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Performance and Solution Structures of Side-Chain-Bridged Oligo (Ethylene Glycol) Polymer Photocatalysts for Enhanced Hydrogen Evolution under Natural Light Illumination.
Huang, Tse-Fu; Liu, Jia-Jen; Lai, Ze-Yu; Chang, Je-Wei; Zhuang, Ying-Rang; Jiang, Zi-Cheng; Chang, Chih-Li; Lin, Wei-Cheng; Chen, Yan-Heng; Wu, Yi-Hsiang; Sun, Yu-En; Luo, Ting-An; Chen, Yi-Kuan; Yen, Jui-Chen; Hsu, Hung-Kai; Chen, Bo-Han; Ting, Li-Yu; Lu, Chia-Yeh; Lin, Yu-Tung; Hsu, Ling-Yu; Wu, Tien-Lin; Yang, Shang-Da; Su, An-Chung; Jeng, U-Ser; Chou, Ho-Hsiu.
Afiliação
  • Huang TF; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Liu JJ; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Lai ZY; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Chang JW; National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan.
  • Zhuang YR; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Jiang ZC; National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan.
  • Chang CL; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Lin WC; Institute of Photonics Technologies & Department of Electrical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Chen YH; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Wu YH; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Sun YE; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Luo TA; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Chen YK; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Yen JC; Department of Chemistry, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Hsu HK; Department of Chemistry, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Chen BH; Institute of Photonics Technologies & Department of Electrical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Ting LY; Institute of Photonics Technologies & Department of Electrical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Lu CY; Institute of Photonics Technologies & Department of Electrical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Lin YT; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Hsu LY; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Wu TL; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Yang SD; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Su AC; Department of Chemistry, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Jeng US; Institute of Photonics Technologies & Department of Electrical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
  • Chou HH; Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 300044, Taiwan.
Small ; 20(6): e2304743, 2024 Feb.
Article em En | MEDLINE | ID: mdl-37803930
ABSTRACT
Converting solar energy into hydrogen energy using conjugated polymers (CP) is a promising solution to the energy crisis. Improving water solubility plays one of the critical factors in enhancing the hydrogen evolution rate (HER) of CP photocatalysts. In this study, a novel concept of incorporating hydrophilic side chains to connect the backbones of CPs to improve their HER is proposed. This concept is realized through the polymerization of carbazole units bridged with octane, ethylene glycol, and penta-(ethylene glycol) to form three new side-chain-braided (SCB) CPs PCz2S-OCt, PCz2S-EG, and PCz2S-PEG. Verified through transient absorption spectra, the enhanced capability of PCz2S-PEG for ultrafast electron transfer and reduced recombination effects has been demonstrated. Small- and wide-angle X-ray scattering (SAXS/WAXS) analyses reveal that these three SCB-CPs form cross-linking networks with different mass fractal dimensions (f) in aqueous solution. With the lowest f value of 2.64 and improved water/polymer interfaces, PCz2S-PEG demonstrates the best HER, reaching up to 126.9 µmol h-1 in pure water-based photocatalytic solution. Moreover, PCz2S-PEG exhibits comparable performance in seawater-based photocatalytic solution under natural sunlight. In situ SAXS analysis further reveals nucleation-dominated generation of hydrogen nanoclusters with a size of ≈1.5 nm in the HER of PCz2S-PEG under light illumination.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Small Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Taiwan
Texto completo
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XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Small Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Taiwan