Ce oxide n powders for TWC applications. Tal Materials will work with local Michigan Industry to become a U.S. supplier of TWC components. Expertise developed in the process will provide a new market for Tal and the potential to develop products for related markets, e.g. in solid oxide fuel cells.

9861146这个小型企业创新阶段研究项目涉及ETOH中混合金属前体的火焰喷雾热解（FSP），以产生低成本，混合金属氧化物纳米植物（N粉末），具有控制粒径，相位，化学纯度和高表面积。 FSP生产250 g/h multite（3al，o ,, 2sio，），p“校友（li ,,。首席执行官已被证明是粉末的，通常是单晶体，粒径为10至100 nm。 ZRO/CEO的路线和Pro 〜CEO，用于三种催化剂的汽车（TWC）。 1）定义SP工艺变量和金属比率控制阶段和相位纯度，粒度和尺寸分布以及Zro〜CEO的催化（氧气存储能力）特性，以及Pro〜CEO，N POLDERS；具有对烧结的抗催化活性，（3）建立缩放10 kg/h的N粉末所需的FSP设计参数将使用I期数据来：（1）缩放N粉末的生产至20至50公斤/天； （2）扩大减少的材料范围，以开发新的和高级的TWC产品； （3）为其他应用程序开发相关的掺杂N CEO，即。用于燃料电池。 目前，美国汽车TWC组件市场数百万美元完全由非美国供应商（例如Rhone Poulenc）提供服务。 TAL Materials提议扩展其在混合金属纳米植物的生产方面的专业知识，以生产新的，低成本的高表面积，耐烧结和量身定制的ZR/CE，以及​​用于TWC应用的Pr/Ce氧化物N粉末。 TAL材料将与当地的密歇根州工业合作，成为TWC组件的美国供应商。在此过程中开发的专业知识将为TAL提供一个新市场，并有可能为相关市场开发产品，例如在固体氧化物燃料电池中。