CN110743553A - 一种金属元素掺杂金属氧化物orr催化剂的制备 - Google Patents
一种金属元素掺杂金属氧化物orr催化剂的制备 Download PDFInfo
- Publication number
- CN110743553A CN110743553A CN201910960739.XA CN201910960739A CN110743553A CN 110743553 A CN110743553 A CN 110743553A CN 201910960739 A CN201910960739 A CN 201910960739A CN 110743553 A CN110743553 A CN 110743553A
- Authority
- CN
- China
- Prior art keywords
- doped
- preparation
- coo
- catalyst
- metal oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 7
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 7
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims abstract description 10
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- 239000002243 precursor Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002244 precipitate Substances 0.000 claims abstract description 7
- 238000001354 calcination Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000012456 homogeneous solution Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000007709 nanocrystallization Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9091—Unsupported catalytic particles; loose particulate catalytic materials, e.g. in fluidised state
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
Abstract
本发明涉及一种金属元素掺杂金属氧化物ORR催化剂的制备方法,包括下列步骤:1)将Co(NO3)2·6H2O、Cu(NO3)2·3H2O、CON2H4和CTAB溶于适量去离子水中,形成均匀的溶液;2)将上述均匀溶液加热到80‑120℃下并保温一段时间,得到深灰色沉淀;3)收集2)中的深灰色沉淀,清洗后再干燥,得到Cu掺杂CoO前驱体;4)将3)获得的Cu掺杂CoO前驱体在Ar气氛中500‑700℃煅烧一段时间,获得最终的Cu掺杂CoO催化剂。
Description
技术领域
本发明属于电催化氧还原技术领域,涉及一种元素掺杂金属氧化物电催化氧还原材料的制备方法。
背景技术
随着现代社会的快速发展,能源资源需求量变得越来越大,以支持社会和人类生活。目前,大多数能源是由石油,煤炭,天然气等化石燃料生产的。然而,这些传统能源造成了严重的环境污染,严重影响了人类的生命和健康。人们希望以干净的方式发现下一代可再生能源设备,以取代传统的化石燃料。金属空气电池被认为是开发高效清洁能源设备的理想途径。提高金属空气电池性能的挑战之一是改善阴极上氧还原反应(ORR)的缓慢过程。
贵金属Pt在催化氧还原反应过程中起主要作用。然而,由于储量有限、成本较高以及稳定性较差限制了其应用。因此,探索高效、耐久性和低成本的非贵金属催化剂用来代替贵金属Pt材料是电催化领域研究的重点和关键,这具有重要的商业价值和意义。
近来,已经发现了几种有希望来代替Pt作为ORR的催化剂,例如金属碳化物、硫化物、硼化物、磷化物、氧化物等。由于稳定性和低成本,过渡族金属氧化物通常被认为可以替代贵金属基催化剂。然而,差的电导率和惰性位点阻碍了其广泛的应用。为了应对这些挑战,仍需要做出更大努力来进一步改善其活动和竞争力。纳米化,高电导率涂层和过渡金属掺杂通常被用于改善电催化性能。在这些方法中,掺杂具有良好的调节电子密度和活性位点以加速ORR动力学的能力,可以得到在催化活性和稳定性上都比较理想的催化剂。
基于以上背景,本发明致力于研发出一种Cu掺杂CoO的电催化材料的制备方法,以期待为电催化的发展提供一些新的途径和突破点。
发明内容
本发明提供了一种通过水热和退火处理制备ORR催化剂的方法。操作方法简单可控、成本低廉,制备的材料可不经过任何后期处理直接应用,简化了工艺流程。技术方案如下:
一种金属元素掺杂金属氧化物ORR催化剂的制备方法,包括下列步骤:
1)将Co(NO3)2·6H2O、Cu(NO3)2·3H2O、CON2H4和CTAB溶于适量去离子水中,形成均匀的溶液。取用Co(NO3)2·6H2O、Cu(NO3)2·3H2O、CON2H4和CTAB的配比依次为将1.5-2mmol:0.1-0.3mmol、12-18mmol:1g;
2)将上述均匀溶液加热到80-120℃下并保温一段时间,得到深灰色沉淀;
3)收集2)中的深灰色沉淀,清洗后再干燥,得到Cu掺杂CoO前驱体;
4)将3)获得的Cu掺杂CoO前驱体在Ar气氛中500-700℃煅烧一段时间,获得最终的Cu掺杂CoO催化剂。
附图说明
图1为本发明实施例1所制备的Cu掺杂CoO的扫描电子显微镜图像;
图2为本发明实施例1所制备的Cu掺杂CoO的透射电子显微镜图像;
图3为本发明实施例1所制备的Cu掺杂CoO的x射线衍射分析图谱;
图4为本发明实施例1所制备的Cu掺杂CoO与CoO(实例3)的ORR性能对比;
图5为本发明实施例1所制备材料与实例4和5制备材料的ORR性能对比,即不同Cu掺杂含量对ORR性能的影响。
本发明未述及之处适用于现有技术。
以下给出本发明制备方法的具体实施例。这些实施例仅用于详细说明本发明制备方法,并不限制本申请权利要求的保护范围。
实施例1
1)将1.7mmol的Co(NO3)2·6H2O、0.3mmol的Cu(NO3)2·3H2O、15mmol的CON2H4和1gCTAB(十六烷基三甲基溴化铵)溶于35mL去离子水中,搅拌2h形成均匀的溶液;
2)将上述均匀溶液转移至50mL聚四氟乙烯内衬中,然后将反应釜加热到120℃下保温12h,然后将反应釜自然冷却到室温;
3)离心收集2)中的深灰色沉淀,用去离子水和酒精清洗,在真空烘箱中60℃下干燥,得到Cu掺杂CoO前驱体;
4)将3)获得的Cu掺杂CoO前驱体在Ar(300sccm)气氛中600℃煅烧2h,获得最终的Cu掺杂CoO催化剂(命名为Cu0.15Co0.85O)。
实施例2
与实施例1不同的是:只进行实例1的前3个步骤,不进行第4步的煅烧。
实施例3
与实施例1不同的是:1)将2mmol的Co(NO3)2·6H2O、15mmol的CON2H4和1g CTAB溶于35mL去离子水中,搅拌2h形成均匀的溶液(命名为CoO)。
实施例4
与实施例1不同的是:1)将1.8mmol的Co(NO3)2·6H2O、0.2mmol的Cu(NO3)2·3H2O、15mmol的CON2H4和1g CTAB溶于35mL去离子水中,搅拌2h形成均匀的溶液(命名为Cu0.10Co0.90O)。
实施例5
与实施例1不同的是:1)将1.9mmol的Co(NO3)2·6H2O、0.1mmol的Cu(NO3)2·3H2O、15mmol的CON2H4和1g CTAB溶于35mL去离子水中,搅拌2h形成均匀的溶液(命名为Cu0.05Co0.95O)。
Claims (1)
1.一种金属元素掺杂金属氧化物ORR催化剂的制备方法,包括下列步骤:
1)将Co(NO3)2·6H2O、Cu(NO3)2·3H2O、CON2H4和CTAB溶于适量去离子水中,形成均匀的溶液。取用Co(NO3)2·6H2O、Cu(NO3)2·3H2O、CON2H4和CTAB的配比依次为将1.5-2mmol:0.1-0.3mmol、12-18mmol:1g;
2)将上述均匀溶液加热到80-120℃下并保温一段时间,得到深灰色沉淀;
3)收集2)中的深灰色沉淀,清洗后再干燥,得到Cu掺杂CoO前驱体;
4)将3)获得的Cu掺杂CoO前驱体在Ar气氛中500-700℃煅烧一段时间,获得最终的Cu掺杂CoO催化剂。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910960739.XA CN110743553A (zh) | 2019-10-10 | 2019-10-10 | 一种金属元素掺杂金属氧化物orr催化剂的制备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910960739.XA CN110743553A (zh) | 2019-10-10 | 2019-10-10 | 一种金属元素掺杂金属氧化物orr催化剂的制备 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110743553A true CN110743553A (zh) | 2020-02-04 |
Family
ID=69277896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910960739.XA Pending CN110743553A (zh) | 2019-10-10 | 2019-10-10 | 一种金属元素掺杂金属氧化物orr催化剂的制备 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110743553A (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101665271A (zh) * | 2009-09-23 | 2010-03-10 | 西北大学 | 单金属掺杂改性花簇状纳米四氧化三铁储氢材料的制备方法 |
CN101947454A (zh) * | 2010-09-08 | 2011-01-19 | 中南大学 | 具有可见光催化活性的过渡金属掺杂氧化锌介孔材料及其制备方法 |
US20130323610A1 (en) * | 2012-05-29 | 2013-12-05 | Unist Academy-Industry Research Corporation | Manufacturing method of oxygen reduction reaction catalysts and catalysts thereof, cathode using oxygen reduction reaction catalysts |
CN104409724A (zh) * | 2014-12-09 | 2015-03-11 | 孚派特环境科技(苏州)有限公司 | 掺氮石墨烯-氧化钴复合材料及玻碳电极的修饰方法 |
CN108336373A (zh) * | 2017-12-27 | 2018-07-27 | 青岛科技大学 | 一种应用于锌空电池的过渡金属氧化物氮磷掺杂催化剂的制备方法 |
CN108682868A (zh) * | 2018-03-21 | 2018-10-19 | 上海理工大学 | 一种碳纳米管负载过渡金属氧化物材料的制备方法及应用 |
CN110148764A (zh) * | 2019-05-15 | 2019-08-20 | 西安交通大学 | 一种用于催化orr和oer的双功能催化剂及其制备和应用 |
-
2019
- 2019-10-10 CN CN201910960739.XA patent/CN110743553A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101665271A (zh) * | 2009-09-23 | 2010-03-10 | 西北大学 | 单金属掺杂改性花簇状纳米四氧化三铁储氢材料的制备方法 |
CN101947454A (zh) * | 2010-09-08 | 2011-01-19 | 中南大学 | 具有可见光催化活性的过渡金属掺杂氧化锌介孔材料及其制备方法 |
US20130323610A1 (en) * | 2012-05-29 | 2013-12-05 | Unist Academy-Industry Research Corporation | Manufacturing method of oxygen reduction reaction catalysts and catalysts thereof, cathode using oxygen reduction reaction catalysts |
CN104409724A (zh) * | 2014-12-09 | 2015-03-11 | 孚派特环境科技(苏州)有限公司 | 掺氮石墨烯-氧化钴复合材料及玻碳电极的修饰方法 |
CN108336373A (zh) * | 2017-12-27 | 2018-07-27 | 青岛科技大学 | 一种应用于锌空电池的过渡金属氧化物氮磷掺杂催化剂的制备方法 |
CN108682868A (zh) * | 2018-03-21 | 2018-10-19 | 上海理工大学 | 一种碳纳米管负载过渡金属氧化物材料的制备方法及应用 |
CN110148764A (zh) * | 2019-05-15 | 2019-08-20 | 西安交通大学 | 一种用于催化orr和oer的双功能催化剂及其制备和应用 |
Non-Patent Citations (1)
Title |
---|
CHENGCHENG CHEN ET AL.: "Controllable synthesis of Cu-doped CoO hierarchical structure for high performance lithium-ion battery", 《JOURNAL OF POWER SOURCES》 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109621981B (zh) | 一种金属氧化物-硫化物复合析氧电催化剂及其制备方法和应用 | |
WO2021232751A1 (zh) | 一种多孔CoO/CoP纳米管及其制备方法和应用 | |
CN112563517B (zh) | 一种稀土金属掺杂的碳基氧还原电催化剂的制备方法 | |
CN114807996A (zh) | 一种单原子铂负载过渡金属磷化物析氢催化剂的制备方法 | |
CN109759066B (zh) | 一种硼掺杂石墨烯负载的钴镍双金属氧化物析氧催化剂的制备方法 | |
CN113215610A (zh) | 负载3d过渡金属单原子的多孔道氮掺杂的碳纳米纤维复合材料及其制备方法和应用 | |
CN114293200B (zh) | 一种多孔碳负载非晶态/晶态钌基高效析氢催化剂及其制备与应用 | |
CN114042467B (zh) | 一种纳米镍簇和碳化钒颗粒修饰的超薄碳层复合材料及其制备方法和应用 | |
CN112542592A (zh) | 一种杂原子掺杂钴钼双元金属碳化物纳米复合材料及其制备方法和应用 | |
CN112058282A (zh) | 一种基于钼、钨基层状材料pH广适催化剂的制备方法及其应用于电解水析氢反应 | |
CN110649276A (zh) | 一种基于n2等离子刻蚀的立体式多孔氮掺杂碳纳米管电催化剂及其制备方法 | |
CN114150341A (zh) | 一种过渡金属硒化物电催化材料及其制备方法与应用 | |
CN113652698A (zh) | 一种具有交叉纳米片结构的钨掺杂磷化镍双功能催化材料 | |
CN112553643A (zh) | 一种氮掺杂碳包覆非贵双金属钴钼氧化物析氧反应催化剂、制备方法及应用 | |
CN112657521A (zh) | 一种原位生长在碳布上的铬掺杂磷化钴纳米棒阵列的制备方法 | |
CN109097788B (zh) | 一种双碳耦合过渡金属镍基量子点电催化剂及其制备方法 | |
CN108336373B (zh) | 一种应用于锌空电池的过渡金属氧化物氮磷掺杂催化剂的制备方法 | |
CN110743553A (zh) | 一种金属元素掺杂金属氧化物orr催化剂的制备 | |
CN110947408B (zh) | 一种铁单原子催化剂及其制备方法和应用 | |
CN109647476B (zh) | 一种金属与金属氧化物复合her催化剂的制备方法 | |
CN113277514A (zh) | 一种过渡金属碳化物Mo2C材料的制备方法 | |
CN109012683B (zh) | 一种钼酸钴空心微球电催化剂的制备方法 | |
CN113529131A (zh) | 一种大电流密度下析氢电催化材料及其制备方法和应用 | |
CN115739143B (zh) | 一种Pt/α-MoC-CeO2催化剂及其制备方法和在甲醇水蒸汽制氢中的应用 | |
CN115058736B (zh) | 一种过渡金属异质结构电催化产氢催化剂制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200204 |
|
RJ01 | Rejection of invention patent application after publication |