Modulation Growth And Characterization Of Low Dimensional Titanium Oxide/manganese-based Nanoarrays Structure And Electrolysed Water

Energy problem is a serious challenge faced by the current society.Wind power and solar energy system is the renewable energy of well-known,and is often used for power generation systems.However,the output of the wind energy and solar energy systems depends on the climate and geographical conditions,Hydrogen energy is one of the most appropriate enery,the large hydrogen storage can reduce energy waste in the transmission process.Compared to the high cost precious metalsOER catalyst such as Pt,Ru,Ir and their oxides,while TiO₂ nanotube arrays received extensive attention of people because of its non-toxic,low cost,stable chemical performance,rich-abundant.manganese oxide?such as Mn₃O₄ and MnO₂?become the candidate material with its low cost,stable chemical performance and rich valence structure.In this article,we attempt to combine TiO₂ and MnO_x.The main research results in this article as follows:?1?MnO₂ nanoparticles were deposited into TiO₂ nanotube to build MnO₂-NPs TNAs with better visible light response by wet chemical method successfully.we study the the relationship between wet chemical deposition parameters and the electrode material of light absorption,OER performance,Systematically.Then discusses the mechanism of light absorption andOER.Results indicate that when ratio of MnO₂-NPs deposition weight is 26.6%wt,MnO₂-NPs@TNAs have a good visible light response,betterOER performance,the oxygen evolution potential drops to 0.291 V.?2?MnO₂-NWs@TNAs composite materials were synthesized by one-step chemical bath deposition,then obtained MnO_x-NTs@TNAs composite materials by annealed MnO₂-NWs@TNAs.we study the relationship between MnO_x-NTs@TNAs and MnO₂-NWs@TNAs hybrids with light absorption,OER performance and chemical stability,Systematically.Results indicate that MnO_x-NTs@TNAs hybrid have the optimal performance and better stability,the oxygen evolution potential drops to 0.157 V.when the potential is 0.80¹.20 Vvs.Ag/Ag Cl,the current density of MnO_x-NTs@TNAs is about 10 times as many as MnO₂-NWs@TNAs hybrids.?3?Mn-NPs@TNAs nanocomposites electrode of larger photocurrent response were synthesized by electrochemical cathodic reduction.we select the most significant parameters affecting the photocurrent response by the orthogonal experiment method,then on the base of single factor,we study the relationship between deposition voltage and light absorption,photocurrent response.Results indicate that the solution concentration of 7.5 m M,deposition time of 60 s,sedimentary voltage of-3 V is the optimal parameters.