多金核二氧化铈空心球用于硝基苯酚催化加氢

引用本文: 赵昆, 齐健, 赵慎龙, 唐红杰, 尹华杰, 宗玲博, 常琳, 高燕, 于然波, 唐智勇. 多金核二氧化铈空心球用于硝基苯酚催化加氢[J]. 催化学报, 2015, 36(3): 261-267. doi: 10.1016/S1872-2067(14)60273-4 shu

Citation: Multiple Au cores in CeO₂ hollow spheres for the superior catalytic reduction of p-nitrophenol[J]. Chinese Journal of Catalysis, 2015, 36(3): 261-267. doi: 10.1016/S1872-2067(14)60273-4 shu

多金核二氧化铈空心球用于硝基苯酚催化加氢

赵昆 ^{a,b,
,} ,
齐健 ^{b,c,
,} ,
赵慎龙 ^{b,
,} ,
唐红杰 ^{c,
,} ,
尹华杰 ^{b,
,} ,
宗玲博 ^{a,
,} ,
常琳 ^{b,
,} ,
高燕 ^{b,
,} ,
于然波 ^{a,
,} ,
唐智勇 ^{b,
,}

通讯作者: 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇

基金项目:
国家重点基础研究发展计划(2014CB931801, 唐智勇) (2014CB931801, 唐智勇)

国家自然科学基金(51272047, 高燕

20973047, 91027011, 唐智勇

51072020, 21271021, 于然波)

多相复杂系统国家重点实验室(MPCS-2014-A-04, 齐健). (MPCS-2014-A-04, 齐健)

摘要: 催化剂的微观结构在催化还原反应、有机物氧化反应及有机物转化反应中起着关键作用. 本文利用无模板方法合成了多金核中空二氧化铈微球催化剂. 将制备好的二氧化铈中空微球浸渍到一定浓度的氯金酸溶液中, 然后多次洗涤除去表面吸附的氯金酸离子, 最后通过硼氢化钠还原制成中空氧化铈微球包覆的多金核的核壳结构催化剂. 将该核壳结构材料用于硝基苯酚加氢反应与金纳米粒子及氧化铈微球相比, 多金核中空二氧化铈核壳结构表现出优越的活性和稳定性. 通过这种浸渍洗涤再还原的简单方法合成的多金核二氧化铈催化剂有望应用于生物医药和能源环境等领域.

关键词:

English

Multiple Au cores in CeO₂ hollow spheres for the superior catalytic reduction of p-nitrophenol

Corresponding author: 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇; 高燕, 于然波, 唐智勇

Received Date: 14 November 2014
Available Online: 20 March 2015
Fund Project:
国家重点基础研究发展计划(2014CB931801, 唐智勇)

国家自然科学基金(51272047, 高燕

20973047, 91027011, 唐智勇

51072020, 21271021, 于然波)

多相复杂系统国家重点实验室(MPCS-2014-A-04, 齐健).

Abstract: In many catalytic systems the structure of the catalyst plays a crucial role in the reaction especially for catalytic reduction, organic pollutant oxidation and other organic transfor-mations. Herein, we report a template-free approach to the synthesis of multiple Au cores in CeO₂ hollow spheres (MACCHS). This material was fabricated by impregnating CeO₂ hollow spheres with a HAuCl₄ aqueous solution. NaBH₄ was then used to reduce HAuCl₄ to Au nano-particles to form multiple Au cores in the CeO₂ hollow spheres. We used MACCHS as a catalyst for p-nitrophenol reduction and achieved excellent activity. The catalyst showed enhanced stability toward p-nitrophenol reduction compared with bare Au nanoparticles and CeO₂ hollow spheres. This simple method to achieve multi-core-in-shell hollow structures will likely have applications in various biological, medical and energy related fields.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

多金核二氧化铈空心球用于硝基苯酚催化加氢

English

Multiple Au cores in CeO₂ hollow spheres for the superior catalytic reduction of p-nitrophenol

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

多金核二氧化铈空心球用于硝基苯酚催化加氢

English

Multiple Au cores in CeO2 hollow spheres for the superior catalytic reduction of p-nitrophenol

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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