A high-performance Pt–Co bimetallic catalyst with polyethyleneimine decorated graphene oxide as support for hydrolysis of ammonia borane

RSC Advances ◽  
2014 ◽  
Vol 4 (77) ◽  
pp. 41152-41158 ◽  
Author(s):  
Mengxiong Li ◽  
Jiantong Hu ◽  
Zhongxin Chen ◽  
Hongbin Lu

PEI–GO/Pt0.17Co0.83was synthesized and showed the best catalytic activity of the reported Pt-based bimetallic catalysts for the hydrolysis of ammonia borane.

2017 ◽  
Vol 1 (10) ◽  
pp. 2128-2133 ◽  
Author(s):  
Wanyue Ye ◽  
Yuzhen Ge ◽  
Zhanming Gao ◽  
Rongwen Lu ◽  
Shufen Zhang

Enhanced hydrogen production activity of Pt nanoparticles from hydrolysis of ammonia–borane by facile surface coating of nanosized graphene oxide.


2017 ◽  
Vol 53 (4) ◽  
pp. 705-708 ◽  
Author(s):  
Zi-Cheng Fu ◽  
Yong Xu ◽  
Sharon Lai-Fung Chan ◽  
Wei-Wei Wang ◽  
Fang Li ◽  
...  

An anion-assisted hydrolytic H2-releasing ultra-high performance system involving ammonia borane and a CoP nanoparticle catalyst has been established under ambient conditions.


2018 ◽  
Vol 42 (14) ◽  
pp. 12222-12233 ◽  
Author(s):  
Mir Ghasem Hosseini ◽  
Raana Mahmoodi ◽  
Mehdi Abdolmaleki

Ni@Pd/rGO shows excellent catalytic activity and power density toward hydrazine oxidation in comparison with Ni@Pt/rGO and Ni@Ru/rGO.


2015 ◽  
Vol 5 (1) ◽  
pp. 525-530 ◽  
Author(s):  
Jun Li ◽  
Qi-Long Zhu ◽  
Qiang Xu

Non-noble bimetallic CuCo alloy nanoparticles were successfully encapsulated in the pores of MIL-101 without aggregation on the external surfaces of the host framework, which exhibit excellent catalytic activity for hydrolytic dehydrogenation of ammonia borane.


2017 ◽  
Vol 7 (21) ◽  
pp. 5135-5142 ◽  
Author(s):  
Binhua Zhao ◽  
Kun Feng ◽  
Yun Wang ◽  
Xiaoxin Lv ◽  
Hechuang Zheng ◽  
...  

The Pt3Ni7O–NGO sample shows a high TOF value in the hydrolysis of ammonia borane due to a synergetic effect.


NANO ◽  
2019 ◽  
Vol 14 (11) ◽  
pp. 1950137 ◽  
Author(s):  
Xin Zhao ◽  
Dandan Ke ◽  
Shumin Han ◽  
Yuan Li ◽  
Hongming Zhang ◽  
...  

By adding surfactant polyvinyl alcohol (PVA) and controlling the preparation process, we successfully synthesized Co–Mo catalysts. For further improving the dispersion, reduced graphene oxide sheets as catalyst carrier were introduced to synthesize Co–Mo@rGO composite catalyst as highly efficient catalysts for hydrolytic dehydrogenation of ammonia borane. The introduction of Mo for preparing Co–Mo@rGO catalyst helped to form alloy catalyst with better structure, better dispersity and smaller particle size. When the molar ratio of Co and Mo was 0.75:0.25, the bimetallic composite catalyst exhibited superior activity with TOF value of 16.29[Formula: see text]mol[Formula: see text]. The activation energy of the reaction was calculated to be 43.72[Formula: see text]kJ[Formula: see text][Formula: see text]. Furthermore, the reusability tests reveal that waxberry-like Co–Mo still show good catalytic activity with 80.3% of their initial activity in five successive runs. The enhanced catalytic activities were due to the synergistic interaction between graphene sheets and waxberry-like Co–Mo NPs, which was beneficial to improve the dispersion and stability of bimetallic NPs. Also, ligand effects on the formation of waxberry-like structure and amorphous state further promoted the catalytic activity.


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