02189nas a2200277   4500008004100000022001400041245011600055210006900171260000900240300001100249490000800260520129600268653002201564653001301586653001501599653001501614653002001629653001301649100001901662700001901681700001701700700002501717700002201742700001801764856012901782       2022                        eng d  a1385-894700aProgress and potential of electrospinning-derived substrate-free and binder-free lithium-ion battery electrodes0 aProgress and potential of electrospinningderived substratefree a  cFEB   a1328760 v4303 aCarbon nanofibers derived from electrospun precursors show great promise for electronic applications owing to their flexibility, conductivity, high surface area, and open structure. The integration of metal oxides and sulfides in carbon nanofibers, rather than using them with other binders, eliminates many problems caused by poor adhesion, nanomaterial agglomeration, excess mass contributed by inactive binders, and low conductivity of embedded active materials. The engineering of electrospun fibers with novel morphologies, such as core-shell, hollow, or porous structures, and the use of decorated carbon nanofibers (e.g., by electrodeposition or co precipitation) are discussed in this review. Representative schematic illustrations of the lithium-storage mechanism for these binder-free electrodes are presented. We describe how the electrospinning technique can offer a cost-effective strategy for fabrication of lightweight lithium-ion batteries with high capacity and excellent bendability. This review presents the fascinating morphologies of these specially designed carbon nanofiber electrodes, which enhance the electrochemical performance of metal oxides and sulfides, illustrating their enormous potential for use in wearable electronic devices and hybrid electric vehicles.10aCarbon nanofibers10aCo-axial10acomposites10acore-shell10aelectrospinning10aFlexible1 aJoshi, Bhavana1 aSamuel, Edmund1 aKim, Yong-il1 aYarin, Alexander, L.1 aSwihart, Mark, T.1 aYoon, Sam, S.  uhttps://library.ncl.res.in/content/progress-and-potential-electrospinning-derived-substrate-free-and-binder-free-lithium-ion01954nas a2200169   4500008004100000022001400041245017500055210006900230260000900299300001400308490000700322520127100329100001801600700001901618700001901637856012801656       2024                        eng d  a1528-748300aPoly(N-vinylpyrrolidone)-assisted crystal growth of zeolitic imidazolate framework (ZIF-67) and electrochemical properties of its derivatives for flexible supercapacitors0 aPolyNvinylpyrrolidoneassisted crystal growth of zeolitic imidazo  cAPR   a3179-31940 v243 a<p>
	A simple and explicit wet chemical method enables the room-temperature crystallization of the zeolitic imidazolate framework (ZIF-67) using cotton-cloth (CC) as a substrate; where time-dependent Avrami's kinetic studies demonstrated sluggish nucleation and fast crystal growth resulting in unprecedented morphologies-truncated cubes [synthesized without poly(N-vinylpyrrolidone); PVP], and rhombic dodecahedra (with PVP) with average sizes ranging from 500 nm to 1.41 mu m; wherein amphiphilic PVP plays a crucial function of structure directing agent by modulation of complex formation and deprotonation equilibria. To study the potential of pristine ZIF-67 (ZP0) and PVP-functionalized ZIF-67 (ZP50, ZP100, and ZP200) grown on the CC substrate for application as a flexible electrode in supercapacitors, ZP0, ZP50, ZP100, and ZP200 were annealed to form CZP0, CZP50, and CZP100, respectively. Areal capacitances of 181 and 214 mFcm(-2) were achieved at a current density of 1 mAcm(-2) and a potential window of 1.6 V for CZP0 and CZP100, respectively, and compared to the derivatives without PVP; CZP100 exhibited a superior energy density of 76.3 mu Whcm(-2) and a capacitance retention of 84.3% after 5000 cycles at a current density of 0.5 mAcm(-2).</p>
1 aJain, Manisha1 aJoshi, Bhavana1 aPoddar, Pankaj  uhttps://library.ncl.res.in/content/polyn-vinylpyrrolidone-assisted-crystal-growth-zeolitic-imidazolate-framework-zif-67-and