New Insight into the Role of Gold Nanoparticles in Au@CdS Core–Shell Nanostructures for Hydrogen Evolution

Ma, Xiang; Zhao, Kun; Tang, Hongjie; Chen, Ying; Lu, Chenguang; Liu, Wei; Gao, Yan; Zhao, Huijun; Tang, Zhiyong

doi:10.1002/smll.201401494

Cited by 140 publications

(103 citation statements)

References 36 publications

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“…[126] Additionally, different semiconductors (e.g., CdS, WO 3 , and Fe 2 O 3 ) have been widely used for hot electron-mediated water splitting by coupling to the plasmonic metallic nanostructures, which effectively increases the photochemical reaction probability. [127][128][129] To utilize hot electrons for chemical reactions, past studies have mainly focused on employing the Schottky barrier to separate hot electrons from the electron-hole pairs. The efficiency of hot electron injection through the Schottky barrier is sometimes too low due to the momentum mismatch of hot electrons crossing the Schottky junctions.…”

Section: Water Splittingmentioning

confidence: 99%

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Kim

Lin

Son

et al. 2017

Advanced Optical Materials

153

114

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Hot electron chemistry has drawn tremendous attention from applications related to materials, energy, sensing, and catalysis. The plasmon‐induced generation of hot electrons and their transfer behavior are very important for understanding plasmonic‐enhanced applications and for achieving practically useful efficiency. From a plasmonic perspective, well‐designed plasmonic structures that can manipulate surface plasmons are able to enhance the efficiencies of hot electron‐based processes. This progress report summarizes the recent experimental and theoretical advances on the hot electron effect, emphasizing the crucial role of surface plasmons that are highly designable by using metal nanostructures. In particular, recent breakthroughs in the emerging fields of heterogeneous catalysis based on the hot electron effect are highlighted. Important design principles, mechanisms, and concepts, as well as challenges and perspectives, are illustrated and discussed.

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Section: Water Splittingmentioning

confidence: 99%

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Kim

Lin

Son

et al. 2017

Advanced Optical Materials

153

114

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“…With 1 wt% loading of Au, the sample exhibited the highest photocatalytic performance, while the excess Au led to the descent in the performance because the Au could also be the recombination centers for photoinduced charges. Ma and coworkers synthesized monodispersed Au-CdS core-shell composite with Au core and CdS shell [25]. They demonstrated that Au cores play as the hole receptor, resulting in the improvement of the photocatalytic performance and the stability of photocatalyst.…”

Section: Introductionmentioning

confidence: 96%

“…So in the past 10 years, various works on Au-CdS hybrids have been carried out [20][21][22][23][24][25]. For example, Han and co-agents prepared uniform spherical CdS with high crystallinity [8].…”

Section: Introductionmentioning

confidence: 98%

Au nanoparticle-decorated ultrathin CdS nanowires for high-efficiency photodegradation of organic dyes

et al. 2015

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CdS nanowires (NWs) are obtained by the sulfurization of Cd(OH) 2 nanowires at room temperature using H 2 S. The CdS NWs with diameter of 2-5 nm exhibit high photocatalytic performance due to the ultrafine size. To further improve the performance, Au nanoparticles (NPs) with different sizes, i.e., 5, 20, 40 and 100 nm, that decorated the CdS NWs are synthesized through a simple self-assembly and solid sulfuration process. The synthesized Au NPs-CdS NWs hybrids show higher photocatalytic efficiency than that of pure CdS NWs. Furthermore, 20 nm Au NPs-CdS NWs hybrids with an optimal Au loading of 3.2 wt% exhibit the highest photocatalytic efficiency. Both the enhanced separation of photoinduced hole-electron pairs and the absorption of visible light by incorporating Au NPs significantly improve the photocatalytic performance.

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“…The utilization of localized surface plasmon resonance (LSPR) offers a great opportunity for tackling the limiting factors of photocatalysts for efficient performance under visible light irradiation. Besides the use of plasmonic photocatalysts for solar fuel production in the form of H 2 via photo(electro)chemical water splitting [8,[18][19][20][21][22][23][24][25][26][27][28][29][30], they have also been used for H 2 production from organic compounds [31][32][33][34][35][36][37][38][39][40][41][42] and CO 2 reduction [43][44][45][46][47][48][49]. Furthermore, their applications in water purification [50][51][52][53][54][55][56][57][58][59][60][61][62][63][...…”

Section: Introductionmentioning

confidence: 99%

Surface Plasmon-Assisted Solar Energy Conversion

Dodekatos

Schünemann

Tüysüz

2015

Topics in Current Chemistry

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The utilization of localized surface plasmon resonance (LSPR) from plasmonic noble metals in combination with semiconductors promises great improvements for visible light-driven photocatalysis, in particular for energy conversion. This review summarizes the basic principles of plasmonic photocatalysis, giving a comprehensive overview about the proposed mechanisms for enhancing the performance of photocatalytically active semiconductors with plasmonic devices and their applications for surface plasmon-assisted solar energy conversion. The main focus is on gold and, to a lesser extent, silver nanoparticles in combination with titania as semiconductor and their usage as active plasmonic photocatalysts. Recent advances in water splitting, hydrogen generation with sacrificial organic compounds, and CO2 reduction to hydrocarbons for solar fuel production are highlighted. Finally, further improvements for plasmonic photocatalysts, regarding performance, stability, and economic feasibility, are discussed for surface plasmon-assisted solar energy conversion.

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New Insight into the Role of Gold Nanoparticles in Au@CdS Core–Shell Nanostructures for Hydrogen Evolution

Cited by 140 publications

References 36 publications

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Hot‐Electron‐Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

Au nanoparticle-decorated ultrathin CdS nanowires for high-efficiency photodegradation of organic dyes

Surface Plasmon-Assisted Solar Energy Conversion

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