Novel hollow microsphere with porous carbon shell embedded with Cu/Co bimetal nanoparticles: Facile large-scale preparation and catalytic hydrogenation performance

双金属 材料科学 微球 催化作用 纳米颗粒 多孔性 化学工程 壳体(结构) 碳纤维 纳米技术 复合材料 有机化学 复合数 化学 工程类
作者
Gaiping Du,Ran Liu,Qianqian Jia,Gang Han,Zhenguo An,Jingjie Zhang
出处
期刊:Journal of Materials Science & Technology [Elsevier BV]
卷期号:122: 44-53 被引量:8
标识
DOI:10.1016/j.jmst.2021.11.080
摘要

• Simultaneous formation between carbon carrier and Cu/Co nanocatalysts is realized. • The Cu/Co bimetal NPs display temperature dependent interlocking microstructures. • The carbon supported non-noble catalysts show excellent catalytic activity of 4-NP. • The route of spray drying-calcination holds great potential for mass-production. • The obtained supported non-noble catalysts possess magnetic separation property. Non-noble bimetals have attracted extensive attention for their natural aboundance and low cost, but it remains a big challenge to design and synthesize novel supported non-noble bimetal nanocatalyst in a controllable and high-efficient manner. Herein, a novel hollow spherical supported non-noble bimetal nanocatalyst with porous carbon shell as the continuous matrix and Cu/Co bimetal nanoparticles as the dispersion phase is successfully fabricated by a convenient strategy involving spray drying and subsequent heat treatment. The morphology and microstructure depend catalyst activity of the hollow spherical supported catalyst has been studied systematically. It is found that the heating temperature plays a critical role in determining the microstructure and catalytic performance of the products. With an optimal heating temperature of 600 °C, the corresponding product exhibits the highest normalized reaction rate constant ( k n ) of 25.4 s −1 g −1 for catalytic reduction of 4-notrophenol, which can be attributed to the suitable synergism of the well-defined bimetal structure, combined effect of the two metallic phases and the metal-support interaction. This work provides an additional strategy for the simultaneous formation of both the support and the active loading phase of supported non-noble bimetal nanocatalyst, and may shed some light on the high-efficiency synthesis of other supported heterostructure with various compositions and properties.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
愉快幻悲完成签到,获得积分10
2秒前
ecoli发布了新的文献求助10
2秒前
周奕迅发布了新的文献求助10
3秒前
小宝爸爸发布了新的文献求助10
4秒前
yang完成签到,获得积分10
5秒前
慕青应助灰底爆米花采纳,获得10
5秒前
852应助nicewink采纳,获得10
6秒前
dengdengdeng完成签到,获得积分10
7秒前
叮当发布了新的文献求助10
8秒前
bkagyin应助keyanrubbish采纳,获得30
10秒前
xtt完成签到,获得积分10
12秒前
Aimee完成签到 ,获得积分10
14秒前
14秒前
小马甲应助Arui采纳,获得10
14秒前
大个应助hg08采纳,获得10
16秒前
17秒前
DELI完成签到 ,获得积分10
18秒前
隐形曼青应助科研通管家采纳,获得10
19秒前
酷波er应助科研通管家采纳,获得10
19秒前
YamDaamCaa应助科研通管家采纳,获得30
19秒前
ED应助科研通管家采纳,获得10
19秒前
大模型应助科研通管家采纳,获得10
19秒前
科研通AI2S应助科研通管家采纳,获得10
19秒前
搜集达人应助科研通管家采纳,获得10
19秒前
kecheng应助科研通管家采纳,获得10
19秒前
YamDaamCaa应助科研通管家采纳,获得30
19秒前
19秒前
19秒前
19秒前
orixero应助sss采纳,获得10
21秒前
21秒前
周奕迅完成签到,获得积分20
23秒前
mashichuang发布了新的文献求助10
23秒前
24秒前
keyanrubbish发布了新的文献求助30
25秒前
27秒前
Qenyo发布了新的文献求助10
30秒前
GXY完成签到,获得积分10
31秒前
Arui发布了新的文献求助10
33秒前
情怀应助niania采纳,获得10
34秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Indomethacinのヒトにおける経皮吸収 400
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 370
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
Aktuelle Entwicklungen in der linguistischen Forschung 300
Current Perspectives on Generative SLA - Processing, Influence, and Interfaces 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3991794
求助须知:如何正确求助?哪些是违规求助? 3532981
关于积分的说明 11260197
捐赠科研通 3272241
什么是DOI,文献DOI怎么找? 1805664
邀请新用户注册赠送积分活动 882609
科研通“疑难数据库(出版商)”最低求助积分说明 809405