02359nas a2200277   4500008004100000022001400041245014700055210006900202260000800271300000800279490000600287520143600293653001501729653001601744653003001760653001401790653001301804653001901817653001801836653002101854100002801875700002101903700001501924700001901939856012301958       2019                        eng d  a2296-264600aElectrocatalysis of oxygen reduction reaction on shape-controlled pt and pd nanoparticles-importance of surface cleanliness and reconstruction0 aElectrocatalysis of oxygen reduction reaction on shapecontrolled  cOCT  a6480 v73 a<p>Shape-controlled precious metal nanoparticles have attracted significant research interest in the recent past due to their fundamental and scientific importance. Because of their crystallographic-orientation-dependent properties, these metal nanoparticles have tremendous implications in electrocatalysis. This review aims to discuss the strategies for synthesis of shape-controlled platinum (Pt) and palladium (Pd) nanoparticles and procedures for the surfactant removal, without compromising their surface structural integrity. In particular, the electrocatalysis of oxygen reduction reaction (ORR) on shape-controlled nanoparticles (Pt and Pd) is discussed and the results are analyzed in the context of that reported with single crystal electrodes. Accepted theories on the stability of precious metal nanoparticle surfaces under electrochemical conditions are revisited. Dissolution, reconstruction, and comprehensive views on the factors that contribute to the loss of electrochemically active surface area (ESA) of nanoparticles leading to an inevitable decrease in ORR activity are presented. The contribution of adsorbed electrolyte anions, in-situ generated adsorbates and contaminants toward the ESA reduction are also discussed. Methods for the revival of activity of surfaces contaminated with adsorbed impurities without perturbing the surface structure and its implications to electrocatalysis are reviewed.</p>
10aAdsorption10aDissolution10aoxygen reduction reaction10aPalladium10aplatinum10areconstruction10ashape-control10asurface cleaning1 aDevivaraprasad, Ruttala1 aNalajala, Naresh1 aBera, Bapi1 aNeergat, Manoj  uhttps://library.ncl.res.in/content/electrocatalysis-oxygen-reduction-reaction-shape-controlled-pt-and-pd-nanoparticles02083nas a2200241   4500008004100000022001400041245012200055210006900177260000800246300001400254490000700268520123300275653002501508653003401533653001501567653002601582653002501608653001401633100003001647700002101677700001901698856012401717       2021                        eng d  a0959-810300aPolyaryletherketone in energy conversion and storage devices - a highly tailorable material with versatile properties0 aPolyaryletherketone in energy conversion and storage devices a h  cAUG  a1026-10370 v703 a<p>Polymers have been a highly useful class of material for the last few decades owing to their ease of bulk production and fabrication. With the myriad of applications in day to day life, they have also found an important role in energy conversion and storage devices, not just as a housing material of the device but with an important role in the energy conversion process. Among the several polymers used in this area, polyaryletherketones (PAEKs) are one of the most versatile materials owing to their easy tailorability. The ether and ketone groups can be introduced in the main polymer chain in several ways to achieve the desired material properties. The main role of a polymer in an energy conversion device is that of a barrier to avoid the mixing of reactants and to selectively transport ions from one electrode to the other to maintain charge neutrality. The polymer membrane finds application in various electrochemical energy conversion devices such as fuel cells, lithium ion batteries, redox flow batteries, supercapacitors etc. The main focus of this work is to briefly review the extent of development in the PAEKs in various energy conversion and storage devices. (c) 2021 Society of Industrial Chemistry.</p>10aelectrolyte membrane10aenergy conversion and storage10afuel cells10alithium ion batteries10aredox flow batteries10aseparator1 aSaleha, Wasim, Feroze Goo1 aNalajala, Naresh1 aNeergat, Manoj  uhttps://library.ncl.res.in/content/polyaryletherketone-energy-conversion-and-storage-devices-highly-tailorable-material