scholarly journals ZnO/Ag/Ag2WO4 photo-electrodes with plasmonic behavior for enhanced photoelectrochemical water oxidation

RSC Advances ◽  
2019 ◽  
Vol 9 (15) ◽  
pp. 8271-8279 ◽  
Author(s):  
Rania E. Adam ◽  
Mahsa Pirhashemi ◽  
Sami Elhag ◽  
Xianjie Liu ◽  
Aziz Habibi-Yangjeh ◽  
...  

Ag-based compounds are excellent co-catalyst that can enhance harvesting visible light and increase photo-generated charge carrier separation owing to its surface plasmon resonance (SPR) effect in photoelectrochemical (PEC) applications.

CrystEngComm ◽  
2022 ◽  
Author(s):  
Huiqin An ◽  
Lifang Cao ◽  
Ran Cheng ◽  
Xiaoqi Zhang ◽  
Saihui Zhang ◽  
...  

The hot electrons produced by surface plasmon resonance (SPR) effect of plasmonic metal offer an efficient and sustainable strategy for traditional catalysis. However, the low generation rate and easy recombination...


Nano Energy ◽  
2021 ◽  
pp. 106189
Author(s):  
Rida Shahzadi Haider ◽  
Shengyang Wang ◽  
Yuying Gao ◽  
Anum Shahid Malik ◽  
Na Ta ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5119 ◽  
Author(s):  
Michal Gryga ◽  
Dalibor Ciprian ◽  
Petr Hlubina

We report on a highly sensitive measurement of the relative humidity (RH) of moist air using both the surface plasmon resonance (SPR) and Bloch surface wave resonance (BSWR). Both resonances are resolved in the Kretschmann configuration when the wavelength interrogation method is utilized. The SPR is revealed for a multilayer plasmonic structure of SF10/Cr/Au, while the BSWR is resolved for a multilayer dielectric structure (MDS) comprising four bilayers of TiO2/SiO2 with a rough termination layer of TiO2. The SPR effect is manifested by a dip in the reflectance of a p-polarized wave, and a shift of the dip with the change in the RH, or equivalently with the change in the refractive index of moist air is revealed, giving a sensitivity in a range of 0.042–0.072 nm/%RH. The BSWR effect is manifested by a dip in the reflectance of the spectral interference of s- and p-polarized waves, which represents an effective approach in resolving the resonance with maximum depth. For the MDS under study, the BSWRs were resolved within two band gaps, and for moist air we obtained sensitivities of 0.021–0.038 nm/%RH and 0.046–0.065 nm/%RH, respectively. We also revealed that the SPR based RH measurement is with the figure of merit (FOM) up to 4.7 × 10−4 %RH−1, while BSWR based measurements have FOMs as high as 3.0 × 10−3 %RH−1 and 1.1 × 10−3 %RH−1, respectively. The obtained spectral interferometry based results demonstrate that the BSWR based sensor employing the available MDS has a similar sensitivity as the SPR based sensor, but outperforms it in the FOM. BSW based sensors employing dielectrics thus represent an effective alternative with a number of advantages, including better mechanical and chemical stability than metal films used in SPR sensing.


RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 12547-12555 ◽  
Author(s):  
Kasimayan Uma ◽  
Shih-Wen Chen ◽  
Nadarajan Arjun ◽  
Guan-Ting Pan ◽  
Thomas C.-K. Yang

We present a systematic investigation of CO oxidation and surface plasmon resonance on SiO2@α-Fe2O3 nanocomposite spheres with different weight percentages of Ag nanoparticles.


2018 ◽  
Vol 8 (4) ◽  
pp. 1094-1103 ◽  
Author(s):  
Bing Liu ◽  
Yan Jiang ◽  
Yin Wang ◽  
Shuxia Shang ◽  
Yuanman Ni ◽  
...  

We synthesized four Au@TiO2 nanostructures, which exhibit dimensionality- and crystallinity-dependent photocatalytic activity towards H2 generation.


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