Plasmon-Enhanced Chemical Conversion Using Copper Selenide Nanoparticles

Gan, Xing Yee; Keller, Emily; Warkentin, Christopher L.; Crawford, Scott E.; Frontiera, Renee R.; Millstone, Jill E.

doi:10.1021/acs.nanolett.8b05088

Cited by 55 publications

(53 citation statements)

References 45 publications

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“…And unlike metal nanostructures with relatively inert surface, doped semiconductor NCs with rich coordination surface sites enable feasible and tunable surface modification 14 . Despite these unique properties, however, hot-electron harvesting and conversion from doped semiconductor-based plasmon has been rarely reported, except a few recent studies of plasmon induced charge transfer in semiconductor nano-heterostructures and their applications in photocatalysis [15][16][17] and photodetections 18,19 . Plasmon-driven charge injection from doped semiconductors to molecules remains to be established.…”

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confidence: 99%

Infrared driven hot electron generation and transfer from non-noble metal plasmonic nanocrystals

Zhou

et al. 2020

Nat Commun

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Non-noble metal plasmonic materials, e.g. doped semiconductor nanocrystals, compared to their noble metal counterparts, have shown unique advantages, including broadly tunable plasmon frequency (from visible to infrared) and rich surface chemistry. However, the fate and harvesting of hot electrons from these non-noble metal plasmons have been much less explored. Here we report plasmon driven hot electron generation and transfer from plasmonic metal oxide nanocrystals to surface adsorbed molecules by ultrafast transient absorption spectroscopy. We show unambiguously that under infrared light excitation, hot electron transfers in ultrafast timescale (<50 fs) with an efficiency of 1.4%. The excitation wavelength and fluence dependent study indicates that hot electron transfers right after Landau damping before electron thermalization. We revealed the efficiency-limiting factors and provided improvement strategies. This study paves the way for designing efficient infrared light absorption and photochemical conversion applications based on non-noble metal plasmonic materials.

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confidence: 99%

Infrared driven hot electron generation and transfer from non-noble metal plasmonic nanocrystals

Zhou

et al. 2020

Nat Commun

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“…They are scarce and exorbitant, making them unavailable for large‐scale application. Recently, nonprecious metal‐based nanostructures, such as Si nanoparticles, [ 204 ] Cu 2− x Se nanoparticles, [ 205 ] MnO 2 nanospheres, [ 206 ] Te nanoparticles, [ 207 ] and Ti 3 O 5 microspheres, [ 208 ] have emerged as alternatives with strong plasmonic activity. Coupling these nonprecious optical antennas with catalysts to leverage plasmon‐promoted electrocatalytic HER/OER represents an intriguing subject of future research.…”

Section: Light‐assisted Electrocatalytic Her/oermentioning

confidence: 99%

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

et al. 2020

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promising alternative to fossil fuels. Water electrolysis by renewable resourcederived electricity represents a facile and green route to produce H 2. [1-13] Generally, the key to implement high-performance water splitting is to develop economically viable, efficient, and robust electrocatalysts to lower the activation potential barriers. Thus far, researchers have devoted extensive enthusiasm to the investigation of electrocatalysts. Currently, most efforts have been taken on the search for new materials, [14-16] regulation of morphology, [17] crystallinity, [18] facet, [19] component, [20-24] defect, [25,26] matter phase, [27,28] or the compositing of various materials with synergy. [29-36] However, the performances of emerging nonnoble electrocatalysts still lag behind those of noble ones. To address this issue, researchers have turned their attention beyond the electrocatalysts themselves. Field-assisted electrocatalysis is the electrocatalytic reaction proceeded in the presence of a field. It represents a promising methodology since it exerts an additional degree of freedom to engineer an electrochemical process. Inspiringly, indisputable improvements in electrocatalytic hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) have been implemented with the assist of various fields, including electric field, magnetic field, strain, and light. For example, the electrocatalytic HER of a MoS 2 nanosheet is markedly boosted by simply exploiting a back gate voltage of 5 V. [37] Its overpotential at −100 mA cm −2 is decreased from 240 to 38 mV. In addition, enhancement of alkaline water electrolysis is achieved by applying a moderate magnetic field (≤450 mT) to an electrocatalytic anode consists of highly magnetic electrocatalysts. [38] Its current density increments are beyond 100%. Furthermore, the HER activity of β-PdH x increases monotonically as the applied strain increases from 0% to 4.5%. [39] Lastly, an approximately threefold increase in current density of Au-MoS 2 for electrocatalytic HER is realized upon the illumination of IR light. [40] These results undoubtedly elucidate that applying a field during electrocataly sis opens up great opportunities toward further improving electrocatalytic activity. Moreover, this approach provides merits of facile, dynamical, continuous, reversible, and universal control. Despite fascinating achievements, these investigations are relatively scattered. The underneath mechanisms and principles Hydrogen fuel is considered as one of the most clean renewable resources, warranting it a primary alternative to fossil fuels for future energy supplies. Electrocatalytic water splitting is an eco-friendly technique for high-purity hydrogen production. However, the sluggish dynamics of its two halfreactions, hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), are tough challenges impeding the practical application of this technology. In these years, external field-assisted HER and OER have attracted extensive research interests. Herein, the effects o...

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“…Plasmon-driven dimerization of 4-nitrobenzenethiol (116) to give 4,4′-dimercaptoazobenzene (117) on Cu 2-x Se surfaces using degenerately doped semiconductor nanoparticles (NPs) was reported by Millstone and co-workers as an example of photoredox chemistry, which can be implemented in other environmental applications such as solar light conversions, gas concentration detectors, etc. 96 The authors estimated a 25 ± 3% yield for this reaction by comparing the final peak amplitude ratio of several FTIR peaks (Scheme 36).…”

Section: Review Synthesis Scheme 34 Synthesis Of Functionalized Dihydrofurans 113 7 Carboxylic Acidsmentioning

confidence: 99%

Photocatalytic Homocoupling Transformations

et al. 2021

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The homocoupling reactions promoted by photocatalysts are not very abundant in the literature but compounds generated from them are very interesting. In this short review the coverage of this item will be classified as follows on the basis of the starting material nature. 1. Introduction 2. Arenes and heteroarenes 3. Alkenes 4. Alkanes 5. Alkynes 6. Aldehydes, ketones, alcohols, amines and imines 7. Carboxylic acids 8. Nitrocompounds 9. Conclusions

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Plasmon-Enhanced Chemical Conversion Using Copper Selenide Nanoparticles

Cited by 55 publications

References 45 publications

Infrared driven hot electron generation and transfer from non-noble metal plasmonic nanocrystals

Infrared driven hot electron generation and transfer from non-noble metal plasmonic nanocrystals

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

Photocatalytic Homocoupling Transformations

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