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Title: Self-Assembled One-Dimensional Porphyrin Nanostructures with Enhanced Photocatalytic Hydrogen Generation

There has been a widespread interest in the preparation of self-assembled porphyrin nanostructures and their ordered arrays, aiming to emulate natural light harvesting processes and energy storage and to develop new nanostructured materials for photocatalytic process. In this paper, we report controlled synthesis of one-dimensional porphyrin nanostructures such as nanorods and nanowires with well-defined self-assembled porphyrin networks that enable efficient energy transfer for enhanced photocatalytic activity in hydrogen generation. Preparation of these one-dimensional nanostructures is conducted through noncovalent self-assembly of porphyrins confined within surfactant micelles. X-ray diffraction and transmission electron microscopy results reveal that these one-dimensional nanostructures contain stable single crystalline structures with controlled interplanar separation distance. Optical absorption characterizations show that the self-assembly enables effective optical coupling of porphyrins, resulting in much more enhanced optical absorption in comparison with the original porphyrin monomers, and the absorption bands red shift to more extensive visible light spectrum. Finally, the self-assembled porphyrin network facilitates efficient energy transfer among porphyrin molecules and the delocalization of excited state electrons for enhanced photocatalytic hydrogen production under visible light.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ; ORCiD logo [2]
  1. Henan Univ., Kaifeng (China). Key Lab. for Special Functional Materials of the Ministry of Education. Collaborative Innovation Center of Nano Functional Materials and Applications
  2. Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Chemical and Biological Engineering; Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
SAND-2018-9721J
Journal ID: ISSN 1530-6984; 667612
Grant/Contract Number:
NA0003525; 21422102; 21771055; U1604139; 21601049; 21171049; 174200510019; PCS IRT_15R18
Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 18; Journal Issue: 1; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Henan Univ., Kaifeng (China)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration (NNSA); National Natural Science Foundation of China (NNSFC); Plan for Scientific Innovation Talent of Henan Province (China); Program for Changjiang Scholars and Innovative Research Team in University (China)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; hydrogen evolution; porphyrins; self-assembly; visible light photocatalytic
OSTI Identifier:
1472258

Zhang, Na, Wang, Liang, Wang, Haimiao, Cao, Ronghui, Wang, Jiefei, Bai, Feng, and Fan, Hongyou. Self-Assembled One-Dimensional Porphyrin Nanostructures with Enhanced Photocatalytic Hydrogen Generation. United States: N. p., Web. doi:10.1021/acs.nanolett.7b04701.
Zhang, Na, Wang, Liang, Wang, Haimiao, Cao, Ronghui, Wang, Jiefei, Bai, Feng, & Fan, Hongyou. Self-Assembled One-Dimensional Porphyrin Nanostructures with Enhanced Photocatalytic Hydrogen Generation. United States. doi:10.1021/acs.nanolett.7b04701.
Zhang, Na, Wang, Liang, Wang, Haimiao, Cao, Ronghui, Wang, Jiefei, Bai, Feng, and Fan, Hongyou. 2017. "Self-Assembled One-Dimensional Porphyrin Nanostructures with Enhanced Photocatalytic Hydrogen Generation". United States. doi:10.1021/acs.nanolett.7b04701. https://www.osti.gov/servlets/purl/1472258.
@article{osti_1472258,
title = {Self-Assembled One-Dimensional Porphyrin Nanostructures with Enhanced Photocatalytic Hydrogen Generation},
author = {Zhang, Na and Wang, Liang and Wang, Haimiao and Cao, Ronghui and Wang, Jiefei and Bai, Feng and Fan, Hongyou},
abstractNote = {There has been a widespread interest in the preparation of self-assembled porphyrin nanostructures and their ordered arrays, aiming to emulate natural light harvesting processes and energy storage and to develop new nanostructured materials for photocatalytic process. In this paper, we report controlled synthesis of one-dimensional porphyrin nanostructures such as nanorods and nanowires with well-defined self-assembled porphyrin networks that enable efficient energy transfer for enhanced photocatalytic activity in hydrogen generation. Preparation of these one-dimensional nanostructures is conducted through noncovalent self-assembly of porphyrins confined within surfactant micelles. X-ray diffraction and transmission electron microscopy results reveal that these one-dimensional nanostructures contain stable single crystalline structures with controlled interplanar separation distance. Optical absorption characterizations show that the self-assembly enables effective optical coupling of porphyrins, resulting in much more enhanced optical absorption in comparison with the original porphyrin monomers, and the absorption bands red shift to more extensive visible light spectrum. Finally, the self-assembled porphyrin network facilitates efficient energy transfer among porphyrin molecules and the delocalization of excited state electrons for enhanced photocatalytic hydrogen production under visible light.},
doi = {10.1021/acs.nanolett.7b04701},
journal = {Nano Letters},
number = 1,
volume = 18,
place = {United States},
year = {2017},
month = {12}
}