Unlike animal nitric-oxide synthases (NOSs), the bacterial NOS enzymes have no attached flavoprotein domain to reduce their heme and so must rely on unknown bacterial proteins for electrons. We tested the ability of two Bacillus subtilis flavodoxins (YkuN and YkuP) to support catalysis by purified B. subtilis NOS (bsNOS). When an NADPH-utilizing bacterial flavodoxin reductase (FLDR) was added t...

group viii b metal oxides supported on gamma-alumina were investigated as catalysts and promoters of moo3 hydrodesulfurization catalysis. superior promotion was observed in pbo promoted catalyst compared to that of coo, the typically accepted promoter. other metal oxides, sno and ho2o3 exhibited reasonable hydrodesulfurization catalysis promotion but lower than for coo promoted catalyst.

mahmoud zarei was born in hamedan, iran in1986. he received his b.sc. in pure chemistry (2010) from islamic azad university arak and m.sc. in organic chemistry (2013) at bu-ali sina university, iran. he is currently working towards his ph.d. under the supervision of professor mohammad ali zolfigol. his research interest is catalysis, including the application of homogeneous and heterogeneous ca...

Photocatalytic systems for the reduction of aqueous protons are strongly pH-dependent, but the origin of this dependency is still not fully understood. We have studied the effect of different degrees of acidity on the electron transfer dynamics and catalysis taking place in a homogeneous photocatalytic system composed of a phosphonated ruthenium tris(bipyridine) dye (RuP) and a nickel bis(dipho...

Photocatalytic systems for the reduction of aqueous protons are strongly pH-dependent, but the origin of this dependency is still not fully understood. We have studied the effect of different degrees of acidity on the electron transfer dynamics and catalysis taking place in a homogeneous photocatalytic system composed of a phosphonated ruthenium tris(bipyridine) dye (RuP) and a nickel bis(dipho...

In recent years, due to the impact of global warming, environmental pollution, and energy crisis, international attention demand for clean are increasing. Hydrogen is recognized as one sources. Water considered largest potential supplier hydrogen energy. However, artificial catalytic water splitting oxygen evolution has not been widely used its high consumption cost during cracking. Therefore, ...

Transition metal carbides/nitrides (MXenes) with eccentric properties are emerging 2D nanomaterials intriguing applications in the photo and electro-catalytic water splitting (Wsp). MXenes have a regular planer structure large specific surface area (SSA), excellent hydrophilicity, metallic conductivity, wide range of functionalities termination groups, making them promising candidate for long-t...

In today’s industries, a diversity of processes give rise to increasing numbers non-biodegradable compounds that need be degraded totally or transformed other less toxic and/or more biodegradable compounds, before their discharge into the environment. One such compound chosen for this study is Orange II, representative azo-dye widely used and easy monitor in its degradation. The photo-Fenton pr...

From a personal view, this perspective analyses the gaps and opportunities for catalysis to address electrification of chemical production from high-tech scenario. It is assumed that significant substitution fossil fuels required meet net-zero emissions targets. This vision significantly impacts future sustainable production. We identified short (up 2030), medium- (2030–2040) long-term (2040–20...