Three-dimensional (3-D) integration of nanostructures or nanostructure arrays into applicable platforms or devices represents the need for meeting ever-increasing demands of human beings for cost-effectiveness, structure sophistication, multi-function enabling, while simplified and efficient practical operations. Such an integration process generally involves a diverse array of nanostructured entities that include various dissimilar nanoscale building blocks such as nanoparticles, nanowires, and nanofilms made of metals, ceramics, or polymers in the nanoscale form. In this talk, I will highlight our latest research progress on the 2-D and 3-D metal oxide and metal based nanostructure integrations toward applicable energy devices, specifically on the nanoarray integrated microreactors for conversion and production of clean and renewable energies such as hydrogen and methanol. The underpinned new materials discovery and device enabling process represents a constant pursuit of ultrahigh efficiency, robustness, and improved functionality in order to practically and better bridge the gap between nanoscience and nanotechnology in energy and environmental applications. Examples as the connecting dots will depart from our decade-long effort in nano-engineered catalytic exhaust aftertreatment, nanomanufacturing, to catalytic water splitting and CO<sub>2</sub> transformation into methanol, intending to draw a unique nanomaterials roadmap toward multifunctional and scalable 3-D integration.

Heterogeneous nanostructure integration for energy conversion and production

2019 Fall National Meeting

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