Multifunctional Nanoarray Adsorbers for Low Temperature Emission Control

Project: Research project

Project Details


Overview: The proposed effort is built on our NSF-funded Scalable Nanomanufacturing Project effort with award number CBET-1344792(10/1/2013-9/30/2018), entitled SNM: Scalable and Sustainable Hydrothermal Manufacturing of Nano-array based Low Temperature Diesel Oxidation Catalysts. A high-efficiency metal oxide based mesoporous nano-array based monolithic catalyst has been discovered in this effort to effectively reduce the hydrocarbon emission from vehicles at low temperature close to 150 oC, as well as reduce the usage amount of precious metals by a significant fraction. The mesoporosity and high density distribution of the stable metal oxide nano-arrays have enabled very high surface area and high activity toward hydrocarbon oxidation upon low Pt-group metal (PGM) decoration including single atoms with high dispersion.

Intellectual Merit: In this PFI-RP project, surrounding the UConn-Umicore based university-industry partnership, the team will further advance and develop the high-efficiency and low-cost stable metal oxide based mesoporous nanoarray oxidation catalysts in conjunction with the zeolite adsorbers as a new class of multifunctional adsorbers for low temperature emission control. Specifically, scalable continuous hydrothermal and solvathermal processes at temperatures below 200oC will be used to enable the cost-effective manufacturing of large scale stable zeolite/metal oxide based mesoporous nanoarrays. The full-size zeolite/nanoarray based powder catalysts and hybrid monoliths will be processed and validated through probe and simulated exhaust testing, and simulated engine dynamic transient testing, with advantages over conventional powder-form and wash-coated catalysts, such as high catalytic activity at low temperature, robustness, and low materials usage for cost-effective and efficient CO, HCs, and NOx emission control. Economic and market analyses will be conducted over the manufacturing process and the zeolite/oxide hybrid nanoarray catalysts.

Broader Impacts: With the success of proposed project, the new class of zeolite/oxide nanoarray based catalytic converters will provide a game-changer technology to meet the low temperature automotive aftertreatment catalyst need in industry, and potentially rival and replace the state-of-the-art (SOA) washcoated powder monolithic catalysts via reducing the usage of PGM by at least 50%. The product and technology will also help the US sustain its technology leadership in low temperature emission control field and generate millions of revenue through export. Furthermore, it will also contribute to enhancing the sustainability of human society via reducing the usage of critical materials (PGM). Meanwhile, the further solidification of the important university-industry partnership being promoted in this project will form an important model and foundation to help pursue a sustained industrial-university research collaboration eco-system. On the other hand, the project activities are expected to organically integrate academic research, student education including entrepreneurship, and industrial technology commercialization and transfer, through which a number of students are expected to be exposed, specifically including the participation of women and individuals from under-represented group.

Effective start/end date8/1/197/31/22


  • National Science Foundation (NSF): $149,829.00

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