02016nas a2200205   4500008004100000022001400041245010700055210006900162260000900231300001600240490000700256520126800263100002301531700004001554700001801594700001801612700001801630700003001648856013201678       2023                        eng d  a1144-054600aDonor-acceptor-based two-dimensional polymer as a supercapacitor electrode with long cycling stability0 aDonoracceptorbased twodimensional polymer as a supercapacitor el  cOCT   a18049-180540 v473 a<p>
	The high demand for energy and energy-storage devices urged organic 2D polymers as a potential candidate in this area. One of the major attractions of 2D polymers in electrochemical applications is their long cycling stability due to their rigid and porous structure. Herein, we developed a 2D polymer comprised of donor-acceptor units exhibiting reasonably good performance as a supercapacitor. The 2D polymer displayed a maximum specific capacitance of 218 F g-1 at a current rate of 0.1 A g-1, a higher power density of 4648.35 W kg-1, and an energy density of 7.05 W h kg-1. In a cycling stability test, it demonstrated a capacitance retention of 70% over 10 000 continuous charge-discharge cycles at a current rate of 2.5 A g-1. Such long cycling stability was attributed to the donor-acceptor units and the crystalline nature of the polymer. The sensible selection of the building blocks of the 2D polymers is crucial for the performance and hence provides scope for improvement. An organic donor-acceptor-based 2D polymer, a promising candidate for energy storage devices, displays a specific capacitance of 218 F g-1, a power density of 4648.35 W kg-1, an energy density of 7.05 W h kg-1, and a capacitance retention of 70% over 10 000 cycles.</p>
1 aBhagyasree, T., M.1 aPuthiyaveetil, Priyanka, Pandinhare1 aKumar, Viksit1 aAsokan, Kiran1 aSreekumar, K.1 aBabu, Sukumaran, Santhosh  uhttps://library.ncl.res.in/content/donor-acceptor-based-two-dimensional-polymer-supercapacitor-electrode-long-cycling-stability02212nas a2200277   4500008004100000022001400041245008600055210006900141260000800210300001200218490000700230520131600237653001601553653001401569653002201583653002101605653001101626100001801637700003401655700002001689700002201709700002601731700003001757700003001787856011701817       2025                        eng d  a1613-681000aDiamondoid all-carbon porous aromatic framework host for lithium-sulfur batteries0 aDiamondoid allcarbon porous aromatic framework host for lithiums  cJUN  a25003880 v213 a<p>
	Lithium-sulfur batteries (LSBs) hold incredible potential as next-generation energy storage systems. However, practical applications of LSBs are significantly hindered by several critical challenges. For the first time, scalable all-carbon porous 3D polymers (3DPs) that do not contain heteroatoms or functional groups and do not require post-functionalization are investigated as hosts in lithium-sulfur batteries, demonstrating enhanced cycling stability and overall battery performance. The pyrene-containing 3DP exhibits 75% capacity retention after 600 cycles at 1 C and 52% capacity retention after 1300 cycles at 0.2 C, better than phenyl comprising 3DP. Furthermore, even at higher sulfur loading (4.1 mg cm(-2)) with an electrolyte/sulfur ratio of 5 mu L mg(-1), pyrene 3DP displayed a high capacity of 600 mA h g(-1) and stable performance over 250 cycles with negligible capacity fade. The defined pore structure of 3DPs prevents the migration of polysulfides through physical confinement and the large pi -clouds of 3DPs interact with the negative charge-bearing polysulfides generated in charge-discharge cycles through anion-pi interaction. In this way, The design ensures that the host 3DPs interact with neutral sulfur and anionic polysulfides, resulting in an excellent performance.</p>
10a3D polymers10aBatteries10aLi-Sulfur battery10aporous materials10apyrene1 aKumar, Viksit1 aJavaregowda, Bharathkumar, H.1 aDevasia, George1 aNarayanan, Aswini1 aKrishnamurty, Sailaja1 aKrishnamoorthy, Kothandam1 aBabu, Sukumaran, Santhosh  uhttps://library.ncl.res.in/content/diamondoid-all-carbon-porous-aromatic-framework-host-lithium-sulfur-batteries