High-performance hydrogen evolution at a MoSe2–Mo2C seamless heterojunction enabled by efficient charge transfer

2020 ◽  
Vol 8 (14) ◽  
pp. 6692-6698 ◽  
Author(s):  
Jing Li ◽  
Wenting Hong ◽  
Chuanyong Jian ◽  
Qian Cai ◽  
Xu He ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Dft Calculations ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Large Surface Area ◽  
Efficient Charge ◽  
Enhanced Conductivity

The heterojunction of Mo2C/MoSe2 with enhanced conductivity and large surface area is contributed to an efficient HER process. DFT calculations prove that there are MIGS in the interface between Mo2C and MoSe2, facilitating charge transfer for HER.

Brand new 1D branched CuO nanowire arrays for efficient photoelectrochemical water reduction

2018 ◽  
Vol 47 (41) ◽  
pp. 14566-14572 ◽  
Author(s):  
Shi-Fang Duan ◽  
Zhen-Xing Zhang ◽  
Yuan-Yuan Geng ◽  
Xiao-Qiang Yao ◽  
Miao Kan ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Surface Area ◽  
Nanowire Arrays ◽  
Large Surface Area ◽  
Water Reduction ◽  
Efficient Charge ◽  
Cuo Nanowire

1D branched CuO nanowire arrays, with large surface area and efficient charge transfer, are reported as photocathodes for photoelectrochemical water reduction.

Ultrathin nanosheets of palladium in boosting its cocatalyst role and plasmonic effect towards enhanced photocatalytic hydrogen evolution

RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 56800-56806 ◽  
Author(s):  
Yuzhen Zhu ◽  
Zaixiang Xu ◽  
Wenya Jiang ◽  
Wenjie Yin ◽  
Shuxian Zhong ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
Catalytic Reaction ◽  
Light Absorption ◽  
Interfacial Area ◽  
Large Surface Area ◽  
Plasmonic Effect ◽  
Photocatalytic Hydrogen Evolution ◽  
Ultrathin Nanosheets

Large surface area for catalytic reaction/light absorption and large interfacial area with semiconductor for charge transfer highlight the ultrathin metal nanosheets as ideal cocatalyst and plasmonic agent in photocatalytic hydrogen evolution.

Accelerating ion diffusion with unique three-dimensionally interconnected nanopores for self-membrane high-performance pseudocapacitors

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18311-18317 ◽  
Author(s):  
Yuan Gao ◽  
Yuanjing Lin ◽  
Zehua Peng ◽  
Qingfeng Zhou ◽  
Zhiyong Fan
Keyword(s):  
Aspect Ratio ◽  
Surface Area ◽  
Structural Stability ◽  
High Aspect Ratio ◽  
High Performance ◽  
Three Dimensional ◽  
Rate Capability ◽  
Large Surface Area ◽  
Nanoporous Structure ◽  
Ion Diffusion

Three-dimensional interconnected nanoporous structure (3-D INPOS) possesses high aspect ratio, large surface area, as well as good structural stability. Profiting from its unique interconnected architecture, the 3-D INPOS pseudocapacitor achieves a largely enhanced capacitance and rate capability.

scholarly journals Conjugated Polymer Donor-Molecular Acceptor Nanohybrids for Photocatalytic Hydrogen Evolution

2019 ◽  
Author(s):  
Haofan Yang ◽  
Xiaobo Li ◽  
Reiner Sebastian Sprick ◽  
Andrew I. Cooper
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Conjugated Polymer ◽  
Apparent Quantum Yield ◽  
High Hydrogen ◽  
Photocatalytic Hydrogen Evolution ◽  
Efficient Charge ◽  
Donor Acceptor

A library of 237 organic binary/ternary nanohybrids consisting of conjugated polymers donors and both fullerene and non-fullerene molecular acceptors was prepared and screened for sacrificial photocatalytic hydrogen evolution. These donor-acceptor nanohybrids (DANHs) showed significantly enhanced hydrogen evolution rates compared with the parent donor or acceptor compounds. DANHs of <a></a><a>a polycarbazole</a>-based donor combined with a methanofullerene acceptor (PCDTBT/PC<sub>60</sub>BM) showed a high hydrogen evolution rate of 105.2 mmol g<sup>-1</sup> h<sup>-1</sup> under visible light (λ > 420 nm). This DANH photocatalyst produced 5.9 times more hydrogen than a sulfone-containing polymer (P10) under the same conditions, which is one of the most efficient organic photocatalysts reported so far. An apparent quantum yield of hydrogen evolution of 3.0 % at 595 nm was measured for this DANH. The photocatalytic activity of the DANHs, which in optimized cases reached 179.0 mmol g<sup>-1</sup> h<sup>-1</sup>, is attributed to efficient charge transfer at the polymer donor/molecular acceptor interface. We also show that ternary donor<sub>A</sub>-donor<sub>B</sub>-acceptor nanohybrids can give higher activities than binary donor-acceptor hybrids in some cases.

scholarly journals Conjugated Polymer Donor-Molecular Acceptor Nanohybrids for Photocatalytic Hydrogen Evolution

2019 ◽  
Author(s):  
Haofan Yang ◽  
Xiaobo Li ◽  
Reiner Sebastian Sprick ◽  
Andrew I. Cooper
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Conjugated Polymer ◽  
Apparent Quantum Yield ◽  
High Hydrogen ◽  
Photocatalytic Hydrogen Evolution ◽  
Efficient Charge ◽  
Donor Acceptor

A library of 237 organic binary/ternary nanohybrids consisting of conjugated polymers donors and both fullerene and non-fullerene molecular acceptors was prepared and screened for sacrificial photocatalytic hydrogen evolution. These donor-acceptor nanohybrids (DANHs) showed significantly enhanced hydrogen evolution rates compared with the parent donor or acceptor compounds. DANHs of <a></a><a>a polycarbazole</a>-based donor combined with a methanofullerene acceptor (PCDTBT/PC<sub>60</sub>BM) showed a high hydrogen evolution rate of 105.2 mmol g<sup>-1</sup> h<sup>-1</sup> under visible light (λ > 420 nm). This DANH photocatalyst produced 5.9 times more hydrogen than a sulfone-containing polymer (P10) under the same conditions, which is one of the most efficient organic photocatalysts reported so far. An apparent quantum yield of hydrogen evolution of 3.0 % at 595 nm was measured for this DANH. The photocatalytic activity of the DANHs, which in optimized cases reached 179.0 mmol g<sup>-1</sup> h<sup>-1</sup>, is attributed to efficient charge transfer at the polymer donor/molecular acceptor interface. We also show that ternary donor<sub>A</sub>-donor<sub>B</sub>-acceptor nanohybrids can give higher activities than binary donor-acceptor hybrids in some cases.

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