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1. CN101467285 - Carbon particle having deposited fine particles, process forproducing the same, and electrode for fuel cell

Office China
Application Number 200780021841.9
Application Date 12.06.2007
Publication Number 101467285
Publication Date 24.06.2009
Grant Number 101467285
Grant Date 07.09.2011
Publication Kind B
IPC
H01M 4/96
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
96Carbon-based electrodes
H01M 4/86
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
H01M 4/88
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
H01M 4/90
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
H01M 8/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
B01J 23/89
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
70of the iron group metals or copper
89combined with noble metals
CPC
B82Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
30Nanotechnology for materials or surface science, e.g. nanocomposites
C01B 32/05
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
05Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
C01G 49/0054
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
49Compounds of iron
0018Mixed oxides or hydroxides,
0054containing one rare earth metal, yttrium or scandium
C01G 51/003
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
51Compounds of cobalt
003Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
C01G 51/006
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
51Compounds of cobalt
006Compounds containing, besides cobalt, two or more other elements, with the exception of oxygen or hydrogen
C01P 2002/34
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2002Crystal-structural characteristics
30Three-dimensional structures
34perovskite-type (ABO3)
Applicants Toyota Motor Co., Ltd.
日立麦克赛尔株式会社
丰田自动车株式会社
Inventors Sawaki Yuko
泽木裕子
Kishimoto Mikio
岸本干雄
Nakanishi Haruyuki
中西治通
Murata Shigeaki
村田成亮
Imanishi Masahiro
今西雅弘
Agents zhong jing
北京银龙知识产权代理有限公司 11243
Priority Data 2006164095 13.06.2006 JP
Title
(EN) Carbon particle having deposited fine particles, process forproducing the same, and electrode for fuel cell
(ZH) 载微粒碳粒子及其制造方法、以及燃料电池用电极
Abstract
(EN)
The present invention provides carbon particles with fine particles deposited thereon and a manufacturing method thereof. The carbon particles with fine particles deposited thereon is characterized in that the surface of carbon particle is loaded with perovskite type composite metal oxide particles. The entire body particle of the perovskite type composite metal oxide particle is provided with noble metal particle. The carbon particles with fine particles deposited thereon can replace the commonly used platinum-loaded carbon particle or metal platinum particle for being used as electrode catalyst of fuel cell, etc. Furthermore the use amount of platinum can be greatly reduced compared with the previous platinum-loaded carbon particle. The structure is that the perovskite type composite metal oxide particle is loaded on the carbon particle. The entire body of perovskite type composite metal oxide particle is provided with noble metal particles and the dimension of minicrystal is 1-20nm. For manufacturing the carbon particles with fine particles deposited thereon, the method comprising the following steps can be adopted: preparing a solution comprising the metal complexion forming the perovskite type composite metal oxide particles and noble metal particles, subsequently repeating the step of impregnating the solution into carbon particles and dried the particles thereby adsorbing complex ions of the metal onto the carbon particles, and then subjecting the resultant particles to heat treatment.

(ZH)

本发明提供载微粒碳粒子及其制造方法,载微粒碳粒子的特征在于,在碳粒子表面负载有钙钛矿型复合金属氧化物微粒,该钙钛矿型复合金属氧化物微粒的粒子整体都存在有贵金属微粒,所述载微粒碳粒子可以代替现在通常使用的载铂碳粒子或金属铂粒子来用于燃料电池的电极用催化剂等,并且与以往的载铂碳粒子等相比,可以大大减少铂的使用量。其构成为,使钙钛矿型复合金属氧化物微粒负载在碳粒子上,所述钙钛矿型氧化物微粒的整体存在有贵金属微粒且微晶尺寸为1~20nm。作为制造这样的载微粒碳粒子的手段,可以采用以下方法:制备包含构成钙钛矿型复合金属氧化物微粒和贵金属微粒的金属的络离子的溶液,接着反复进行将碳粒子浸渍在得到的溶液中后使其干燥的工序,从而使所述金属的络离子吸附于碳粒子,然后进行热处理。