NOVELTY - The electrochemical cell (10) has anode (11) having layered electrocatalyst (12) comprising carbon support such as carbon tube integrated with a conductive metal, and active metal layer having thickness in the range of 10 nm-10 microns, deposited on the carbon support. The active metal layer is active to a target species such as ammonia, ethanol or combinations. A cathode (13) has a conductor conducting electric current to anode, basic electrolyte (36) and a group consisting of ammonia (20), ethanol (22) or combinations.    USE - Electrochemical cell for causing reaction that produces hydrogen, nitrogen and carbon dioxide through oxidation of ammonia, ethanol or combinations for electric consuming device assemblage (claimed).    ADVANTAGE - Ammonia and ethanol are oxidized continuously and hence hydrogen is generated continuously using simple process with reduced cost without creating unwanted byproducts. The energy efficiency is achieved. The unique layered electrocatalyst overcomes positioning of anode and cathode due to surface blockage. The performance of carbon support is improved.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) method of manufacturing electrochemical cell;    (2) electrochemical cell stack;    (3) fuel cell;    (4) fuel cell stack;    (5) electric consuming device assemblage;    (6) electrochemical method for producing hydrogen;    (7) method for surface buffer, assisted electrolysis of water;    (8) method for open circuit electrolysis of water;    (9) layered electrocatalyst for electrochemical process for oxidizing ammonia, ethanol or combinations;    (10) sensor for detecting ammonia, ethanol or combinations; and    (11) method for making layered electrocatalyst.    DESCRIPTION OF DRAWING(S) - The drawing shows the structural view of the electrochemical cell.    Electrochemical cell (10)    Anode (11)    Layered electrocatalyst (12)    Cathode (13)    Ammonia (20)    Ethanol (22)    Basic electrolyte (36)