scholarly journals Cage-confinement of gas-phase ferrocene in zeolitic imidazolate frameworks to synthesize high-loading and atomically dispersed Fe–N codoped carbon for efficient oxygen reduction reaction

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.

2015 ◽  
Vol 3 (10) ◽  
pp. 5617-5627 ◽  
Author(s):  
Liang Chen ◽  
Chenyu Xu ◽  
Ran Du ◽  
Yueyuan Mao ◽  
Cheng Xue ◽  
...  

“Carbon nanoleaf” aerogels were developed, constructed with nitrogen-doped CNTs/GNRs, which show excellent catalytic performance in oxygen reduction reaction.


2017 ◽  
Vol 5 (4) ◽  
pp. 1526-1532 ◽  
Author(s):  
Zhengping Zhang ◽  
Xinjin Gao ◽  
Meiling Dou ◽  
Jing Ji ◽  
Feng Wang

Fe–Nxmoiety-modified nitrogen-doped hierarchically porous carbon, which is derived from porphyra, exhibits an excellent catalytic performance for oxygen reduction.


2018 ◽  
Vol 6 (5) ◽  
pp. 2212-2218 ◽  
Author(s):  
Yujin Ji ◽  
Huilong Dong ◽  
Tingjun Hou ◽  
Youyong Li

Monolayer g-GeC exhibits excellent catalytic performance for oxygen reduction reaction when used as a cathode catalyst in fuel cells and Li–O2 batteries.


RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 37965-37973 ◽  
Author(s):  
Xiaojuan Wang ◽  
Xinxin Fan ◽  
Honghong Lin ◽  
He Fu ◽  
Teng Wang ◽  
...  

Highly dispersed Co sites loaded on porous N-doped carbon are obtained by pyrolysis of ZnCo bimetallic ZIF with low Co percentage, which exhibits excellent catalytic performance for the electrocatalytic oxygen reduction reaction (ORR).


2016 ◽  
Vol 4 (15) ◽  
pp. 5678-5684 ◽  
Author(s):  
Jie Wang ◽  
Zexing Wu ◽  
Lili Han ◽  
Ruoqian Lin ◽  
Weiping Xiao ◽  
...  

Nitrogen and sulfur co-doping of graphene nanoribbon/CNT composites is obtained by using high temperature heat-treated thiourea with partially unzipped MWCNTs which exhibit excellent catalytic performance for the ORR with similar onset and half-wave potentials as Pt/C.


2019 ◽  
Vol 48 (9) ◽  
pp. 3045-3051 ◽  
Author(s):  
Tingting Zhang ◽  
Liang Zhang ◽  
Xianchun Liu ◽  
Zhongcheng Mu ◽  
Shuangxi Xing

N-Doped carbon/MnO2 nanocomposites generated via pyrolyzing polypyrrole/MnO2 show excellent catalytic performance towards the oxygen reduction reaction owing to the synergistic effect between N-doped carbon and MnO2.


2021 ◽  
Author(s):  
Jung Won Park ◽  
Byung Hoon Kim ◽  
Miyeon Kim ◽  
Junyoung Mun ◽  
Chang Yeon Lee

The development of non-platinum catalysts for the oxygen reduction reaction (ORR) in fuel cells is an urgent challenge given the limited reserves of platinum. The Fe–Nx/C electrocatalyst possessing isolated atomic...


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.


2019 ◽  
Vol 467-468 ◽  
pp. 1181-1186 ◽  
Author(s):  
Erwan Bertin ◽  
Adrian Münzer ◽  
Sven Reichenberger ◽  
Rene Streubel ◽  
Thomas Vinnay ◽  
...  

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