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Title: Rational Design and Nanoscale Integration of Multi-Heterostructures as Highly Efficient Photocatalysts

Abstract

The central goal of this project is to design and synthesize complex multi-hetero-nanostructures and fundamental investigation of their potential as efficient and robust photocatalysts. Specifically, the project aims to develop a nanoscale light-harvesting antenna that can efficiently convert solar photon energy into excited electrons and holes, and integrate such antenna with efficient redox nanocatalysts that can harness the photo-generated carriers for productive electrochemical processes. Focusing on this central goal, we have investigated several potential light-harvesting antennas including: silicon nanowires, nitrogen-doped TiO2 nanowires and the emerging perovskite materials. We also devoted considerable effort in developing electrocatalysts including: hydrogen evolution reaction (HER) catalysts, oxygen evolution reaction (OER) catalysts and oxygen reduction reaction catalysts (ORR). In previous annual reports, we have described our effort in the synthesis and photoelectrochemical properties of silicon, TiO2, perovskite-based materials and heterostructures. Here, we focus our discussion on the recent effort in investigating charge transport dynamics in organolead halide perovskites, as well as carbon nanostructure and platinum nanostructure-based electrocatalysts for energy conversion and storage.

Authors:
 [1]
  1. Univ. of California, Los Angeles, CA (United States)
Publication Date:
Research Org.:
Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1406892
Report Number(s):
DOE-UCLA-DE-SC0008055-5
DOE Contract Number:
SC0008055
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; photocatalyst; electrocatalyst; light-harvesting; hydrogen evolution reaction; oxygen evolution reaction; oxygen reduction reaction

Citation Formats

Duan, Xiangfeng. Rational Design and Nanoscale Integration of Multi-Heterostructures as Highly Efficient Photocatalysts. United States: N. p., 2017. Web. doi:10.2172/1406892.
Duan, Xiangfeng. Rational Design and Nanoscale Integration of Multi-Heterostructures as Highly Efficient Photocatalysts. United States. doi:10.2172/1406892.
Duan, Xiangfeng. Fri . "Rational Design and Nanoscale Integration of Multi-Heterostructures as Highly Efficient Photocatalysts". United States. doi:10.2172/1406892. https://www.osti.gov/servlets/purl/1406892.
@article{osti_1406892,
title = {Rational Design and Nanoscale Integration of Multi-Heterostructures as Highly Efficient Photocatalysts},
author = {Duan, Xiangfeng},
abstractNote = {The central goal of this project is to design and synthesize complex multi-hetero-nanostructures and fundamental investigation of their potential as efficient and robust photocatalysts. Specifically, the project aims to develop a nanoscale light-harvesting antenna that can efficiently convert solar photon energy into excited electrons and holes, and integrate such antenna with efficient redox nanocatalysts that can harness the photo-generated carriers for productive electrochemical processes. Focusing on this central goal, we have investigated several potential light-harvesting antennas including: silicon nanowires, nitrogen-doped TiO2 nanowires and the emerging perovskite materials. We also devoted considerable effort in developing electrocatalysts including: hydrogen evolution reaction (HER) catalysts, oxygen evolution reaction (OER) catalysts and oxygen reduction reaction catalysts (ORR). In previous annual reports, we have described our effort in the synthesis and photoelectrochemical properties of silicon, TiO2, perovskite-based materials and heterostructures. Here, we focus our discussion on the recent effort in investigating charge transport dynamics in organolead halide perovskites, as well as carbon nanostructure and platinum nanostructure-based electrocatalysts for energy conversion and storage.},
doi = {10.2172/1406892},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Nov 03 00:00:00 EDT 2017},
month = {Fri Nov 03 00:00:00 EDT 2017}
}

Technical Report:

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