globalchange  > 气候变化事实与影响
DOI: 10.3390/catal9030298
WOS记录号: WOS:000465012800074
论文题名:
Synthesis and Evaluation of Copper-Supported Titanium Oxide Nanotubes as Electrocatalyst for the Electrochemical Reduction of Carbon Oxide to Organics
作者: Hossain, S. K. Safdar1; Saleem, Junaid2; Rahman, SleemUr3; Zaidi, Syed Mohammed Javaid4; McKay, Gordon2; Cheng, Chin Kui5
通讯作者: Hossain, S. K. Safdar
刊名: CATALYSTS
ISSN: 2073-4344
出版年: 2019
卷: 9, 期:3
语种: 英语
英文关键词: electrochemical reduction ; carbon dioxide ; titanium oxide nanotubes ; Cu nanoparticles
WOS关键词: CO2 REDUCTION ; TIO2 NANOTUBES ; HIGH-TEMPERATURE ; FORMIC-ACID ; FUEL-CELLS ; DIOXIDE ; ELECTRODE ; CATALYST ; ELECTROREDUCTION ; CU
WOS学科分类: Chemistry, Physical
WOS研究方向: Chemistry
英文摘要:

Carbon dioxide (CO2) is considered as the prime reason for the global warming effect and one of the useful ways to transform it into an array of valuable products is through electrochemical reduction of CO2 (ERC). This process requires an efficient electrocatalyst with high faradaic efficiency at low overpotential and enhanced reaction rate. Herein, we report an innovative way of reducing CO2 using copper-metal supported on titanium oxide nanotubes (TNT) electrocatalysts. The TNT support material was synthesized using alkaline hydrothermal process with Degussa (P-25) as a starting material. Copper nanoparticles were anchored on the TNT by homogeneous deposition-precipitation method (HDP) with urea as precipitating agent. The prepared catalysts were tested in a home-made H-cell with 0.5 M NaHCO3 aqueous solution in order to examine their activity for ERC and the optimum copper loading. Continuous gas-phase ERC was carried out in a solid polymer electrolyte (SPE) reactor. The 10% Cu/TNT catalysts were employed in the gas diffusion layer (GDL) on the cathode side with Pt-Ru/C on the anode side. Faradaic efficiencies for the three major products namely methanol, methane, and CO were found to be 4%, 3%, and 10%, respectively at -2.5 V with an overall current density of 120 mA/cm(2). The addition of TNT significantly increased the catalytic activity of electrocatalyst for ERC. It is mainly attributed to their better stability towards oxidation, increased CO2 adsorption capacity and stabilization of the reaction intermediate, layered titanates, and larger surface area (400 m(2)/g) as compared with other support materials. Considering the low cost of TNT, it is anticipated that TNT support electrocatalyst for ECR will gain popularity.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/130761
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: 1.King Faisal Univ, Dept Chem Engn, Coll Engn, Al Hufuf 31982, Saudi Arabia
2.Hamad Bin Khalifa Univ, Div Sustainable Dev, Coll Sci & Engn, Qatar Fdn, Doha, Qatar
3.King Fahd Univ Petr & Minerals, Chem Engn Dept, Dhahran 31261, Saudi Arabia
4.Qatar Univ, Ctr Adv Mat, Doha, Qatar
5.Univ Malaysia Pahang, Fac Chem & Nat Resources Engn, Kuantan 26300, Pahang, Malaysia

Recommended Citation:
Hossain, S. K. Safdar,Saleem, Junaid,Rahman, SleemUr,et al. Synthesis and Evaluation of Copper-Supported Titanium Oxide Nanotubes as Electrocatalyst for the Electrochemical Reduction of Carbon Oxide to Organics[J]. CATALYSTS,2019-01-01,9(3)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Hossain, S. K. Safdar]'s Articles
[Saleem, Junaid]'s Articles
[Rahman, SleemUr]'s Articles
百度学术
Similar articles in Baidu Scholar
[Hossain, S. K. Safdar]'s Articles
[Saleem, Junaid]'s Articles
[Rahman, SleemUr]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Hossain, S. K. Safdar]‘s Articles
[Saleem, Junaid]‘s Articles
[Rahman, SleemUr]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.