TY - JOUR
T1 - Hydrogen generation ability of B-site substituted two-dimensional Can-1Tin-3Nb3O3n+1− perovskite nanosheets in photoelectrochemical cell
AU - Le, Thi Bao Ngoc
AU - Chang, Chia-Wei
AU - Su, Yen Hsun
N1 - Funding Information:
This work was supported by the Ministry of Science and Technology, Taiwan, under Grants MOST109 - 2221 - E - 006 - 024 - MY3 and MOST110 - 2224 - E - 006 - 007, Instrumentation Resource Center in National Yang Ming Chiao Tung University (X-ray Photoelectron and Auger Electron Epectroscopy). The authors gratefully acknowledge the use of [EM000800] JEOL JEM-2100F Cs STEM belonging to the Core Facility Center of National Cheng Kung University.
Funding Information:
This work was supported by the Ministry of Science and Technology, Taiwan , under Grants MOST109 - 2221 - E - 006 - 024 - MY3 and MOST110 - 2224 - E - 006 - 007 , Instrumentation Resource Center in National Yang Ming Chiao Tung University (X-ray Photoelectron and Auger Electron Epectroscopy). The authors gratefully acknowledge the use of [EM000800] JEOL JEM-2100F Cs STEM belonging to the Core Facility Center of National Cheng Kung University.
Publisher Copyright:
© 2022
PY - 2023/2
Y1 - 2023/2
N2 - Many semiconductor materials have been researched for hydrogen evolution application, in which 2D nanosheet materials are given a bunch of investigation due to their suitable energy band edges and proper band gap. The studying of a novel B-site substituted 2D perovskite nanosheets, Can-1Tin-3Nb3O3n+1− (CTNO−), with a layer number n = 4, 5, and 6 shows that these n-type semiconductors have unique properties with large band gaps (3.71 – 3.78 eV). These Dion-Jacobson family members, titaniobate nanosheets, are fabricated by substituting partially transition metal Ti elements into the Nb element positions (B sites) of the niobate (NbO6) perovskite structure. A well crystalline structure and the ability in hydrogen generation are exhibited. The energy band diagrams of CTNO− (n = 4, 5, and 6) nanosheets are determined and established. The photoelectrochemical devices made of B-site substituted CTNO−nanosheets are carried out for investigating of the ability in hydrogen generation reaction. The CTNO− (n = 5) nanosheets performs the water splitting capability with the highest hydrogen generation efficiency. The hydrogen generation efficiency is improved by a p-n composite combining CTNO− (n = 4, 5, and 6) nanosheets with a conductive polymer of PEDOT:PSS. The highest efficiency of hydrogen generation is belonging to CTNO− (n = 4)/PEDOT:PSS with a hydrogen formation rate of 5.576 × 102 µmol h−1 g−1. Concerning all these performances, these Dion Jacobson phase CTNO− (n = 4, 5, and 6) nanosheets are considered for ultrathin scale photoelectrochemical cell or phototransistor applications.
AB - Many semiconductor materials have been researched for hydrogen evolution application, in which 2D nanosheet materials are given a bunch of investigation due to their suitable energy band edges and proper band gap. The studying of a novel B-site substituted 2D perovskite nanosheets, Can-1Tin-3Nb3O3n+1− (CTNO−), with a layer number n = 4, 5, and 6 shows that these n-type semiconductors have unique properties with large band gaps (3.71 – 3.78 eV). These Dion-Jacobson family members, titaniobate nanosheets, are fabricated by substituting partially transition metal Ti elements into the Nb element positions (B sites) of the niobate (NbO6) perovskite structure. A well crystalline structure and the ability in hydrogen generation are exhibited. The energy band diagrams of CTNO− (n = 4, 5, and 6) nanosheets are determined and established. The photoelectrochemical devices made of B-site substituted CTNO−nanosheets are carried out for investigating of the ability in hydrogen generation reaction. The CTNO− (n = 5) nanosheets performs the water splitting capability with the highest hydrogen generation efficiency. The hydrogen generation efficiency is improved by a p-n composite combining CTNO− (n = 4, 5, and 6) nanosheets with a conductive polymer of PEDOT:PSS. The highest efficiency of hydrogen generation is belonging to CTNO− (n = 4)/PEDOT:PSS with a hydrogen formation rate of 5.576 × 102 µmol h−1 g−1. Concerning all these performances, these Dion Jacobson phase CTNO− (n = 4, 5, and 6) nanosheets are considered for ultrathin scale photoelectrochemical cell or phototransistor applications.
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U2 - 10.1016/j.surfin.2022.102623
DO - 10.1016/j.surfin.2022.102623
M3 - Article
AN - SCOPUS:85145839719
SN - 2468-0230
VL - 36
JO - Surfaces and Interfaces
JF - Surfaces and Interfaces
M1 - 102623
ER -