Unraveling template-free fabrication of carbon nitride nanorods codoped with Pt and Pd for efficient electrochemical and photoelectrochemical carbon monoxide oxidation at room temperature

Nanoscale ◽  
2019 ◽  
Vol 11 (24) ◽  
pp. 11755-11764 ◽  
Author(s):  
Kamel Eid ◽  
Mostafa H. Sliem ◽  
Aboubakr M. Abdullah

PtPd/CN nanorods synthesized via the rolling up mechanism enhanced the electrochemical and photoelectrochemical CO oxidation activity substantially at room temperature.

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Mark A. Newton ◽  
Davide Ferri ◽  
Grigory Smolentsev ◽  
Valentina Marchionni ◽  
Maarten Nachtegaal

ACS Catalysis ◽  
2014 ◽  
Vol 4 (10) ◽  
pp. 3481-3489 ◽  
Author(s):  
Shuo Zhang ◽  
Xiao-Song Li ◽  
Bingbing Chen ◽  
Xiaobing Zhu ◽  
Chuan Shi ◽  
...  

Catalysts ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 411 ◽  
Author(s):  
Kamel Eid ◽  
Yahia Ahmad ◽  
Assem Mohamed ◽  
Anas Elsafy ◽  
Siham Al-Qaradawi

Developing efficient catalyst for CO oxidation at low-temperature is crucial in various industrial and environmental remediation applications. Herein, we present a versatile approach for controlled synthesis of carbon nitride nanowires (CN NWs) doped with palladium and copper (Pd/Cu/CN NWs) for CO oxidation reactions. This is based on the polymerization of melamine by nitric acid in the presence of metal-precursors followed by annealing under nitrogen. This intriguingly drove the formation of well-defined, one-dimensional nanowires architecture with a high surface area (120 m2 g−1) and doped atomically with Pd and Cu. The newly-designed Pd/Cu/CN NWs fully converted CO to CO2 at 149 °C, that was substantially more active than that of Pd/CN NWs (283 °C) and Cu/CN NWs (329 °C). Moreover, Pd/Cu/CN NWs fully reserved their initial CO oxidation activity after 20 h. This is mainly attributed to the combination between the unique catalytic properties of Pd/Cu and outstanding physicochemical properties of CN NWs, which tune the adsorption energies of CO reactant and reaction product during the CO oxidation reaction. The as-developed method may open new frontiers on using CN NWs supported various noble metals for CO oxidation reaction.


RSC Advances ◽  
2016 ◽  
Vol 6 (79) ◽  
pp. 75126-75132 ◽  
Author(s):  
Weining Zhang ◽  
Qingguo Zhao ◽  
Xiaohong Wang ◽  
Xiaoxia Yan ◽  
Sheng Han ◽  
...  

Au@CuxO core–shell nanoparticles and Au@CuxO/Al2O3 used for CO oxidation at low temperature are prepared. CO conversion on Au@CuxO/Al2O3 can reach to 38% at room temperature and the catalytic activity remains unchanged after 108 hours reaction.


2021 ◽  
Author(s):  
Rahul More ◽  
Pavan More

Abstract The series of bimetallic Co and Mn supported on hydroxyapatite catalyst were prepared by successive deposition method and examined for CO oxidation. The CO oxidation activity was compared with monometallic Mn/HAp and Co/HAp. The catalysts are characterized in detail and correlated to the oxidation activity. The XRD, XPS and TPR characterization showed the presence of more facile Co2+, Mn3+ and adsorbed oxygen due to the interaction between Mn and Co. The 0.4 mol Mn and 0.1 mol Mn deposited on HAp showed formation of maximum active species. The maximum CoO species was observed over bimetallic catalyst compared to the monometallic catalyst. These active lower the activation energy require for CO and oxygen. These species were responsible for the oxidation of CO at lower temperature compared to the remaining catalyst.


ACS Catalysis ◽  
2012 ◽  
Vol 2 (6) ◽  
pp. 1138-1146 ◽  
Author(s):  
Joseph A. Singh ◽  
Steven H. Overbury ◽  
Nancy J. Dudney ◽  
Meijun Li ◽  
Gabriel M. Veith

2011 ◽  
Vol 47 (39) ◽  
pp. 11032 ◽  
Author(s):  
Nobuhito Imanaka ◽  
Toshiyuki Masui ◽  
Hayato Imadzu ◽  
Keisuke Yasuda

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