Template process for engineering the photoluminescence of PVK and PPV‐based nanowires

2019 ◽  
Vol 136 (47) ◽  
pp. 48201 ◽  
Author(s):  
Mohamed Mbarek ◽  
Alexandre Garreau ◽  
Florian Massuyeau ◽  
Kamel Alimi ◽  
Jany Wéry ◽  
...  
Keyword(s):  
Template Process

The Photo-Template Process*-->

1945 ◽  
Vol 44 (3) ◽  
pp. 195-202
Author(s):  
Faurest Davis ◽  
Cyril F. Harris
Keyword(s):  
Template Process

Fabrication and Characterization of LiFePO4 Nanotubes by a Sol-gel-AAO Template Process

2006 ◽  
Vol 19 (6) ◽  
pp. 530-534 ◽  
Author(s):  
Xiao-hong Liu ◽  
Jin-qing Wang ◽  
Jun-yan Zhang ◽  
Sheng-rong Yang
Keyword(s):  
Sol Gel ◽  
Aao Template ◽  
Template Process ◽  
Fabrication And Characterization

STRUCTURE AND ELECTROCHEMISTRY PERFORMANCE INVESTIGATION OF2-4SYNTHESIZED BY MICROWAVE-TEMPLATE PROCESS

2004 ◽  
pp. 603-610
Author(s):  
S. T. YANG ◽  
H. Y. DONG ◽  
N. H. ZHAO ◽  
H. Y. YUE ◽  
J. X. YANG
Keyword(s):  
Template Process

Synthesis and Formation Mechanism of Bi(Se,S) Nanowires via a Solvothermal Template Process

2000 ◽  
Vol 29 (7) ◽  
pp. 790-791 ◽  
Author(s):  
Huilan Su ◽  
Yi Xie ◽  
Peng Gao ◽  
Hong Lu ◽  
Yujie Xiong ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Template Process

Exchange bias effect in hierarchical NiO/NiFe2O4 sub-microcubes fabricated via a self-sacrifice template process

2020 ◽  
Vol 822 ◽  
pp. 153672
Author(s):  
Xianke Zhang ◽  
Li Li ◽  
Yuqiang Zeng ◽  
Jujun Yuan ◽  
Yi Yu ◽  
...  
Keyword(s):  
Exchange Bias ◽  
Bias Effect ◽  
Exchange Bias Effect ◽  
Template Process

scholarly journals Dual Plasmon Resonances and Tunable Electric Field in Structure-Adjustable Au Nanoflowers for Improved SERS and Photocatalysis

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2176
Author(s):  
Yi-Xin Zhao ◽  
Hao-Sen Kang ◽  
Wen-Qin Zhao ◽  
You-Long Chen ◽  
Liang Ma ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Electric Fields ◽  
Plasmon Resonance ◽  
Plasmon Coupling ◽  
Plasmon Excitation ◽  
Dipole Resonance ◽  
Template Process ◽  
Plasmon Resonances ◽  
Strong Electric Fields ◽  
Au Nanosphere

Flower-like metallic nanocrystals have shown great potential in the fields of nanophononics and energy conversion owing to their unique optical properties and particular structures. Herein, colloid Au nanoflowers with different numbers of petals were prepared by a steerable template process. The structure-adjustable Au nanoflowers possessed double plasmon resonances, tunable electric fields, and greatly enhanced SERS and photocatalytic activity. In the extinction spectra, Au nanoflowers had a strong electric dipole resonance located around 530 to 550 nm. Meanwhile, a longitudinal plasmon resonance (730~760 nm) was obtained when the number of petals of Au nanoflowers increased to two or more. Numerical simulations verified that the strong electric fields of Au nanoflowers were located at the interface between the Au nanosphere and Au nanopetals, caused by the strong plasmon coupling. They could be further tuned by adding more Au nanopetals. Meanwhile, much stronger electric fields of Au nanoflowers with two or more petals were identified under longitudinal plasmon excitation. With these characteristics, Au nanoflowers showed excellent SERS and photocatalytic performances, which were highly dependent on the number of petals. Four-petal Au nanoflowers possessed the highest SERS activity on detecting Rhodamine B (excited both at 532 and 785 nm) and the strongest photocatalytic activity toward photodegrading methylene blue under visible light irradiation, caused by the strong multi-interfacial plasmon coupling and longitudinal plasmon resonance.

scholarly journals Sintesis silika tersulfonasi dari waterglass dengan templat PEG sebagai katalis asam padat dalam pembuatan pelumas dari minyak nabati Synthesis of sulfonated silica from waterglass with PEG template as solid acid catalyst in the production of lubricant from vegetable oil

2016 ◽  
Vol 81 (2) ◽  
Author(s):  
Sri WAHYUNI ◽  
Heru SETYAWA
Keyword(s):  
Fourier Transform ◽  
Surface Area ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Base Material ◽  
Acid Catalyst ◽  
Catalyst System ◽  
Solid Catalyst ◽  
Template Process ◽  
Homogeneous Acid

AbstractThe use of a catalyst in the manufacture of lubricantscome through many developments, from a homogeneousbase catalysts, homogeneous acid catalyst to hetero-geneous solid catalyst system (heterogenous catalyst). Oneexample of heterogeneous catalyst base material is silica.The purpose of this research was to study the graftingmethod of sulfonic group on silica from waterglass withPEG (polyethylene glycol) template as solid acid catalystand to analyze the effect of PEG concentration on ioniccapacity. Silica sol was produced by addition of PEG andHCl into waterglass. The PEG template was separated bytwo different methods; solvothermal extraction andcalcinations process. The following step was graftingprocess of the sulfonate into the silica powder, and dryingthe silica sulfonate in certain temperature. The driedsulfonated silica particles were characterized for theirpore size by BET method, the functional group by FTIR(Fourier Transform Infra Red) test, and the ionic capacityby titrimetry analysis. The result showed that the separatedPEG template process with calcinations method gave abetter result than the solvothermal extraction methodbased on the amount of PEG that disappear. While fromBET result showed that the calcinations process producedsmaller surface area pore than the extraction solvothermalprocess. The effect of the concentration of PEG template,showed that the surface area mostly decreased with theaddition of the PEG template concentration and increasedagain at 0.0178 g/mL. The biggest ionic capacity at 12,603mmol eq/g silica was obtained from solvothermal method.AbstrakPenggunaan katalis dalam pembuatan pelumas me-ngalami banyak perkembangan, dari katalis homogenbasa, katalis homogen asam hingga dikembangkanpenggunaan katalis padat sistem heterogen (heterogenouscatalyst). Salah satu contoh bahan dasar dari katalisheterogen ini adalah silika. Penelitian ini bertujuan untukmempelajari teknik pencangkokan gugus sulfonat pada silika dari waterglass dengan templat PEG (polyethyleneglycol) sebagai katalis asam padat dan menganalisapengaruh konsentrasi templat terhadap kapasitas ion. Solsilika dibuat dengan menambahkan PEG dan HCl kedalam waterglass. Templat PEG dihilangkan dengan duacara yang berbeda yaitu ekstraksi solvothermal dankalsinasi. Proses selanjutnya adalah pencangkokansulfonat pada serbuk silica dan silika tersulfonasi padasuhu tertentu. Partikel silika tersulfonasi yang telah keringdikarakterisasi ukuran porinya dengan metode BET,gugus fungsi dengan uji FTIR (Fourier Transform InfraRed), dan kapasitas ionik dengan analisis titrimetri. Hasilpenelitian menunjukkan bahwa metode kalsinasi ternyatadapat menghilangkan senyawa PEG lebih baik di-bandingkan dengan metode ekstraksi solvothermal, tetapiberdasarkan hasil BET, penghilangan templat melaluiproses kalsinasi menghasilkan luas permukaan yang lebihkecil jika dibandingkan dengan kondisi sebelum templatdihilangkan, sedangkan ekstraksi solvothermal meng-hasilkan luas permukaan silika yang lebih besar. Untukpengaruh konsentrasi templat PEG, didapatkan hasilbahwa luas permukaan partikel silika cenderung turundengan penambahan templat dan naik kembali padakonsentrasi 0,0178 g/mL. Kapasitas ionik terbesar di-dapat pada silika dengan metode solvothermal yaitusebesar 12,603 mmol/g silika.

Nickel Oxide Nanotubes: Synthesis and Electrochemical Performance for Use in Lithium Ion Batteries

2006 ◽  
Vol 6 (1) ◽  
pp. 77-81 ◽  
Author(s):  
S. A. Needham ◽  
G. X. Wang ◽  
H. K. Liu ◽  
L. Yang
Keyword(s):  
Electrochemical Performance ◽  
Nickel Oxide ◽  
Lithium Ion ◽  
Electrode System ◽  
Nanocrystalline Powder ◽  
Outer Diameter ◽  
Lithium Storage ◽  
Nanotube Bundles ◽  
Lithium Ion Cells ◽  
Template Process

Uniform and aligned Nickel Oxide (NiO) nanotube bundles have been synthesized by a template process. Individual nanotubes are 60 μm long with a 200 nm outer diameter and wall thickness of 20–30 nm. The synthesis involved forming Ni(OH)2 nanotubes that were subsequently heated to 350°C in order to fully convert the product to NiO nanotubes. NiO nanotube powder was used in lithium-ion cells for assessment of lithium storage ability and electrochemical performance. Discharge capacity of the NiO nanotube electrode was in excess of 30% higher than that of the standard NiO nanocrystalline powder electrode after 20cycles. Impedance data suggests the NiO nanotube electrode provides more controlled and sustainable Li diffusion when compared to the NiO reference powder electrode system.

Gas Sensing Properties of Hollow SnO2 Microspheres Prepared by a Template Process

2011 ◽  
Vol 9 (1) ◽  
pp. 184-187 ◽  
Author(s):  
Ding Wang ◽  
Yong-Chun Fu ◽  
Jia-Qiang Xu ◽  
Qing-Yi Pan
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Template Process ◽  
Gas Sensing Properties
Sign in / Sign up

Export Citation Format

Share Document