A Cu and Fe dual-atom nanozyme mimicking cytochrome c oxidase to boost the oxygen reduction reaction

2020 ◽  
Vol 8 (33) ◽  
pp. 16994-17001 ◽  
Author(s):  
Cheng Du ◽  
Yijing Gao ◽  
Hengquan Chen ◽  
Ping Li ◽  
Shuyun Zhu ◽  
...  

Through mimicking cytochrome c oxidase, the fabricated Cu and Fe dual-atom nanozyme exhibits enhanced catalytic performance for the oxygen reduction reaction.

2013 ◽  
Vol 53 (supplement1-2) ◽  
pp. S227
Author(s):  
Tatsuhito Nishiguchi ◽  
Masahide Hikita ◽  
Kyoko Shinzawa-Itoh ◽  
Shinya Yoshikawa ◽  
Satoru Nakashima ◽  
...  

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 955 ◽  
Author(s):  
Jing Liu ◽  
Jiao Yin ◽  
Bo Feng ◽  
Tao Xu ◽  
Fu Wang

The Pt particles within diameters of 1–3 nm known as Pt nanoclusters (NCs) are widely considered to be satisfactory oxygen reduction reaction (ORR) catalysts due to higher electrocatalytic performance and cost effectiveness. However, the utilization of such smaller Pt NCs is always limited by the synthesis strategies, stability and methanol tolerance of Pt. Herein, unprotected Pt NCs (~2.2 nm) dispersed on carbon nanotubes (CNTs) were prepared via a modified top-down approach using liquid Li as a solvent to break down the bulk Pt. Compared with the commercial Pt/C, the resultant Pt NCs/CNTs catalyst (Pt loading: 10 wt.%) exhibited more desirable ORR catalytic performance in 0.1 M HClO4. The specific activity (SA) and mass activity (MA) at 0.9 V for ORR over Pt NCs/CNTs were 2.5 and 3.2 times higher than those over the commercial Pt/C (Pt loading: 20 wt.%). Meanwhile, the Pt NCs/CNTs catalyst demonstrated more satisfactory stability and methanol tolerance. Compared with the obvious loss (~69%) of commercial Pt/C, only a slight current decrease (~10%) was observed for Pt NCs/CNTs after the chronoamperometric measurement for 2 × 104 s. Hence, the as-prepared Pt NCs/CNTs material displays great potential as a practical ORR catalyst.


ACS Catalysis ◽  
2013 ◽  
Vol 3 (6) ◽  
pp. 1263-1271 ◽  
Author(s):  
Yuanyuan Jiang ◽  
Yizhong Lu ◽  
Xiangyu Lv ◽  
Dongxue Han ◽  
Qixian Zhang ◽  
...  

2019 ◽  
Vol 7 (27) ◽  
pp. 16508-16515 ◽  
Author(s):  
Guanying Ye ◽  
Qian He ◽  
Suqin Liu ◽  
Kuangmin Zhao ◽  
Yuke Su ◽  
...  

Atomically dispersed iron doped-MOF-derived carbon with high iron loading and nitrogen content for the oxygen reduction reaction via a cage-confinement strategy shows excellent catalytic performance.


Nano Energy ◽  
2016 ◽  
Vol 20 ◽  
pp. 134-143 ◽  
Author(s):  
Li An ◽  
Huijun Yan ◽  
Xin Chen ◽  
Biao Li ◽  
Zhonghong Xia ◽  
...  

ChemCatChem ◽  
2015 ◽  
Vol 7 (18) ◽  
pp. 2937-2944 ◽  
Author(s):  
Shiping Wang ◽  
Minglei Zhu ◽  
Xiaobing Bao ◽  
Jing Wang ◽  
Chunhong Chen ◽  
...  

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