02204nas a2200301   4500008004100000022001400041245011000055210006900165260007900234300001400313490000800327520115400335653001401489653000901503653002201512653002701534653000801561653002401569100002801593700002601621700002201647700001801669700001901687700001801706700002101724700002701745856013001772       2015                        eng d  a0273-228900aMicrobial selenium nanoparticles (SeNPs) and their application as a sensitive hydrogen peroxide biosensor0 aMicrobial selenium nanoparticles SeNPs and their application as   a999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USAbHUMANA PRESS INCcNOV  a1386-13930 v1773 a<p>The cell-free extract, a crude enzyme (cytosolic and membrane fraction) obtained from an environmental isolate, Bacillus pumilus sp. BAB-3706 worked as excellent in reducing as well as stabilizing agent and facilitated the formation of stable colloidal selenium nanoparticles (SeNPs). Resulting nanoparticles were characterized using UV-vis spectrophotometer, TEM, EDAX, FT-IR and XRD, respectively. A working electrode was modified by coating the surface of indium tin oxide (ITO) with colloidal SeNPs. Successive additions of H2O2 (100 to 600 mu M) in conventional three electrodes system, cyclic voltammeter with potential scan rate 25.0 mV/s, in 0.1 M phosphate buffer solution (PBS) yielded increase in current. A perpetual amperometric response at fixed potential (-1.0 V) and at selected time interval of 100 s showed different magnitude of current at every addition of H2O2. The linear range of detection of H2O2 was from 5 to 600 mM (R (2) = 0.9965), while the calculated limit of detection was found to be 3.00 mu M. The current study suggested that microbial SeNPs can be used for fabrication of low cost, sensitive H2O2 biosensor.</p>10aBiosensor10aEDAX10aHydrogen peroxide10aSelenium nanoparticles10aTEM10aUV-vis spectroscopy1 aPrasad, Kumar, Suranjit1 aVaghasiya, Jayraj, V.1 aSoni, Saurabh, S.1 aPatel, Jitesh1 aPatel, Rinkesh1 aKumari, Madhu1 aJasmani, Falguni1 aSelvaraj, Kaliaperumal  uhttps://library.ncl.res.in/content/microbial-selenium-nanoparticles-senps-and-their-application-sensitive-hydrogen-peroxide-002158nas a2200229   4500008004100000022001400041245012900055210006900184260000800253300001100261490000700272520129700279653003401576653001901610653003701629653003001666653003001696653001601726100002901742700002701771856013001798       2021                        eng d  a2452-262700aMolecularly engineered graphene oxide anchored metal organic assembly: an active site economic bi-functional electrocatalyst0 aMolecularly engineered graphene oxide anchored metal organic ass  cSEP  a1002690 v293 aLow-temperature fuel cells are the most promising sustainable energy technology as they use hydrogen, an environmentally clean fuel. However, the sluggish kinetics of oxygen electrochemistry, a chronic issue, is holding them from commercialization. Herein, we address this issue through a molecular level design of a Graphene oxide anchored Metal Organic Molecular Assembly (G-MOMA) based catalyst. This non-precious metal catalyst consists of Ni and Fe ions ligated by graphene oxide supported terpyridine, a unique molecular assembly design that maximizes the utilization of active metal centers. This G-MOMA catalyst brings down an over potential (240 mV) for oxygen evolution reaction (OER) as close as that of the bench mark catalyst Ru/C with an impressive Tafel slope of 58 mV/dec and a cyclic stability of >30,000 cycles. G-MOMA excels in oxygen reduction reaction (ORR) too with an onset at 0.88 V (vs RHE). The remarkably stable G-MOMA catalyst surprises with an excellent bi-functionality towards both OER and ORR with an overall potential difference of mere 0.77 V, which is 180 mV and 70 mV lesser than the standard Pt/C and Ru/C catalysts, respectively. The G-MOMA catalyst is well in the activity range of the state-of-art bi-functional catalysts and yet cheaper by many folds.10aBi-functional electrocatalyst10agraphene oxide10aMetal organic molecular assembly10aOxygen Evolution Reaction10aoxygen reduction reaction10aterpyridine1 aJhajharia, Suman, Kumari1 aSelvaraj, Kaliaperumal  uhttps://library.ncl.res.in/content/molecularly-engineered-graphene-oxide-anchored-metal-organic-assembly-active-site-economic01822nas a2200157   4500008004100000022001400041245012900055210006900184260000800253300001400261490000700275520120700282100001901489700002701508856012901535       2025                        eng d  a0888-588500aMaterial selection for enhanced performance in anion exchange membrane water electrolyzers: a study of membranes and gaskets0 aMaterial selection for enhanced performance in anion exchange me  cMAR  a7211-72190 v643 a<p>
	Anion exchange membrane water electrolyzer (AEMWE) is an emerging technology for large-scale hydrogen production, where membrane electrode assembly (MEA) plays a critical role in the electrolyzer efficiency. This study investigates the effects of different membranes (Piperion, Aemion, and Sustainion) and gaskets (Viton, poly(tetrafluoroethylene) (PTFE), and Silicon) using a non-platinum group metal (non-PGM) bifunctional electrocatalyst under fixed compression and flow rates. Membrane properties such as ionic resistance and diffusion and gasket properties like thermal suitability and compressibility significantly affect the overall performance of AEMWE. The results indicate that Sustainion and Aemion membranes are best suited for lab-scale and industrial applications, respectively, while Silicon and PTFE gaskets are optimal for corresponding scales. Understanding these effects can help to improve the efficiency and guide material selection. This study provides valuable insights for researchers developing AEMWE technology, enabling advancements from laboratory research to megawatt-level industrial hydrogen production and supporting the transition to clean-energy solutions.</p>
1 aSingh, Kailash1 aSelvaraj, Kaliaperumal  uhttps://library.ncl.res.in/content/material-selection-enhanced-performance-anion-exchange-membrane-water-electrolyzers-study