Electrolysis device and refrigerator

Abstract

An electrolysis device of an embodiment includes: an anode, a cathode having a nitrogen-containing carbon alloy catalyst, and an electrolysis cell having a membrane electrode assembly composed of an electrolyte present between the anode and the cathode so that voltage is applied to the anode and the cathode, wherein the electrolyte is any one of acidic, neutral, or alkali, water is produced by the electrolysis device at the cathode, when the electrolyte is acidic, and hydroxide ion is produced by the electrolysis device at the anode, when the electrolyte is neutral or alkali.

1 . An electrolysis device comprising: an anode,
 a cathode having a nitrogen-containing carbon alloy catalyst, and   an electrolysis cell having a membrane electrode assembly composed of an electrolyte present between the anode and the cathode,   
       and voltage is applied to the anode and the cathode, 
       wherein
 the electrolyte is any one of acidic, neutral, or alkali, 
 water is produced by the electrolysis device at the cathode, when the electrolyte is acidic, and 
 hydroxide ion is produced by the electrolysis device at the anode, when the electrolyte is neutral or alkali. 
 
     
     
         2 . The device according to  claim 1 , wherein the electrolyte of the membrane electrode assembly is an acidic membrane having cation exchange ability. 
     
     
         3 . The device according to  claim 1 , wherein the electrolyte of the membrane electrode assembly is a neutral or alkali membrane having anion exchange ability. 
     
     
         4 . The device according to  claim 1 , wherein the electrolysis cell is provided in a sealable vessel. 
     
     
         5 . The device according to  claim 1 , wherein, compared to amount of elements on surface, 0.1 atm % or more to 30 atm % or less of the carbon in the carbon alloy catalyst is substituted with nitrogen. 
     
     
         6 . The device according to  claim 1 , wherein, compared to amount of elements on surface, 0.1 atm % or more to 10 atm % or less of the carbon in the carbon alloy catalyst is substituted with nitrogen. 
     
     
         7 . The device according to  claim 1 , wherein a part of the carbons forming Sp2 hybrid orbital with each other in the carbon alloy catalyst is substituted with nitrogen. 
     
     
         8 . The device according to  claim 1 , wherein the carbon alloy catalyst has a pyridine type nitrogen substitution. 
     
     
         9 . The device according to  claim 1 , wherein the carbon alloy catalyst has a pyrrole•pyridone type nitrogen substitution. 
     
     
         10 . The device according to  claim 1 , wherein the carbon alloy catalyst has an N oxide type nitrogen substitution. 
     
     
         11 . The device according to  claim 1 , wherein the carbon alloy catalyst has a pore and 60% or more of the pore has a diameter of 20 nm or more. 
     
     
         12 . The device according to  claim 1 , wherein the carbon alloy catalyst has a specific surface area of 100 m 2 /g to 1200 m 2 /g. 
     
     
         13 . A refrigerator comprising:
 an electrolysis device which including at least an anode, a cathode having a nitrogen-containing carbon alloy catalyst, and an electrolysis cell having a membrane electrode assembly composed of an electrolyte present between the anode and the cathode,   
       and voltage is applied to the anode and the cathode, 
       wherein
 the electrolyte is any one of acidic, neutral, or alkali, 
 water is produced by the electrolysis device at the cathode, when the electrolyte is acidic, and 
 hydroxide ion is produced by the electrolysis device at the anode, when the electrolyte is neutral or alkali. 
 
     
     
         14 . The refrigerator according to  claim 13 , wherein the electrolyte of the membrane electrode assembly is an acidic membrane having cation exchange ability. 
     
     
         15 . The refrigerator according to  claim 13 , wherein the electrolyte of the membrane electrode assembly is a neutral or alkali membrane having anion exchange ability. 
     
     
         16 . The refrigerator according to  claim 13 , wherein the electrolysis cell is provided in a sealable vessel. 
     
     
         17 . The refrigerator according to  claim 13 , wherein, compared to amount of elements on surface, 0.1 atm % or more to 30 atm % or less of the carbon in the carbon alloy catalyst is substituted with nitrogen. 
     
     
         18 . The refrigerator according to  claim 13 , wherein a part of the carbons forming Sp2 hybrid orbital with each other in the carbon alloy catalyst is substituted with nitrogen. 
     
     
         19 . The refrigerator according to  claim 13 , wherein the carbon alloy catalyst has at least one of a pyridine type nitrogen substitution, a pyrrole•pyridone type nitrogen substitution, and an N oxide type nitrogen substitution. 
     
     
         20 . The refrigerator according to  claim 13 , wherein the carbon alloy catalyst comprises a pore, 60% or more of the pore has a diameter of 20 nm or more, and the carbon alloy catalyst has a specific surface area of 100 m 2 /g or more to 1200 m 2 /g or less.