US EPA

4402171 

Journal Article 

A New Type Hydrogen Permeable Membrane and Application for H2O2 Synthesis 

Yamanaka, I; Satake, Y; Pantira, P; Hiraki, D; Ogihara, H 

2017 

2 

1 

464-468 

10.1002/slct.201601321 

WOS:000395434600065 

Development of a hydrogen permeable membrane reactor in chemical process has been desired because of a great reduction of energy consumption. Previous studies were limited to Pd membranes. A new type of hydrogen permeable membrane layered three sheets (a reduction-Pt-catalyst sheet broken vertical bar a proton and electron co-conductive sheet broken vertical bar an oxidation-Ptcatalyst sheet) was developed. The middle sheet was prepared by casting a paste of carbon powder and Nafion solution. When a gas mixture of H-2 and He (1: 1) was introduced to the oxidation-catalyst compartment at 298 K, a high concentration of H-2 was observed in the reduction-catalyst compartment, a maximum H-2/He ratio as 217. H-2 selectively permeated through the membrane. This concept was applied for synthesis of H2O2. When O-2 and H-2 were respectively introduced to the Co-N -C reduction-catalyst and the Pt oxidation-catalyst, production of a pure H2O2 aqueous solution of 3.8 mol dm (-3) was succeeded with a good selectivity as 42% based on H2 at 278 K.