公开(公告)号：US20240263326A1

公开(公告)日：2024-08-08

申请号：US18561810

申请日：2022-05-19

申请人： HYDROGENPRO ASA

发明人： Lars Pleth NIELSEN ,  Richard ESPESETH ,  Per MØLLER ,  Marcus Viktor KRAGH-SCHWARZ ,  Morten Linding FREDERIKSEN

IPC分类号： C25B11/052 ,  C25B1/04 ,  C25B11/031 ,  C25B11/061 ,  C25B11/075 ,  C25D5/40 ,  C25D5/48 ,  C25D5/50

CPC分类号： C25B11/052 ,  C25B11/031 ,  C25B11/061 ,  C25B11/075 ,  C25D5/40 ,  C25D5/48 ,  C25D5/50 ,  C25B1/04

摘要： The present invention relates to a method for producing an electrode for alkaline electrolysis based on a composition of metal sulfides on a Ni foam substrate. The metal can be Mo, Ni, Co, Fe and/or W. In a first step S1), there is performed a metal deposition, e.g. by electroplating, the metal, Me1/Me2, being Mo, Ni, Co, Fe, and/or W, on a Ni foam substrate resulting in a metal-Ni compound being formed on and/or in the Ni foam substrate. In a second step, S2) there is performed a sulfiding on the metal-Ni compound from the first step S1). The third step S3) is an optional repetition of S1 and/or S2 at least one time. The step S1) and step S2) thereby result in the formation of electrocatalytic active nano-sites with Me1-Me2-S—Ni compounds. It is found that these nano-sites are capable of reducing the so-called overpotential of the electrodes during alkaline water electrolysis, and the production of electrodes may be significantly simplified.

公开(公告)号：US20240229259A1

公开(公告)日：2024-07-11

申请号：US18561821

申请日：2022-05-19

申请人： HYDROGENPRO ASA

发明人： Lars Pleth NIELSEN ,  Richard ESPESETH ,  Per MØLLER ,  Marcus Viktor KRAGH-SCHWARZ ,  Morten Linding FREDERIKSEN

IPC分类号： C25B11/052 ,  C23C8/02 ,  C23C8/08 ,  C23C8/80 ,  C25B1/04 ,  C25B11/031 ,  C25B11/061 ,  C25B11/075 ,  C25D5/10 ,  C25D5/12 ,  C25D5/40 ,  C25D5/48 ,  C25D5/50

CPC分类号： C25B11/052 ,  C23C8/02 ,  C23C8/08 ,  C23C8/80 ,  C25B11/031 ,  C25B11/061 ,  C25B11/075 ,  C25D5/10 ,  C25D5/12 ,  C25D5/40 ,  C25D5/48 ,  C25D5/50 ,  C25B1/04

摘要： The present invention relates to a method for producing an electrode for alkaline electrolysis based on a composition of sulfides on a Ni foam substrate. In a step. S2) there is performed a sulfiding on the Ni substrate. The step of sulfiding results in the formation of electrocatalytic active nano-sites with Ni—S compounds. It is found that these nano-sites are capable of reducing the so-called overpotential of the electrodes during alkaline water electrolysis, and the production of electrodes may be significantly simplified. In particular, already existing electrolyzer units may benefit from this invention by on-site application of the improved method.