Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).

Abstract: A porous formed body (Y) including a porous formed body (X) that satisfies the following (x-1) to (x-3), and an alkali metal carbonate or an alkali metal bicarbonate, in which a content of the alkali metal carbonate or the alkali metal bicarbonate is in a range of from 1 part by mass to 230 parts by mass, with respect to 100 parts by mass of the porous formed body (X), and a production method thereof, an ?-olefin dimerization catalyst and a production method thereof, and a method of producing an ?-olefin dimer: requirement (x-1): a volume of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from 0.10 mL/g to 1.00 mL/g; requirement (x-2): a median pore diameter of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from more than 0.01 ?m to 10.0 ?m; and requirement (x-3): a crushing strength is from 0.7 kgf to 15.0 kgf.

Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).

Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).

Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).

Abstract: A porous formed body (Y) including a porous formed body (X) that satisfies the following (x-1) to (x-3), and an alkali metal carbonate or an alkali metal bicarbonate, in which a content of the alkali metal carbonate or the alkali metal bicarbonate is in a range of from 1 part by mass to 230 parts by mass, with respect to 100 parts by mass of the porous formed body (X), and a production method thereof, an ?-olefin dimerization catalyst and a production method thereof, and a method of producing an ?-olefin dimer: requirement (x-1): a volume of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from 0.10 mL/g to 1.00 mL/g; requirement (x-2): a median pore diameter of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from more than 0.01 ?m to 10.0 ?m; and requirement (x-3): a crushing strength is from 0.7 kgf to 15.0 kgf.

Abstract: The present invention is to provide a photocatalyst electrode for water decomposition exhibiting a high photocurrent density and having reduced dark current. The photocatalyst electrode for water decomposition of the present invention has a photocatalyst layer and a current collector layer that is formed by a vapor deposition method and is disposed on the photocatalyst layer.