Ultra-low charge transfer resistance carbons by one-pot hydrothermal method for glucose sensing

In this work, TiO2/CdS nanocomposites with co-exposed {101}/[111]-facets (NH4F-TiO2/CdS), {101}/{010} facets (FMA-TiO2/CdS), and {101}/{010}/[111]-facets (HF-TiO2/CdS and Urea-TiO2/CdS) were successfully synthesized through a one-pot solvothermal method by using [Ti4O9]2− colloidal solution containing CdS crystals as the precursor. The crystal structure, morphology, specific surface area, pore size distribution, separation, and recombination of photogenerated electrons/holes of the TiO2/CdS nanocomposites were characterized. The photocatalytic activity and cycling performance of the TiO2/CdS nanocomposites were also investigated. The results showed that as-prepared FMA-TiO2/CdS with co-exposed {101}/{010} facets exhibited the highest photocatalytic activity in the process of photocatalytic degradation of methyl orange (MO), and its degradation efficiency was 88.4%. The rate constants of FMA-TiO2/CdS was 0.0167 min−1, which was 55.7, 4.0, 3.7, 3.5, 3.3, and 1.9 times of No catalyst, CdS, HF-TiO2/CdS, NH4F-TiO2/CdS, CM-TiO2, Urea-TiO2/CdS, respectively. The highest photocatalytic activity of FMA-TiO2/CdS could be attributed to the synergistic effects of the largest surface energy, co-exposed {101}/{010} facets, the lowest photoluminescence intensity, lower charge-transfer resistance, and a higher charge-transfer efficiency.

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Dye-Sensitized Solar Cells Using Mesocarbon Microbead-Based Counter Electrodes

International Journal of Photoenergy ◽

10.1155/2012/709581 ◽

2012 ◽

Vol 2012 ◽

pp. 1-6 ◽

Cited By ~ 2

Author(s):

Chien-Te Hsieh ◽

Bing-Hao Yang ◽

Wei-Yu Chen

Keyword(s):

Solar Cells ◽

Charge Transfer ◽

Dye Sensitized Solar Cells ◽

Charge Transfer Resistance ◽

Counter Electrodes ◽

Transfer Resistance ◽

Dye Sensitized ◽

Catalytic Sites ◽

Low Charge ◽

Sensitized Solar Cells

The dye-sensitized solar cells (DSCs) equipped with mesocarbon microbead (MCMB)-based counter electrodes were explored to examine their cell performance. Three types of nanosized additives including platinum, carbon nanotubes (CNTs), and carbon black (CB) are well dispersed and coated over microscaled MCMB powders. In the design of the counter electrodes, the MCMB graphite offers an excellent medium that allows charge transfer from the ITO substrate to the dye molecule. The active materials such as Pt, CNT, and nanosize CB act as an active site provider for the redox reaction. Among these counter electrodes, the DSCs fabricated with CB electrode exhibit the highest power conversion efficiency. This improved efficiency can be attributed to the fact that the CB nanoparticles not only offer a large number of catalytic sites but also low charge transfer resistance, facilitating a rapid reaction kinetics. Such design of carbon counter electrode has been confirmed to be a promising candidate for replacing Pt electrodes.

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Three-dimensional Co 3 O 4 Nanowire@NiO Nanosheet Core-shell Construction Arrays as Electrodes for Low Charge Transfer Resistance

Electrochimica Acta ◽

10.1016/j.electacta.2017.04.142 ◽

2017 ◽

Vol 241 ◽

pp. 220-228 ◽

Cited By ~ 13

Author(s):

Dandan Han ◽

Xiaoyan Jing ◽

Jun Wang ◽

Yuansheng Ding ◽

Zhenyu Cheng ◽

...

Keyword(s):

Charge Transfer ◽

Three Dimensional ◽

Charge Transfer Resistance ◽

Core Shell ◽

Transfer Resistance ◽

Low Charge

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Feather-like NiCo2O4 self-assemble from porous nanowires as binder-free electrodes for low charge transfer resistance

Frontiers of Materials Science ◽

10.1007/s11706-020-0528-2 ◽

2020 ◽

Vol 14 (4) ◽

pp. 450-458

Author(s):

Dandan Han ◽

Jinhe Wei ◽

Shanshan Wang ◽

Yifan Pan ◽

Junli Xue ◽

...

Keyword(s):

Charge Transfer ◽

Charge Transfer Resistance ◽

Transfer Resistance ◽

Binder Free ◽

Low Charge

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Copolymer-templated nitrogen-enriched nanocarbons as a low charge-transfer resistance and highly stable alternative to platinum cathodes in dye-sensitized solar cells

Journal of Materials Chemistry A ◽

10.1039/c4ta07012g ◽

2015 ◽

Vol 3 (8) ◽

pp. 4413-4419 ◽

Cited By ~ 29

Author(s):

Myung Jong Ju ◽

In Taek Choi ◽

Mingjiang Zhong ◽

Kimin Lim ◽

Jaejung Ko ◽

...

Keyword(s):

Solar Cells ◽

Charge Transfer ◽

Block Copolymers ◽

High Performance ◽

Dye Sensitized Solar Cells ◽

Charge Transfer Resistance ◽

Transfer Resistance ◽

Dye Sensitized ◽

Low Charge ◽

Sensitized Solar Cells

High performance N-enriched nanocarbon CEs for organic DSSCs were synthesized by pyrolysis of self-assembled block copolymers.

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Keggin-type polyoxometalate/thiospinel octahedron heterostructures for photoelectronic devices

Inorganic Chemistry Frontiers ◽

10.1039/d0qi00371a ◽

2020 ◽

Vol 7 (14) ◽

pp. 2621-2628

Author(s):

Peng He ◽

Xiaohong Li ◽

Ting Wang ◽

Weichao Chen ◽

Hong Zhang ◽

...

Keyword(s):

Charge Transfer ◽

Active Site ◽

Charge Transfer Resistance ◽

Transfer Resistance ◽

Highly Efficient ◽

Keggin Type ◽

Low Charge ◽

Further Development

Keggin-type polyoxometalate CoW12/CoIn2S4 thiospinel heterostructures promote the further development in photoelectronic devices due to highly efficient electrocatalytic triiodide reduction, low charge-transfer resistance, and the high amount of exposed active site.

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