Currently, nickel-based superalloys have been widely used in key components of aero-engines and gas turbines due to their superb high-temperature performance above 650 ℃ [2], [3], [4], but large density greatly limits their space for further improvement. Additionally, intermetallic-based ...
Royal Dutch Shell remains unequivocally bullish on prospects for liquefied natural gas despite the current market glut, pointing to several options for new supply projects after its planned $US70 billion ($97 billion) takeover of BG Group and plenty of new markets opening up around the world. ...
There’s an old con game that has been played on the suckers for hundreds and hundreds of years. It is done in various forms, with various objects, under various names—three card monty, the shell game, Thimblerig, bottle caps, cups and ball, the game is the same in every one. The ...
www.nature.com/scientificreports OPEN Fabrication of hierarchical core/ shell MgCo2O4@MnO2 nanowall arrays on Ni-foam as high– Received: 27 May 2019 Accepted: 15 August 2019 Published: xx xx xxxx rate electrodes for asymmetric supercapacitors Jiasheng Xu1,2 & Lin Wang2 Design and ...
Nitrogen gas should be progressively introduced before and after the reaction to discharge air and hydrogen azide. Results and discussion 3 Characterization of Cu 2O nanocrystals 3.1 By comparing the standard spectrum (JCPDS card 34–1354), it can be noted that the product's diffraction peak...
storage, gas sensors, photocatalysis, and so forth. Background In recent decades, the synthesis and properties of nanostructures have been greatly motivated both by a large number of potential applications and by fundamental questions about the physics of nanoscale magnetism. Comparing with other ...
Its XRD patterns correspond well to LaxSr1−xFeO3 (ICDD card #35-1480) with an average crystal size of 25 nm. The crystallization of LSF from the dissolved complex-metal ion precursors in iron oxide pores was studied separately from the behavior of core material. In addition, the iron ...
where R is the gas constant (8.314 J/mol−1K−1), qe is the adsorption capacity (mg/g), Ce is the equilibrium concentration (mg/L) and T is the actual temperature (K). The y-intercept and the slope of the linear fit following a plot of ln KL versus 1/T were employed to ca...
An example of shell waste is the cardid bivalve Acanthocardia tuberculata shell (ATS). This type of cardid bivalve is found in southern Spain and on the Atlantic coast of Morocco for the Spanish canning industry [6]. One of the main problems arising in this type of industry, therefore, ...
The formation of nanostructured states of iron oxides along with standard long-known applications such as catalysts [1], pigments [2], coatings [3], and gas sensors [4] opens up the possibility of their use in the fields of magnetic information storage, medicine, wastewater treatment and ...