Electrolesss Plating Re-nickel-based Alloy At Room Temperature And Hydrogen Generation By Hydrolysis Of Alkaline NaBH₄

Recent studies show that the alloys have demonstrate good Catalytic activity inthe field of organic synthesis, obtain uniform coating form autocatalytic and inducedrare earth Co-deposits. Some Scientific prepared a number of the nickel-based-rareearth alloy from aqueous system of electroless plating. the broad solubility of water topromoted development of the electroless plating technology, but also it has broughtmany problems： higher temperature, Stringent requirements for basic, Low reuse andSerious pollution.Hydrogen is a kind of environmental-friendly energy. It is possible to formrecyclable energy system through the combination of hydrogen and other kind ofclean energy such as the solar energy. This new system is able to solve the energycrisis in the future as well as the pollution resulted from the traditional energy sources.In recent years, sodium borohydride has stood out to be an ideal hydrogen sourcebecause it is stable under ordinary conditions and generates hydrogen in a safe andcontrollable way. However, there are still some shortages in the reported research.Precious metals-based catalysts are used and the catalysts’ life is short due to the lossof the active components.In this thesis, it is reviewed that the research work on the catalysts used forhydrogen generation from hydrolysis reaction of NaBH4solution. RE-Nickel-basicalloy was prepared by electroless plating from non-aqueous solution at roomtemperature, and the activity was studied in hydrogen generation by hydrolysis ofalkaline NaBH4.In the first part, a new basic solution for electroless Ni-B alloy plating fromnon-aqueous was studied. The effects of composition and operating conditions on therate of deposition of Ni-B alloy have also been discussed. The optimum compositionand operating conditions for abstaining satisfied Ni-B alloy coating are provided. Atthe same time, the effect of Gd on alloy composition, structure, morphology andmagnetic were studied.In the second part, Employing the PdCl2as activator, the magnetic surface activation in non-aqua electroless plating at room temperature. The study on theLa-Ni-B/Fe3O4catalytic efficiency of catalyst is performed in hydrogen generation byhydrolysis of alkaline NaBH4. Furthermore, characteristics of these catalysts arecarried out in SEM, EDS, TEM, XPS. The results show that these catalysts withefficient performance and magnetic can separate quickly from solution is an ideal andpractical.In the third part, Ce-modified Ni-B NTAs catalyst are synthesized by electrolessplating at room temperature. The study on the catalytic efficiency of amorphousCe-Ni-B NTAs catalyst is performed in hydrogen generation by hydrolysis of alkalineNaBH4. The Ce-Ni-B NTAs show the highest hydrogen generation rate as comparedto Ni-B film and Ni-B NTAs catalyst. The high catalytic activity of the catalystindicates that it is a promising and practical catalyst. In the cycle test, from the1stcycle to the5th cycle，the average hydrogen generation rate Almost no change.