scholarly journals Interface‐Structure‐Modulated CuF 2 /CF x Composites for High‐Performance Lithium Primary Batteries

2021 ◽  
Author(s):  
Lidong Sun ◽  
Cong Peng ◽  
Lingchen Kong ◽  
Yu Li ◽  
Wei Feng
Keyword(s):  
High Performance ◽  
Interface Structure

scholarly journals Tracking structural evolution: operando regenerative CeOx/Bi interface structure for high-performance CO2 electroreduction

2020 ◽  
Author(s):  
Ruichao Pang ◽  
Pengfei Tian ◽  
Hongliang Jiang ◽  
Minghui Zhu ◽  
Xiaozhi Su ◽  
...  
Keyword(s):  
High Performance ◽  
Density Functional ◽  
Structural Evolution ◽  
Density Functional Theory Calculations ◽  
Active Phase ◽  
Interface Structure ◽  
Operating Conditions ◽  
Faradaic Efficiency ◽  
Co2 Electroreduction ◽  
Water Activation

Abstract Unveiling the structural evolution and working mechanism of catalysts under realistic operating conditions is crucial for the design of efficient electrocatalysts for CO2 electroreduction, yet remains highly challenging. Here, by virtue of operando structural measurements at multiscale levels, it is identified under CO2 electroreduction conditions that an as-prepared CeO2/BiOCl precatalyst gradually evolves into CeOx/Bi interface structure with enriched Ce3+ species, which serves as the real catalytically active phase. The derived CeOx/Bi interface structure compared to pure Bi counterpart delivers substantially enhanced performance with a formate Faradaic efficiency approaching 90% for 24 hours in a wide potential window. The formate Faradaic efficiency can be further increased by using isotope D2O instead of H2O. Density functional theory calculations suggest that the regenerative CeOx/Bi interfacial sites can not only promote water activation to increase local *H species for CO2 protonation appropriately, but also stabilize the key intermediate *OCHO in formate pathway.

Research of High Performance Concrete of C100

2013 ◽  
Vol 838-841 ◽  
pp. 170-174
Author(s):  
Guo Jun Wang
Keyword(s):  
Silicon Content ◽  
High Performance ◽  
High Performance Concrete ◽  
Concrete Strength ◽  
Interface Structure ◽  
Orthogonal Test ◽  
Cementitious Material ◽  
Point Of View ◽  
Aggregate Gradation ◽  
Interface Structures

The effect on concrete strength of various kinds factor was systematically studied by orthogonal test. The amount of cementitious material, slag content, silicon content, water cement ratio, aggregate gradation and other factors was consider. By adjusting the parameters of the experiment, the C100 concrete was preparation successfully, which has high stregth and pumping perfomance. The interface structure of the C100 concrete was analyzed by scanning electron microscope (SEM) and found that C100 has a better interface structures. The concrete is a system and his strength depends on the strength of the suitability of various materials, which is a new point of view was put forward.

scholarly journals Electronic structure and thermal conductance of the MASnI3/Bi2Te3 interface: a first-principles study

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Masayuki Morimoto ◽  
Shoya Kawano ◽  
Shotaro Miyamoto ◽  
Koji Miyazaki ◽  
Shuzi Hayase ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Composite Material ◽  
First Principles ◽  
High Performance ◽  
Thermal Conductance ◽  
Electronic States ◽  
Interface Structure ◽  
First Principles Calculations ◽  
Interfacial Thermal Conductance ◽  
Interface Structures

AbstractTo develop high-performance thermoelectric devices that can be created using printing technology, the interface of a composite material composed of MASnI3 and Bi2Te3, which individually show excellent thermoelectric performance, was studied based on first-principles calculations. The structural stability, electronic state, and interfacial thermal conductance of the interface between Bi2Te3 and MASnI3 were evaluated. Among the interface structure models, we found stable interface structures and revealed their specific electronic states. Around the Fermi energy, the interface structures with TeII and Bi terminations exhibited interface levels attributed to the overlapping electron densities for Bi2Te3 and MASnI3 at the interface. Calculation of the interfacial thermal conductance using the diffuse mismatch model suggested that construction of the interface between Bi2Te3 and MASnI3 could reduce the thermal conductivity. The obtained value was similar to the experimental value for the inorganic/organic interface.

Arrayed silk fibroin for high-performance Li metal batteries and atomic interface structure revealed by cryo-TEM

2020 ◽  
Vol 8 (48) ◽  
pp. 26045-26054 ◽  
Author(s):  
Baolin Zhang ◽  
Haodong Shi ◽  
Zhijin Ju ◽  
Kai Huang ◽  
Cheng Lian ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Silk Fibroin ◽  
Layered Structure ◽  
High Performance ◽  
Interface Structure ◽  
Atomic Interface

An upright silk fibroin/lithium foil alternating array is fabricated to facilitate an unexpected SEI with a robust layered structure of lithium deposited on the anode (revealed by cryogenic electron microscopy), thus significantly suppressing dendrites.

Silica nanonetwork confined in nitrogen-doped ordered mesoporous carbon framework for high-performance lithium-ion battery anodes

Nanoscale ◽  
2015 ◽  
Vol 7 (9) ◽  
pp. 3971-3975 ◽  
Author(s):  
Yeru Liang ◽  
Lifeng Cai ◽  
Luyi Chen ◽  
Xidong Lin ◽  
Ruowen Fu ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
High Performance ◽  
Storage Capacity ◽  
Lithium Ion ◽  
Interface Structure ◽  
Ordered Mesoporous Carbon ◽  
Nitrogen Doped ◽  
Carbon Framework ◽  
Ordered Mesoporous ◽  
Ion Storage

A nitrogen-doped ordered mesoporous carbon/silica nanocomposite with a uniform carbon/silica interface structure was fabricated and demonstrated an impressive lithium ion storage capacity.

X-Ray Refraction Characterization of the Interface Structure of Ceramics

2000 ◽  
Author(s):  
Manfred P. Hentschel ◽  
Karl-Wolfram Harbich ◽  
Joerg Schors ◽  
Axel Lange
Keyword(s):  
High Performance ◽  
Ceramic Composites ◽  
Interface Structure ◽  
X Rays ◽  
X Ray ◽  
Surfaces And Interfaces ◽  
X Ray Scattering ◽  
Monolithic Ceramics ◽  
Nondestructive Characterization

Advanced ceramics require specific methods for their nondestructive characterization. X-ray refraction techniques determine the specific surfaces and interfaces of high performance ceramics, composites and other low density materials down to nano-meter dimensions. X-ray refraction occurs due to the interference of phase shifted X-rays in ultra small angle X-ray scattering (USAXS) at objects above 100 nm size. Applications to monolithic ceramics and ceramic composites are presented. The well localized mean pore size of ceramics and the crack growth of ceramic composites are measured non-destructively.

The interface structure of high performance ZnO Schottky diodes

2012 ◽  
Vol 407 (15) ◽  
pp. 2867-2870 ◽  
Author(s):  
Edwin L.H. Mayes ◽  
James G. Partridge ◽  
Matthew R. Field ◽  
Dougal G. McCulloch ◽  
Steven M. Durbin ◽  
...  
Keyword(s):  
High Performance ◽  
Schottky Diodes ◽  
Interface Structure

Interface design for enhancing the wettability of liquid metal to polyacrylate for intrinsically soft electronics

2018 ◽  
Vol 6 (25) ◽  
pp. 6755-6763 ◽  
Author(s):  
Yun-hui Wu ◽  
Shu-ting Xing ◽  
Rong-min Zheng ◽  
Shu-qi Liu ◽  
Zhi-fu Deng ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Interface Design ◽  
High Performance ◽  
Interface Structure ◽  
Adhesive Interface ◽  
Soft Electronics

A novel adhesive interface structure between EGaInSn and PA with high stretchability and stable conductivity for high performance soft electronics.

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

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