The new method for prapered high activing catalyst of cobalt complex

• Main Authors: LAI, YAO-SHENG, CHEN, YU-WEN, CHANG, SU-MING, HSIEH, CHING-YUAN, CHUANG, HUEY-JAN
• Format: Patent
• Language: Chinese; English
• Published: 16.12.2009
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

This invention associates the method of hydrogen generation based on sodium borohydride. The catalyst used is a CoBx catalyst, x is the molar ratio of B to Co, x is in the range of 0.01 ≤ x ≤ 0.5. It is prepared using cobalt salt, boron-containing materials is used as the reducing agent. This catalyst has a diameter in the nanosize range, the diameter is less than 100 nm and higher than 5nm. It is amorphous. The specific surface area is greater than 5 m2/g. The hydrogen generation reaction is carried out in a reactor. The reaction temperature is controlled between 25 and 50 DEG C. Sodium borohydride solution and sodium hydroxide solution are injected into the reactor. Sodium hydroxide solution acts as a stabilizer and the weight percentage is between 3 and 25%. The pH value is between 11 and 13. The hydrogen volume is measured by water displacement method.