02376nas a2200265   4500008004100000022001400041245009800055210006900153260000800222300001400230490000600244520150400250653001501754653002001769653001601789653001301805653003001818100002801848700002301876700000501899700002601904700002501930700002601955856012901981       2018                        eng d  a2168-048500aCalixarene intercalated NiCo layered double hydroxide for enhanced oxygen evolution catalysis0 aCalixarene intercalated NiCo layered double hydroxide for enhanc  cAUG  a9649-96600 v63 a<p>Water splitting provides a promising, sustainable way to resolve problems arising due to depleting fossil fuels. The success needs development of low-cost and high-performance electrode materials. The oxygen evolution reaction (OER) is a crucial reaction in water splitting. The combined Ni and Co oxide developed nanostructures having a small overpotential and fast kinetics of OER. They have drawn considerable attention, because of their theoretically high efficiency, high abundance, low cost, and environmental benignity in comparison with precious metal oxides, such as RuO2 and IrO2. However, the desired efficiency needs the developments of enhanced specific active area and conductivity. In the present communication, we address these issues. Specifically, exfoliation of layer double hydroxide (LDH) is applied to enhance the active surface area. The study reveals that intercalation by calixarene in NiCo LDH affords a multifunctional interlayer to deliver a large active surface area and fast electron transport toward the carbon nano-onion (CNO) support. It favorably lowers the overpotentials in OER (290 mV) and attains Tafel slope of 31 mV/decade. Enhanced conductivity is achieved using CNO as a support for the calixarene intercalated NiCo LDH. These developments offer a synergistic effect in achieving superior electrocatalytic activity for OER. This work gives insight into designing binder-free electrodes in alkaline media with good stability for advanced OER activity.</p>10aCalixarene10aelectrocatalyst10aExfoliation10aNiCo LDH10aOxygen Evolution Reaction1 aWaghmode, Babasaheb, J.1 aGaikwad, Aarti, P.1 a1 aSathaye, Shivaram, D.1 aPatil, Kashinath, R.1 aMalkhede, Dipalee, D.  uhttps://library.ncl.res.in/content/calixarene-intercalated-nico-layered-double-hydroxide-enhanced-oxygen-evolution-catalysis02464nas a2200325   4500008004100000245014900041210006900190260000800259300001500267490000700282520139000289653001501679653001501694653001801709653001101727653001601738653001901754100001601773700002601789700001901815700002701834700001501861700001801876700001601894700001901910700002001929700002801949700002501977856013602002       2025                        eng d00aDopant and exfoliation induced simultaneous modification of charge density and C―C coupling sites for efficient CO2 photoreduction to ethylene0 aDopant and exfoliation induced simultaneous modification of char  cJUL  ae2024234710 v643 a<p>
	The photochemical conversion of CO2 into C2+ products has emerged as an attractive method for synthesizing valuable chemicals and fuels using abundant solar energy. However, the challenge lies in enhancing the efficiency and selectivity of C2+ product formation. In this study, we employed a heteroatom doping strategy to optimize the photocatalytic parameters and achieve excellent efficiency and selectivity in the photocatalytic CO2 reduction to C2+ product formation. Our experimental analysis revealed that the local electronic structure of the catalyst, modified by In-doping, enables enhanced efficiency. Additionally, the incorporation of Cu facilitates the coupling of C1 intermediates, resulting in excellent selectivity towards C2+ products. The CO2 reduction performance is further enhanced through exfoliation, which increases the exposure of active sites and extends the charge carrier lifetime by reducing the charge diffusion length. We report that the rate of formation of C2H4 reached 54.3 mu molh(-1)g(-1) with an outstanding selectivity of 91% over the exfoliated CuIn-doped AgBiP2S6 catalyst. By elucidating the role of heteroatom doping and exfoliation in enhancing both the efficiency and selectivity of C2+ product formation, our study contributes to advancing the development of sustainable and efficient photocatalytic CO2 conversion technologies.</p>
10aC & horbar10aC coupling10aCO2 reduction10aDoping10aExfoliation10aPhotocatalysis1 aDas, Kousik1 aChakraborty, Subhajit1 aKediya, Siddhi1 aSingh, Ashutosh, Kumar1 aDas, Risov1 aMondal, Soumi1 aRiyaz, Mohd1 aGoud, Devender1 aDutta, Nilutpal1 aVinod, Chathakudath, P.1 aPeter, Sebastian, C.  uhttps://library.ncl.res.in/content/dopant-and-exfoliation-induced-simultaneous-modification-charge-density-and-c%E2%80%95c-coupling