32results about How to "Overcoming the problem of reduced activity" patented technology

The invention discloses a nano porous copper / Cu(OH)2 nanowire array sensor electrode material and a preparation method thereof, and belongs to the technical field of micro-sensation. The preparation method of the nano porous copper / Cu(OH)2 nanowire array sensor electrode material mainly comprises the following two steps: by taking Cu-Zr-Al amorphous alloy as a precursor, preparing a flexible nano porous copper film of a double-continuous through hole structure by using a chemical alloy removing method; performing controllable growth on a Cu(OH)2 nanowire array on a nano porous copper film substrate by using an alkali oxidation method. The nano composite electrode material disclosed by the invention is of a structure similar to 'sandwich', Cu(OH)2 nanowires are uniformly and densely distributed on the nano porous copper substrate, have directivity and are uniform in morphology, large in internal specific surface area and very high in electric catalytic activity, the nano composite material can be directly used as an electrode material of a non-enzyme glucose sensor, the linear response range for glucose is 0.2-9 mM, the detection sensitivity is 2.09 mA / cm<2>.mM, the detection limit is 200 nM (S / N=-3.6), and the current response time is less than 1 second.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-35% of a silicon oxide source, 5-35% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 0.5-10% of a phosphorus oxide based on the weight of P2O5 and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-30% of a silicon oxide source, 5-30% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 0.5-10% of an alkali metal oxide, 1-20% of a molecular sieve having a BEA structure and / or a molecular sieve having an FAU structure, and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-30% of a silicon oxide source, 5-30% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 0.5-10% of a phosphorus oxide based on the weight of P2O5, 1-20% of a phosphorus-aluminum molecular sieve, and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-30% of a silicon oxide source, 5-30% of a non-aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 1-20% of a molecular sieve having a BEA structure and / or a molecular sieve having an FAU structure, and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The non-aluminum oxide is at least one of zirconium dioxide, titanium dioxide and stannic dioxide. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The present invention discloses a desulfurization catalyst, which contains, by weight, 5-35% of a silica source, 5-35% of alumina, 30-70% of zinc oxide, 2-15% of lead oxide, and 5-30% of an active metal, wherein at least part of the lead oxide exists in the form for forming the zinc lead solid solution represented by a general formula PbxZn1-xO with the zinc oxide, x is more than 0 and is less than or equal to 0.12, x represents an atomic molar ratio, and the active metal is at least one selected from cobalt, nickel, iron and manganese. The present invention further provides a desulfurization catalyst preparation method and a hydrocarbon oil desulfurization method. The desulfurization catalyst of the present invention has good desulfurization activity and good activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-35% of a silicon oxide source, 5-35% of a non-aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The non-aluminum oxide is at least one of zirconium dioxide, titanium dioxide and stannic dioxide. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-35% of a silicon oxide source, 5-35% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 0.5-10% of an alkali metal oxide and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-30% of a silicon oxide source, 5-30% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 0.5-10% of a phosphorus oxide based on the weight of P2O5, 1-20% of a molecular sieve having a BEA structure and / or a molecular sieve having an FAU structure, and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-30% of a silicon oxide source, 5-30% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 1-20% of a phosphorus-aluminum molecular sieve, and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-30% of pillared interlayered clay, 5-30% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 1-20% of a molecular sieve having a BEA structure and / or a molecular sieve having an FAU structure, and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-35% of a silicon oxide source, 5-35% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 0.5-10% of an alkaline-earth metal oxide and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.

The invention discloses a desulfurization catalyst which includes following components, on the basis of the total weight of the desulfurization catalyst, by weight: 5-30% of a silicon oxide source, 5-30% of aluminum oxide, 30-70% of zinc oxide, 2-15% of lead oxide, 1-20% of a molecular sieve having a BEA structure and / or a molecular sieve having an FAU structure, and 5-30% of an active metal. At least partial lead oxide and the zinc oxide are formed into a zinc-lead solid solution with a general formula being Pb<x>Zn<1-x>O, wherein 0<x<=0.12 and the x refers to atom molar ratio. The active metal is at least one of cobalt, nickel, iron and manganese. The invention also provides a preparation method of the desulfurization catalyst and a hydrocarbon oil desulfurizing method. The desulfurization catalyst is better in desulfurization activity and activity stability.