Preparation for load type gold catalyst by bacterial reduction method

Preparation for load type gold catalyst by bacterial reduction method

The present invention relates to a method for preparing load type metal catalyst. Said invention is characterized by that it adopts isochoric impregnating method to make Au3+ in chlorauric acid solution load on surface of metal oxide MxOy to obtain catalyst precursor Au3+/MxOy, in which the weight r...

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Hauptverfasser: JINKUN FU, SHENGZHOU WEN, GINGXIN YAO
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CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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creator JINKUN FU
SHENGZHOU WEN
GINGXIN YAO
description The present invention relates to a method for preparing load type metal catalyst. Said invention is characterized by that it adopts isochoric impregnating method to make Au3+ in chlorauric acid solution load on surface of metal oxide MxOy to obtain catalyst precursor Au3+/MxOy, in which the weight ratio of Au3+ and MxOy is 1%-3%, then the bacterial suspension containing D01 and Au3+/MxOy are reacted for 0.5-2hr., reaction temp. is 15-50 deg.C, pH value is 2.0-5.0 to obtain Au0/MxOy catalyst. Said invention utilizes the bacteria to in-situ reduce Au3+ into high-dispersed metal nanometer particles, and the Au3+ reducibility on the carrier surface is up to 85%-100%,Au0 particle diameter is 4.5-12 nm. Said catalyst can be used in CO catalytic conversion reaction, CO conversion rate is 100%, and its stationary phase is up to 75h.
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Said invention is characterized by that it adopts isochoric impregnating method to make Au3+ in chlorauric acid solution load on surface of metal oxide MxOy to obtain catalyst precursor Au3+/MxOy, in which the weight ratio of Au3+ and MxOy is 1%-3%, then the bacterial suspension containing D01 and Au3+/MxOy are reacted for 0.5-2hr., reaction temp. is 15-50 deg.C, pH value is 2.0-5.0 to obtain Au0/MxOy catalyst. Said invention utilizes the bacteria to in-situ reduce Au3+ into high-dispersed metal nanometer particles, and the Au3+ reducibility on the carrier surface is up to 85%-100%,Au0 particle diameter is 4.5-12 nm. 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subjects CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
title Preparation for load type gold catalyst by bacterial reduction method
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