scholarly journals Electro-Precipitation of Actinides on Boron-Doped Diamond Thin Films for Solid Sources Preparation for High-Resolution Alpha-Particle Spectrometry

2019 ◽  
Vol 9 (7) ◽  
pp. 1473 ◽  
Author(s):  
Quang-Thuan Tran ◽  
Sylvie Pierre ◽  
Jacques de Sanoit ◽  
Michal Pomorski ◽  
Philippe Bergonzo
Keyword(s):  
Stainless Steel ◽  
High Resolution ◽  
Alpha Particle ◽  
High Performance ◽  
High Resolution Spectroscopy ◽  
Precipitation Process ◽  
Boron Doped Diamond ◽  
Experimental Conditions ◽  
Boron Doped ◽  
Novel Approach

In this work, we investigate a novel approach to prepare high-performance alpha-particle solid sources fabricated on diamond thin support layers, offering the properties of diamond such as a low-Z material with corrosion and mechanical hardness. As-prepared solid sources onto boron-doped-diamond (BDD) substrate exhibited high performance of the autoradiography and spectroscopic resolution at the level of other more conventional materials such as stainless steel. A straightforward precipitation process in the Na2SO4 or NaNO3 simple electrolytes under mild experimental conditions with a low current of several mA.cm−2 were successfully developed onto BDD substrates for deposition of single 241Am as well as 239Pu, 241Am, and 244Cm mixed radionuclides. The results demonstrate that solid sources deposited onto such BDD substrates can match the performance of those prepared onto stainless steel substrates with excellent uniformity and high-resolution spectroscopy, together combining the robustness, chemical resilience, and X-ray transparence of the diamond. Alpha-particle spectra exhibiting a low full width at half maximum (FWHM) of 12.5 keV at the energy of 5.485 MeV (241Am) could be practically obtained for BDD substrates.

High-performance non-enzymatic glucose sensor based on Ni/Cu/boron-doped diamond electrode

2019 ◽  
Vol 841 ◽  
pp. 135-141 ◽  
Author(s):  
Zhenzhi Gong ◽  
Naixiu Hu ◽  
Wentao Ye ◽  
Kuangzhi Zheng ◽  
Can Li ◽  
...  
Keyword(s):  
High Performance ◽  
Glucose Sensor ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode

Construction and High Performance of a Novel Modified Boron-Doped Diamond Film Electrode Endowed with Superior Electrocatalysis

2010 ◽  
Vol 114 (13) ◽  
pp. 5906-5913 ◽  
Author(s):  
Guohua Zhao ◽  
Peiqiang Li ◽  
Fuqiao Nong ◽  
Mingfang Li ◽  
Junxia Gao ◽  
...  
Keyword(s):  
Diamond Film ◽  
High Performance ◽  
Film Electrode ◽  
Boron Doped Diamond ◽  
Boron Doped

scholarly journals Electrocatalytic properties of hydroxyapatite thin films electrodeposited on stainless steel substrates

2017 ◽  
Vol 6 (6) ◽  
pp. 255-266 ◽  
Author(s):  
Ahmed Chennah ◽  
Yassine Naciri ◽  
Hassan Ait Ahsaine ◽  
Aziz Taoufyq ◽  
Bahcine Bakiz ◽  
...  
Keyword(s):  
Thin Films ◽  
Stainless Steel ◽  
High Performance ◽  
Degradation Kinetics ◽  
Electrolytic Solution ◽  
Experimental Conditions ◽  
Energy Dispersion Spectroscopy ◽  
X Ray ◽  
Electrocatalytic Properties ◽  
Ss Substrates

In this work, we have investigated the structural, microstructural, and electrocatalytic properties of hydroxyapatite (HAp) thin films. The HAp films were electrodeposited on stainless-steel (SS) substrates by chronopotentiometry mode from an electrolytic solution. The HAp films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray energy dispersion spectroscopy (EDS). The electrodeposition and electrochemical processes of the hydroxyapatite (HAp) phase were studied by cyclic voltammetry. This HAp/SS system acting as an anode was used for the first time to electrodegrade Rhodamine B (RhB) in aqueous solutions. To follow the degradation kinetics, we used UV-visible spectroscopy. Several parameters such as the current density and the initial concentration of electrolytic solution were determined to optimize the electrodegradation of RhB. The decrease of RhB concentration followed pseudo-first order kinetics law. The rate of RhB degradation in presence of HAp/SS electrode can reach interesting high performance, depending on the electrocatalysis experimental conditions.

scholarly journals Catalytic Electrochemical Water Splitting Using Boron Doped Diamond (BDD) Electrodes as a Promising Energy Resource and Storage Solution

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5265
Author(s):  
Yousef Al-Abdallat ◽  
Inshad Jumah ◽  
Rami Jumah ◽  
Hanadi Ghanem ◽  
Ahmad Telfah
Keyword(s):  
Water Splitting ◽  
Energy Resource ◽  
Electrical Current ◽  
Dissipated Energy ◽  
Boron Doped Diamond ◽  
Zno Nps ◽  
Experimental Conditions ◽  
Cuo Nps ◽  
Boron Doped ◽  
Electrochemical Water Splitting

The present study developed a new system of electrochemical water splitting using a boron doped diamond (BDD) electrode in the electrochemical reactor. The new method assessed the electrical current, acidity (pH), electrical conductivity, absorbance, dissipation, and splitting energies in addition to the water splitting efficiency of the overall process. Employing CuO NPs and ZnO NPs as catalysts induced a significant impact in reducing the dissipated energy and in increasing the efficiency of splitting water. Specifically, CuO NPs showed a significant enhancement in reducing the dissipated energy and in keeping the electrical current of the reaction stable. Meanwhile, the system catalyzed with ZnO NPs induced a similar impact as that for CuO NPs at a lower rate only. The energy dissipation rates in the system were found to be 48% and 65% by using CuO and ZnO NPs, respectively. However, the dissipation rate for the normalized system without catalysis (water buffer at pH = 6.5) is known to be 100%. The energy efficiency of the system was found to be 25% without catalysis, while it was found to be 82% for the system catalyzed with ZnO NPs compared to that for CuO NPs (normalized to 100%). The energy dissipated in the case of the non-catalyzed system was found to be the highest. Overall, water splitting catalyzed with CuO NPs exhibits the best performance under the applied experimental conditions by using the BDD/Niobium (Nb) electrodes.

scholarly journals A novel approach in the free-electron laser diagnosis based on a pixelated phosphor detector

2016 ◽  
Vol 23 (1) ◽  
pp. 29-34 ◽  
Author(s):  
Alessia Matruglio ◽  
Simone Dal Zilio ◽  
Rudi Sergo ◽  
Riccardo Mincigrucci ◽  
Cristian Svetina ◽  
...  
Keyword(s):  
High Resolution ◽  
Silicon Substrate ◽  
Free Electron ◽  
Free Electron Laser ◽  
High Performance ◽  
Spot Size ◽  
The Novel ◽  
Etching Technique ◽  
Novel Approach ◽  
Focused Beam

A new high-performance method for the free-electron laser (FEL) focused beam diagnosis has been successfully tested at the FERMI FEL in Trieste, Italy. The novel pixelated phosphor detector (PPD) consists of micrometric pixels produced by classical UV lithography and dry etching technique, fabricated on a silicon substrate, arranged in a hexagonal geometry and filled with suitable phosphors. It has been demonstrated that the overall resolution of the system has increased by reducing the diffusion of the light in the phosphors. Various types of PPD have been produced and tested, demonstrating a high resolution in the beam profile and the ability to measure the actual spot size shot-to-shot with an unprecedented resolution. For these reasons, the proposed detector could become a reference technique in the FEL diagnosis field.

scholarly journals Self-organized multi-layered graphene–boron-doped diamond hybrid nanowalls for high-performance electron emission devices

Nanoscale ◽  
2018 ◽  
Vol 10 (3) ◽  
pp. 1345-1355 ◽  
Author(s):  
Kamatchi Jothiramalingam Sankaran ◽  
Mateusz Ficek ◽  
Srinivasu Kunuku ◽  
Kalpataru Panda ◽  
Chien-Jui Yeh ◽  
...  
Keyword(s):  
Electron Emission ◽  
High Performance ◽  
Field Electron Emission ◽  
Boron Doped Diamond ◽  
Self Organized ◽  
Boron Doped ◽  
Field Electron ◽  
Emission Behavior

Self-organized multilayered graphene–boron doped diamond nanowalls show an enhanced field electron emission behavior.

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