At the beginning of the 21st century, the hydrogen civilization doctrine was established and developed. Its main principle states that humankind will be able to avoid a global environmental catastrophe only by one way – the conscious movement on ecologically clean vector: “Hydrogen Energy®Hydrogen Economy®Hydrogen Civilization”. The paper analyzes and confirms the correlation between the modern philosophical synergetic universe conception and HyCi-doctrine which, being the superattractor, gives the new meaning to the forthcoming humanity history. This paper highlights two historical stages in the asymptotic movement of mankind towards hydrogen civilization.

The review presents the author’s works on features of experimental testing of oxygen-hydrogen liquid rocket engines (LRE) 11D56, 11D57, RD0120, KVD1, RD0146D and a number of propulsion units and power plants, as well as comparison of their testing with foreign data. Moreover this review shows the role of model studies, autonomous testing of units, systems and engine, including the simulation of flight conditions, and complex tests with experimental testing of advanced engines and propulsion systems (PS) of control boosters. There are ways and devices for the safety of ground tests of rocket engines and power plants with the use of effective diagnostic systems and emergency protection tests.

The paper deals with the research that covers the possibility of using ethanol in concentrations up to 40 vol. % as an anode depolarizer for the cell with solid polymer electrolyte (PEM) and in order to ensure its start at low temperatures. Platinum, iridium and a solid solution of Pt-Ru (1:1 at. %) were used as the anode catalyst, and Pt on Vulcan XC-72 and Pt-Ru were used as the cathode one. It is shown that in all cases by using water-ethanol solutions with concentrations of ethanol up to 40 vol. % the cell voltage generally increased due to the increase of membrane resistance and decrease of rate of the cathodic process of platinum catalyst passivation/poisoning by ethanol and its oxidation products. Some negative impact has a stronger swell of the membrane-electrode unit in a solution of ethanol, which leads to its partial destruction. The energy consumption for the production of hydrogen by electrolysis of alcoholic solutions is lower than by water electrolysis, though the economic feasibility of this process is doubtful. The research demonstrates the electrolysis cell can withstand the freezing at the temperatures in the range of –15 to –20^oC. Moreover, the resistance of the membrane in water-ethanol solutions (about 40 vol. %) is not critical at these temperatures. The feed of water-ethanol solutions in the electrolytic cell allows one to start the electrolysis of water at these temperatures at a voltage of 2,0–2,2 V and currents of 0,07–0,13 A/cm². This ensures the ‘cold start’ and subsequent self-heating of the electrolysis cell and further using deionized water.

The article discusses the features of electrochemical synthesis and behavior of polyaniline and polyaniline based composites doped by electroactive anions (EAA). It has been found that in some cases electroactive anion forms complex with the aniline molecule in electrolyte, which performs as initiator of polymerization. This provides acceleration of the initial stage of aniline electropolymerization. As a result, it becomes possible to prepare high-quality corrosion resistant polyaniline coatings on non-noble metal electrodes. The composites based on polyaniline and nanocarbon materials (carbon nanotubes, graphene oxide) have been prepared, which are promising for use in supercapacitors. Using EAA we developed electrochemical sensors to hydrogen and total content of antioxidants in food.