A Ni2P nanosheet array integrated on 3D Ni foam: an efficient, robust and reusable monolithic catalyst for the hydrolytic dehydrogenation of ammonia borane toward on-demand hydrogen generation

2016 ◽  
Vol 4 (32) ◽  
pp. 12407-12410 ◽  
Author(s):  
Chun Tang ◽  
Lisi Xie ◽  
Kunyang Wang ◽  
Gu Du ◽  
Abdullah M. Asiri ◽  
...  

A Ni2P nanosheet array integrated on Ni foam performs as a catalyst for on-demand hydrogen production from ammonia borane with an initial turnover frequency of 42.3 mol(H2) mol(Ni2P)−1 min−1 and an activation energy of 44.0 kJ mol−1.

2017 ◽  
Vol 4 (4) ◽  
pp. 659-662 ◽  
Author(s):  
Chun Tang ◽  
Fengli Qu ◽  
Abdullah M. Asiri ◽  
Yonglan Luo ◽  
Xuping Sun

A CoP nanoarray behaves as a robust non-noble-metal recyclable catalyst for effective on-demand hydrogen generation from ammonia borane hydrolysis, with an initial turnover frequency and activation energy of 42.8 molH2 molCoP−1 min−1 and 34.1 kJ mol−1, respectively.


2016 ◽  
Vol 4 (34) ◽  
pp. 13053-13057 ◽  
Author(s):  
Tingting Liu ◽  
Kunyang Wang ◽  
Gu Du ◽  
Abdullah M. Asiri ◽  
Xuping Sun

CoP nanosheet array integrated Ti mesh is an efficient monolithic catalyst for NaBH4 hydrolysis toward on-demand hydrogen generation with good reusability.


2018 ◽  
Vol 43 (23) ◽  
pp. 10728-10733 ◽  
Author(s):  
Hatice Begüm Murathan ◽  
Gülay Özkan ◽  
Meryem Sena Akkuş ◽  
Derya Öncel Özgür ◽  
Göksel Özkan

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1037
Author(s):  
Zhaoyu Wen ◽  
Jie Wu ◽  
Guangyin Fan

Hydrogen generation through ammonia–borane (AB) hydrolysis has been regarded as one of the most promising pathways to tap renewable green energy. The design and synthesis of highly effective catalysts toward hydrogen production from aqueous AB is of paramount significance. Here, the facile synthesis of Rh nanoparticles (NPs) immobilized on nanodiamond (nano-DA) and concomitant AB hydrolysis to produce hydrogen was successfully achieved. The in situ generated Rh/nano-DA exhibited excellent catalytic activity toward AB hydrolysis, with a high turnover frequency (TOF) value of 729.4 min−1 at 25 °C and a low activation energy of 25.6 kJ mol−1. Moreover, the catalyst could be reused four times. The unique properties of DA with abundant oxygen-containing groups enable the homogeneous distribution of small and surface-clean Rh NPs on the nano-DA surface, which can supply abundant accessible active sites for hydrogen evolution from AB hydrolysis. This study demonstrated that nano-DA can be applied as an ideal matrix to deposit efficient Rh nanocatalyst toward hydrogen evolution reaction.


Nanomaterials ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 21 ◽  
Author(s):  
Dongsheng Lu ◽  
Yufa Feng ◽  
Zitian Ding ◽  
Jinyun Liao ◽  
Xibin Zhang ◽  
...  

Production of hydrogen by catalytically hydrolyzing ammonia borane (AB) has attracted extensive attention in the field of catalysis and energy. However, it is still a challenge to develop a both inexpensive and active catalyst for AB hydrolysis. In this work, we designed a series of MoO3-doped MnCo2O4 (x) catalysts, which were fabricated by a hydrothermal process. The morphology, crystalline structure, and chemical components of the catalysts were systematically analyzed. The catalytic behavior of the catalyst in AB hydrolysis was investigated. Among these catalysts, MoO3-doped MnCo2O4 (0.10) microspheres composed of nanosheets exhibited the highest catalytic activity. The apparent activation energy is 34.24 kJ mol−1 and the corresponding turnover frequency is 26.4 molhydrogen min−1 molcat−1. Taking into consideration the low cost and high performance, the MoO3-doped MnCo2O4 (0.10) microspheres composed of nanosheets represent a promising catalyst to hydrolyze AB for hydrogen production.


RSC Advances ◽  
2016 ◽  
Vol 6 (104) ◽  
pp. 102035-102042 ◽  
Author(s):  
Joydev Manna ◽  
Serdar Akbayrak ◽  
Saim Özkar

Palladium(0) nanoparticles supported on polydopamine coated magnetic ferrite nanopowders are highly active and reusable catalyst in hydrogen generation from the hydrolysis of ammonia borane with a turnover frequency of 14.5 min−1 at 25.0 ± 0.1 °C.


2021 ◽  
Vol 8 ◽  
Author(s):  
Liling Li ◽  
Binshan Guo ◽  
Hang Li ◽  
Xibin Zhang ◽  
Yufa Feng ◽  
...  

Searching for inexpensive, durable, and active catalysts for the dehydrogenation of ammonia borane (AB) is an important subject in the field of hydrogen energy. In this study, we have fabricated NiCo nanorod arrays anchored on copper foam (CF) by a simple hydrothermal process. The catalytic performance of those array catalysts in AB hydrolysis was studied. It was found that NiCo-1/CF showed the highest catalytic activity with a hydrogen generation rate (HGR) of 1.03 Lhydrogen g−1 min−1, which was much higher than that for the unsupported NiCo-1 catalyst. It has been demonstrated that strong base can significantly enhance hydrogen production. After six catalytic cycles, the morphology, crystal structure, and catalytic activity were maintained, indicating that the NiCo-1/CF sample showed good reusability and high durability. Considering their low cost and high performance, the NiCo nanorod arrays anchored on CF can be a strong candidate catalyst for hydrogen generation for mobile hydrogen-oxygen fuel cells.


2016 ◽  
Vol 6 (11) ◽  
pp. 3893-3899 ◽  
Author(s):  
Jinyun Liao ◽  
Hao Li ◽  
Xibin Zhang ◽  
Kejun Feng ◽  
Yanling Yao

A Ti-supported NiCo2O4nanosheet array exhibited high catalytic performance in the hydrolysis of ammonia borane for hydrogen generation.


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