CN114425345A - Co3O4/CeO2异质结纳米复合材料及其制法 - Google Patents
Co3O4/CeO2异质结纳米复合材料及其制法 Download PDFInfo
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Abstract
该发明专利名称为:“Co3O4/CeO2异质结纳米复合材料及其制法”,所属领域:电催化剂与制备。通过两步法制备Co3O4/CeO2异质结纳米复合材料:首先,溶剂热法制备CeO2的前驱体,其次用硝酸钴溶液浸渍CeO2的前驱体,经烘干、煅烧形成异质结纳米复合材料,其中58.6wt%Co3O4/CeO2(58.6wt%为Co3O4与CeO2的质量比)复合材料是很好的碱性电解水的阳极催化剂,性能超过商用RuO2,具有很好的应用前景。本发明公开了这种材料及其制法。
Description
技术领域
本发明涉及Co3O4/CeO2异质结纳米复合材料及制法。具体地说,在CeO2纳米颗粒上生长Co3O4纳米颗粒异质结构复合材料,在碱性条件下具有良好的电催化析氧作用。
背景技术
电解水由析氢反应和析氧反应两个半反应组成。由于析氧反应是一个四电子反应,动力学缓慢,较高的过电势制约了电解水制氢技术的发展。目前,RuO2和IrO2是最好的析氧反应催化剂,但是高成本和低储量不利于电解水制氢的可持续发展,因此,发展开发高活性低廉的非贵金属催化剂至关重要。钴基尖晶石氧化物,特别是Co3O4被认为是碱性条件下的极具潜力的析氧电催化剂。然而,纯Co3O4导电性不足、暴露的活性位点较少且易自聚集,使其析氧活性仍未达到商用要求。将Co3O4与其他金属氧化物复合是提高Co3O4析氧活性是有效方法[参见:(a)Yang X et al.2020 Journal of Alloys and Compounds 828154394.(b)Tahir M et al.2017 ACS Energy Letters 2 2177.(c)Wei XJ et al.2019Chemical Communications 55 6515]。近年来,储量丰富的稀土氧化物CeO2因其独特的理化性质,例如良好的氧化还原能力和大量的氧空位,引起了广泛的研究关注。具有Ce3+和Ce4 +氧化态的CeO2表面氧离子交换可逆、储氧能力强、电子/离子传导性出色且能与其他材料产生强电子耦合[参见:(a)Liu ZQ et al.2017 Chemical Science 8 3211.(b)Li DJ etal.2017 J.Mater.Chem.A 5 20126]。因此,有望通过复合Co3O4和CeO2来提高Co3O4的析氧活性。尽管已经开发出许多含有Co3O4和CeO2复合催化剂[参见:(a)Liu K et al.2016 ACSAppl.Mater.Interfaces 8 34422.(b)He XB et al.2019 J.Mater.Chem.A 7 6753],但化学成分、制备方法与用途与本实验不尽相同。在这里我们用简易的方法合成58.6wt%Co3O4/CeO2(58.6%为Co3O4与CeO2的质量比,以下相同)异质结纳米复合催化剂并用于电催化析氧反应,性能已超出商用的RuO2,本产品电催化性能高,原料价格低廉,制备方法简单易实施。
发明内容
本发明的目的是Co3O4/CeO2异质结纳米复合材料及制备方法。
本发明的技术方案如下:
一种Co3O4/CeO2异质结纳米复合材料为Co3O4纳米颗粒负载在CeO2纳米颗粒的表面的异质结构。
制备方法分两步:(1)将一定量的Ce3+的盐溶解于乙二醇的溶液中,在一定的温度下溶剂热处理,经抽滤、洗涤、干燥获得CeO2的前驱体;(2)称量一定量的上述前驱体放入容器中,然后称量相应配比的Co2+的硝酸盐并溶于纯水中,再将溶液均匀滴加在前驱体上,在90℃下干燥1h,最后在马弗炉中450℃焙烧3h,获得Co3O4/CeO2异质结纳米复合材料,调节钴盐与前驱体的不同的配比,获得不同比例的Co3O4/CeO2异质结材料。
本发明的Co3O4/CeO2复合材料经XRD测定,产品为Co3O4和CeO2两相共存(如图1)。通过SEM(如图2)和TEM照片(如图3)可以确定在Co3O4/CeO2复合材料中,为Co3O4颗粒负载在CeO2纳米棒状的表面,高分辨电镜确定已形成异质结。
从电化学极化曲线(LSV)中可以看出,58.6wt%Co3O4/CeO2复合材料具有最低的电催化析氧(OER)过电势,优于商业RuO2催化剂(图4(a))。同样地,不同负载量的Co3O4/CeO2复合材料中,58.6wt%Co3O4//CeO2复合材料性能最好(图4(b)),也具有良好的催化稳定性(见图4(c)),因此,58.6wt%Co3O4/CeO2异质结纳米复合材料在碱性电催化分解水方面有很好的应用前景。本发明制备的Co3O4/CeO2纳米复合材料,方法原料简单易得、条件简便易行。
附图说明
图1为本发明的CeO2、Co3O4以及X wt%Co3O4/CeO2(X=14.6,29.3,43.9,58.6,73.2,87.8,102.5;X wt%为Co3O4与CeO2的质量比,其余皆同)纳米复合材料的XRD图。
图2为本发明的CeO2以及58.6wt%Co3O4/CeO2纳米复合材料的SEM照片。
图3为本发明的58.6wt%Co3O4/CeO2纳米复合材料的TEM照片。
图4为本发明:(a)CeO2、Co3O4和58.6wt%Co3O4/CeO2和(b)X wt%Co3O4/CeO2(X=14.6,29.3,43.9,58.6,73.2,87.8,102.5)纳米复合材料的LSV曲线;(c)58.6wt%Co3O4/CeO2纳米复合材料的稳定性图。
具体实施方式
实施例1. 58.6wt%Co3O4/CeO2异质结纳米复合材料的制备
(1)CeO2的前驱体制备:6.0791g Ce(NO3)3·6H2O溶解在50mL乙二醇中,剧烈搅拌1h得到均一溶液。将以上溶液转移至聚四氟乙烯内衬的不锈钢反应釜中,并在180℃下保持28h。自然冷却至室温后,通过抽滤分离并用水和乙醇洗涤产物,最后在60℃真空干燥12h。
(2)58.6wt%Co3O4/CeO2异质结纳米复合材料制备:将0.7252g Co(NO3)2·6H2O溶解于1.5mL纯水中得到均一溶液,称取0.5g前驱体放入陶瓷坩埚中,将所得溶液均匀滴在前驱体上并于90℃下干燥1h,最后在马弗炉中450℃焙烧3h,升温速率为10℃ min-1,得到产品。
实施例2.X wt%Co3O4/CeO2(X=14.6,29.3,43.9,73.2,87.8,102.5)异质结纳米复合材料的制备
(1)CeO2的前驱体制备:同实例1(1)CeO2的前驱体制备。
(2)X wt%Co3O4/CeO2(X=14.6,29.3,43.9,73.2,87.8,102.5)异质结纳米复合材料制备:称取0.1813g,0.3626g,0.5439g,0.9065g,1.0878g,1.2691g Co(NO3)2·6H2O分别溶于1.5mL纯水中得到6份均一溶液。分别称取6份0.5g CeO2的前驱体放入6个陶瓷坩埚中,将前面6份溶液分别均匀滴加到6份CeO2的前驱体上,并于90℃下干燥1h,然后在马弗炉中450℃焙烧3h,升温速率为10℃min-1,将得到上述6份异质结产品。
本实施例1、2制得的Co3O4/CeO2复合氧化物经XRD测定,证明了Co3O4和CeO2两相共存(见图1)。通过SEM(见图2)和TEM照片(图3),58.6wt%Co3O4/CeO2复合氧化物中Co3O4颗粒负载在棒状堆积而成的CeO2表面。将制得的CeO2、Co3O4以及X wt%Co3O4/CeO2(X=14.6,29.3,43.9,58.6,73.2,87.8,102.5)复合氧化物进行OER性能测试,结果见图4(a,b)。58.6wt%Co3O4/CeO2纳米复合材料的稳定性见图4(c)。
实施例3.X wt%Co3O4/CeO2(X=14.6,29.3,43.9,58.6,73.2,87.8,102.5)异质结纳米复合材料的制备
(1)CeO2的前驱体制备:5.2173g CeCl3·7H2O溶解在50mL乙二醇中,剧烈搅拌1h得到均一溶液。将以上溶液转移至聚四氟乙烯内衬的不锈钢反应釜中,并在180℃下保持28h。自然冷却至室温后,通过抽滤分离并并用水和乙醇洗涤洗涤产物,最后在60℃真空干燥12h。
(2)X wt%Co3O4/CeO2(X=14.6,29.3,43.9,58.6,73.2,87.8,102.5)异质结纳米复合材料制备:称取0.1813g,0.3626g,0.5439g,0.7252g,0.9065g,1.0878g,1.2691g Co(NO3)2·6H2O分别溶于1.5mL纯水中得到7份均一溶液。分别称取7份0.5g CeO2的前驱体放入7个陶瓷坩埚中,将前面7份溶液分别均匀滴加到7份CeO2的前驱体上,并于90℃下干燥1h,然后在马弗炉中450℃焙烧3h,升温速率为10℃ min-1,将得到上述7份异质结产品。
Claims (3)
1.一种55-60wt%Co3O4/CeO2异质结纳米复合材料,其55-60wt%为Co3O4与CeO2的质量比。
2.一种制备权利要求1所述的制备方法,其特征是分两步:(1)称取一定量的Ce(NO3)3·6H2O(无水或含其它结晶水的Ce(NO3)3)溶解在乙二醇中,剧烈搅拌1h得到均一溶液。将以上溶液转移至聚四氟乙烯内衬的不锈钢反应釜中,并在180℃下保持28h。自然冷却至室温后,通过抽滤分离并洗涤产物,在60℃真空干燥得到CeO2的前驱体;(2)称取一定量上述前驱体放置坩埚中,再称取一定量的Co(NO3)2·6H2O(无水或含其它结晶水的Co(NO3)2)溶解于纯水中得到均一溶液(保证最后产品Co3O4和CeO2质量比为55-60wt%),将所得溶液均匀滴在前驱体上并于90℃下干燥1h,最后在马弗炉中450℃焙烧3h,得到产品。
3.一种制备权利要求1所述的第二种制备方法,其特征是分两步:(1)称取一定量的CeCl3·7H2O(无水或含其它结晶水的CeCl3),溶解在乙二醇中,剧烈搅拌1h得到均一溶液。将以上溶液转移至聚四氟乙烯内衬的不锈钢反应釜中,并在180℃下保持28h。自然冷却至室温后,通过抽滤分离并洗涤产物,在60℃真空干燥得CeO2的前驱体;(2)称取一定量上述前驱体放置坩埚中,再称取一定量的Co(NO3)2·6H2O(无水或含其它结晶水的Co(NO3)2)溶解于纯水中得到均一溶液(保证最后产品中Co3O4和CeO2质量比为55-60wt%),将所得溶液均匀滴在前驱体上并于90℃下干燥1h,最后在马弗炉中450℃焙烧3h,得到产品。
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105498782A (zh) * | 2016-01-07 | 2016-04-20 | 昆明理工大学 | 一种立方形貌纳米复合金属氧化物催化剂CeO2-Co3O4的制备方法 |
CN105597769A (zh) * | 2016-01-08 | 2016-05-25 | 昆明理工大学 | 一种片状形貌纳米复合金属氧化物催化剂CeO2-Co3O4的制备方法 |
CN105854887A (zh) * | 2016-03-25 | 2016-08-17 | 武汉工程大学 | 一种钴铈双金属氧化物纳米球及其制备方法 |
WO2017100743A1 (en) * | 2015-12-10 | 2017-06-15 | University Of Pittsburgh-Of The Commonwealth System Of Higher Education | Highly active, robust and versatile multifunctional, fully non-noble metals based electro-catalyst compositions and methods of making for energy conversion and storage |
CN107362804A (zh) * | 2017-07-14 | 2017-11-21 | 重庆交通大学 | 花状Co3O4‑CeO2复合氧化物催化剂的制备方法 |
CN109289858A (zh) * | 2018-10-26 | 2019-02-01 | 天津大学 | 一种氧化钴二氧化铈复合氧化物、其制备方法及用途 |
CN110124713A (zh) * | 2019-04-24 | 2019-08-16 | 南京师范大学 | 一种氮掺杂碳纳米纤维负载空心结构Co3O4/CeO2纳米粒子材料的制备方法和应用 |
CN110665519A (zh) * | 2019-09-25 | 2020-01-10 | 盐城师范学院 | 一种可见光驱动下活化过一硫酸氢钾复合盐的CeO2/Co3O4光催化剂的制备方法 |
CN111195518A (zh) * | 2020-01-10 | 2020-05-26 | 兰州大学 | NiO/Co3O4的制备方法及其应用 |
-
2020
- 2020-10-15 CN CN202011128414.4A patent/CN114425345A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017100743A1 (en) * | 2015-12-10 | 2017-06-15 | University Of Pittsburgh-Of The Commonwealth System Of Higher Education | Highly active, robust and versatile multifunctional, fully non-noble metals based electro-catalyst compositions and methods of making for energy conversion and storage |
CN105498782A (zh) * | 2016-01-07 | 2016-04-20 | 昆明理工大学 | 一种立方形貌纳米复合金属氧化物催化剂CeO2-Co3O4的制备方法 |
CN105597769A (zh) * | 2016-01-08 | 2016-05-25 | 昆明理工大学 | 一种片状形貌纳米复合金属氧化物催化剂CeO2-Co3O4的制备方法 |
CN105854887A (zh) * | 2016-03-25 | 2016-08-17 | 武汉工程大学 | 一种钴铈双金属氧化物纳米球及其制备方法 |
CN107362804A (zh) * | 2017-07-14 | 2017-11-21 | 重庆交通大学 | 花状Co3O4‑CeO2复合氧化物催化剂的制备方法 |
CN109289858A (zh) * | 2018-10-26 | 2019-02-01 | 天津大学 | 一种氧化钴二氧化铈复合氧化物、其制备方法及用途 |
CN110124713A (zh) * | 2019-04-24 | 2019-08-16 | 南京师范大学 | 一种氮掺杂碳纳米纤维负载空心结构Co3O4/CeO2纳米粒子材料的制备方法和应用 |
CN110665519A (zh) * | 2019-09-25 | 2020-01-10 | 盐城师范学院 | 一种可见光驱动下活化过一硫酸氢钾复合盐的CeO2/Co3O4光催化剂的制备方法 |
CN111195518A (zh) * | 2020-01-10 | 2020-05-26 | 兰州大学 | NiO/Co3O4的制备方法及其应用 |
Non-Patent Citations (3)
Title |
---|
CHUN-HUI SHEN ET AL.: ""Visible-light-driven activation of peroxymonosulfate for accelerating ciprofloxacin degradation using CeO2/Co3O4 p-n heterojunction photocatalysts"", 《CHEMICAL ENGINEERING JOURNAL》 * |
JIAN MEI ET AL.: ""Morphology-dependent properties of Co3O4/CeO2 catalysts for low temperature dibromomethane (CH2Br2) oxidation"", 《CHEMICAL ENGINEERING JOURNAL》 * |
TONGFEI LI ET AL.: ""Hollow Co3O4/CeO2 Heterostructures in Situ Embedded in N‑Doped Carbon Nanofibers Enable Outstanding Oxygen Evolution"", 《ACS SUSTAINABLE CHEMISTRY & ENGINEERING》 * |
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