PMID- 36677884
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20230123
LR  - 20230124
IS  - 1420-3049 (Electronic)
IS  - 1420-3049 (Linking)
VI  - 28
IP  - 2
DP  - 2023 Jan 13
TI  - A Heterostructure Photoelectrode Based on Two-Dimensional Covalent Organic 
      Framework Film Decorated TiO(2) Nanotube Arrays for Enhanced Photoelectrochemical 
      Hydrogen Generation.
LID - 10.3390/molecules28020822 [doi]
LID - 822
AB  - The well-defined heterostructure of the photocathode is desirable for 
      photoelectrochemically producing hydrogen from aqueous solutions. Herein, 
      enhanced heterostructures were fabricated based on typical stable covalent 
      organic framework (TpPa-1) films and TiO(2) nanotube arrays (NTAs) as a 
      proof-of-concept model to tune the photoelectrochemical (PEC) hydrogen generation 
      by tailoring the photoelectrode microstructure and interfacial charge transport. 
      Ultrathin TpPa-1 films were uniformly grown on the surface of TiO(2) NTAs via a 
      solvothermal condensation of building blocks by tuning the monomer concentration. 
      The Pt(1)@TpPa-1/TiO(2)-NTAs photoelectrode with single-atom Pt(1) as a 
      co-catalyst demonstrated improved visible-light response, enhanced 
      photoconductance, lower onset potential, and decreased Tafel slope value for 
      hydrogen evolution. The hydrogen evolution rate of the Pt(1)@TpPa-1/TiO(2)-NTAs 
      photoelectrode was five times that of Pt(1)@TpPa-1 under AM 1.5 simulated 
      sunlight irradiation and the bias voltage of 0 V. A lower overpotential was 
      recorded as 77 mV@10 mA cm(-2) and a higher photocurrent density as 1.63 mA 
      cm(-2). The hydrogen evolution performance of Pt(1)@TpPa-1/TiO(2)-NTAs 
      photoelectrodes may benefit from the well-matched band structures, effective 
      charge separation, lower interfacial resistance, abundant interfacial 
      microstructural sites, and surficial hydrophilicity. This work may raise a 
      promising way to design an efficient PEC system for hydrogen evolution by tuning 
      well-defined heterojunctions and interfacial microstructures.
FAU - Zhang, Yue
AU  - Zhang Y
AD  - School of Science, China University of Geosciences (Beijing), Beijing 100083, 
      China.
FAU - Li, Yujie
AU  - Li Y
AD  - School of Science, China University of Geosciences (Beijing), Beijing 100083, 
      China.
FAU - Yu, Jing
AU  - Yu J
AD  - School of Science, China University of Geosciences (Beijing), Beijing 100083, 
      China.
FAU - Sun, Bing
AU  - Sun B
AUID- ORCID: 0000-0001-5917-3094
AD  - School of Science, China University of Geosciences (Beijing), Beijing 100083, 
      China.
FAU - Shang, Hong
AU  - Shang H
AD  - School of Science, China University of Geosciences (Beijing), Beijing 100083, 
      China.
LA  - eng
GR  - 2652019113/Fundamental Research Funds for the Central Universities/
GR  - 21802128/National Natural Science Foundation of China/
GR  - 22001240/National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20230113
PL  - Switzerland
TA  - Molecules
JT  - Molecules (Basel, Switzerland)
JID - 100964009
SB  - IM
PMC - PMC9865276
OTO - NOTNLM
OT  - covalent organic framework
OT  - heterostructure
OT  - photocatalytic hydrogen generation
OT  - surface modification
OT  - two-dimensional materials
COIS- The authors declare no conflict of interest.
EDAT- 2023/01/22 06:00
MHDA- 2023/01/22 06:01
PMCR- 2023/01/13
CRDT- 2023/01/21 01:44
PHST- 2022/12/28 00:00 [received]
PHST- 2023/01/09 00:00 [revised]
PHST- 2023/01/12 00:00 [accepted]
PHST- 2023/01/21 01:44 [entrez]
PHST- 2023/01/22 06:00 [pubmed]
PHST- 2023/01/22 06:01 [medline]
PHST- 2023/01/13 00:00 [pmc-release]
AID - molecules28020822 [pii]
AID - molecules-28-00822 [pii]
AID - 10.3390/molecules28020822 [doi]
PST - epublish
SO  - Molecules. 2023 Jan 13;28(2):822. doi: 10.3390/molecules28020822.