Plasmon-Enhanced Hydrogen Evolution on Specific Facet of Silver Nanocrystals

Kuo, Tsung‐Rong; Lee, Yi‐Cheng; Chou, Hung‐Lung; Swathi, M G; Wei, Chuan‐Yu; Wen, Cheng‐Yen; Chang, Yongjun; Pan, Xi-Yu; Wang, Di Yan

doi:10.1021/acs.chemmater.9b00652

Cited by 42 publications

(23 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plasmonic nanomaterials have been extensively utilized for diagnostic applications because of their unique properties, such as a large surface area, easy surface modification, and distinct surface plasmon resonance [1][2][3][4][5][6][7][8][9][10]. Among various plasmonic nanomaterials, gold-based nanomaterials with tunable size and shape have been extensively applied for biomedical detection based on their optical and structural characteristics [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Gold Nanoisland Film for Bacterial Theranostics

et al. 2021

Self Cite

View full text Add to dashboard Cite

Plasmonic nanomaterials have been intensively explored for applications in biomedical detection and therapy for human sustainability. Herein, plasmonic gold nanoisland (NI) film (AuNIF) was fabricated onto a glass substrate by a facile seed-mediated growth approach. The structure of the tortuous gold NIs of the AuNIF was demonstrated by scanning electron microscopy and energy-dispersive X-ray spectroscopy. Based on the ultraviolet-visible spectrum, the AuNIF revealed plasmonic absorption with maximum intensity at 624 nm. With the change to the surface topography created by the NIs, the capture efficiency of Escherichia coli (E. coli) by the AuNIF was significantly increased compared to that of the glass substrate. The AuNIF was applied as a surface-enhanced Raman scattering (SERS) substrate to enhance the Raman signal of E. coli. Moreover, the plasmonic AuNIF exhibited a superior photothermal effect under irradiation with simulated AM1.5 sunlight. For photothermal therapy, the AuNIF also displayed outstanding efficiency in the photothermal killing of E. coli. Using a combination of SERS detection and photothermal therapy, the AuNIF could be a promising platform for bacterial theranostics.

show abstract

Section: Introductionmentioning

confidence: 99%

Plasmonic Gold Nanoisland Film for Bacterial Theranostics

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…To solve serious pollution issues and create efficient green energy, the hydrogen evolution with metal catalysts 1,2 and a supercapacitor (SC) with high power density is considered to be important to develop. Fiber-type energy storage devices have been widely developed in recent years as the energy source of soft electronics.…”

Section: Introductionmentioning

confidence: 99%

“…To solve serious pollution issues and create efficient green energy, the hydrogen evolution with metal catalysts , and a supercapacitor (SC) with high power density is considered to be important to develop. Fiber-type energy storage devices have been widely developed in recent years as the energy source of soft electronics. − To fit the high-rate charge/discharge requirement, the SC with high power density is considered to be one of the promising energy storage devices for soft electronics. , Other than the energy storage ability, the flexibility and stretchability are indispensable for an efficient fiber-type solid-state SC (FSC).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Surface Area, Graphene Quantum Dots, and Functional Groups for the Simple Acid-Treated Carbon Fiber Electrode of Flexible Fiber-Type Solid-State Supercapacitors without Active Materials

Hsiao

Lin

2020

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Flexible fiber-type solid-state supercapacitors (FSCs) are demanded for energy storage of wearable soft electronics. A flexible carbon fiber (CF) with high electrical conductivity and good energy storage ability can act as the current collector and the active material simultaneously. Improving the energy storage ability of the CF without depositing active materials is highly promising to avoid active materials from peeling off, especially under bending conditions. In this study, the CF is treated with acid mixtures containing different HNO3 to H2SO4 ratios. The roughened surface and the production of graphene quantum dots and functional groups are achieved for the acid-treated CF, especially for the CF treated with the acid mixtures. The largely enhanced specific capacitance (C L) is first obtained for the optimized CF electrode (641.08 mF/cm at 5 mV/s) treated with the acid mixture containing the HNO3 to H2SO4 ratio of 1 to 3. The FSC also shows a maximum energy density of 16.57 μW h/cm at the power density of 62.50 μW/cm, as well as a C L retention of 77% and Coulombic efficiency of 100% in 5000 times of a charge/discharge cycling process. Excellent flexibility is also attained for the FSC with no shape distortion of cyclic voltammetry curves measured under the bending angle of 180° and with 1000 times of repeated bending. This work proposes a simple acid treatment to largely enhance the energy storage ability of pure CF electrodes. The bifunctional substance with current collecting and energy storing abilities is expected to be well developed in the future for applying on numerous efficient flexible energy storage devices.

show abstract

“…They themselves can simultaneously harvest light to excite hot electrons as well as provide active sites for redox reactions. [ 215 ] Therefore, they are compelling candidate materials toward light‐assisted water electrolysis without compromising material cost. In addition, these materials help to circumvent complicated fabrication process of hybrid structures, which is conducive to the implementation of efficient yet simple water‐splitting systems.…”

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

View full text Add to dashboard Cite

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...

show abstract

Plasmon-Enhanced Hydrogen Evolution on Specific Facet of Silver Nanocrystals

Cited by 42 publications

References 48 publications

Plasmonic Gold Nanoisland Film for Bacterial Theranostics

Plasmonic Gold Nanoisland Film for Bacterial Theranostics

Enhanced Surface Area, Graphene Quantum Dots, and Functional Groups for the Simple Acid-Treated Carbon Fiber Electrode of Flexible Fiber-Type Solid-State Supercapacitors without Active Materials

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

Contact Info

Product

Resources

About