The efficiency of two wet chemical processes based on hydroiodic acid (HI) and sodium borohydride (NaBH4) used to reduce graphene oxide (GO) have been studied. At this aim, the oxygen abundance reduced (rGO) was studied as a function reductant concentration. A number rGO samples were produced their compositions using X-ray photoelectron spectroscopy. analyses show that reduction concentration p...

New access to the 7, 17-seco norditerpenoid alkaloids 9 (60%) from yunnaconitine (5), as well as 14 (46%) and 15 (22%) from isotalatizidine (10), via selective hydrolysis, chlorination and reduction with NaBH4 is described.

We probed the initial growth kinetics of luminescent quantum clusters of silver (AgQCs) within two albumin family proteins, bovine serum albumin (BSA) and ovalbumin (Ova). Shorter time scale (seconds to minutes) growth of AgQCs monitored using real time photoluminescence spectroscopy has shown that, at lower concentrations of Ag, only unstable QCs were formed. The major role of basic pH in the ...

This work presents a controlled reduction method for the selective synthesis of different sized gold nanoclusters protected by thiolate (SR = SC2H4Ph). Starting with Au(III) salt, all the syntheses of Aun(SR)m nanoclusters with (n, m) = (20, 16), (24, 20), (39, 29), and (40, 30) necessitate experimental conditions of slow stirring and slow reduction of Au(I) intermediate species. By controlling...

Aqueous sodium borohydride (NaBH4) is well known for its reducing property and well-established for the development of metal nanoparticles through reduction method. In contrary, this research paper discloses the importance of aqueous NaBH4 as a precipitating agent towards development of porous zirconium oxide. The boron species present in aqueous NaBH4 play an active role during gelation as wel...

A system level microreactor concept for hydrogen generation with Sodium Borohydride (NaBH4) is demonstrated. The uniqueness of the system is the transport and distribution feature of fuel (hydrogen) to the anode of the fuel cell without any external feed connectors and flow fields. The approach here is to use palladium film instead of feed connectors and the flow fields; palladium’s property to...

This paper describes a direct method for arsenic determination and speciation in wine samples by hydride atomic emission spectrometry with inductively coupled plasma (ICP-AES). Optimization of the method included investigation of several parameters that impact the intensity of spectral lines: concentration of reaction media (hydrochloric acid), reduction reagent concentration (sodium borhydride...

The relative and absolute configurations of naphthomycin A were elucidated by an X-ray structural analysis of a methylation product, 25-O-methylnaphthomycin A iminomethyl ether. The absolute configuration was confirmed by degradation (O3, NaBH4) to (S)-butane-1,2,4-triol.

Son günlerde yaşanan COVID-19 salgını, temiz ve yenilenebilir enerji kaynaklarının kullanımının ne derece önemli olduğunu birkez daha göstermiştir. Bu çalışmada, geleceğin kaynağı olarak düşünülen hidrojen, Ni-B katalizörleri kullanılarak NaBH4’ün hidrolizi ile üretilmiştir. Hidroliz reaksiyonu esnasında reaksiyon kinetiğine doğrudan etkisinin olduğu bilinen ortam sıcaklığı, karıştırma hızı, ka...