首次通过化学还原法制备了纳米多孔Co-Ni-B/Cu-BTC复合材料,在 Co-Ni-B合金中掺入金属框架化合物Cu-BTC后有效地提高了复合材料的比表面积,其形貌由团聚的纳米粒子变成纳米多孔结构,复合材料的催化性能也得到显著的提高,用于催化氨硼烷的水解,表现出良好的催化活性.在30℃时,催化水解氨硼烷制氢的反应速率到达2670 mL/(min.g),其水解反应的活化能为22．4 kJ/mol,与文献相比,表现出较大的优势.所制备的复合材料还具有良好的化学稳定性,表现出重要的应用前景.
In this paper,nanoporous Co-Ni-B/Cu-BTC catalyst has been firstly prepared by in-situ chemical re-duction under sonication.After the introduction of Cu-BTC particles in Co-Ni-B alloy,the specific surface area of the composite was substantially improved.The morphology was also changed from aggregated nanoparticles to nanoporous structure.Furthermore,the catalytic activity of composite was enhanced greatly for the hydroly-sis of NH3BH3.A high rate of hydrogen generation has been monitored at 2 670 mL/(min.g)at 30 ℃ in NH3 BH3 solution.The activation energy of the hydrolysis 22.4 kJ/mol is obtained.The preparation of compos-ite has good chemical stability and has also been explored.
参考文献
| [1] | S. Basu;A. Brockman;P. Gagare;Y. Zheng;P.V. Ramachandran;W.N. Delgass;J.P. Gore.Chemical Kinetics Of Ru-catalyzed Ammonia Borane Hydrolysis[J].Journal of Power Sources,20091(1):238-243. |
| [2] | Tetsuo Umegaki;Jun-Min Yan;Xin-Bo Zhang;Hiroshi Shioyama;Nobuhiro Kuriyama;Qiang Xu.Hollow Ni-SiO_2 nanosphere-catalyzed hydrolytic dehydrogenation of ammonia borane for chemical hydrogen storage[J].Journal of Power Sources,20092(2):209-216. |
| [3] | U.B. Demirci;S. Bernard;R. Chiriac;F. Toche;P. Miele.Hydrogen release by thermolysis of ammonia borane NH_3BH_3 and then hydrolysis of its by-product[BNH_x][J].Journal of Power Sources,20111(1):279-286. |
| [4] | N. Patel;R. Fernandes;R. Edla.Superior hydrogen production rate by catalytic hydrolysis of ammonia borane using Co-B nanoparticles supported over mesoporous silica particles[J].Catalysis Communications,2012:39-42. |
| [5] | Sanjay Kumar Singh;Yasuo lizuka;Qiang Xu.Nickel-palladium nanoparticle catalyzed hydrogen generation from hydrous hydrazine for chemical hydrogen storage[J].International journal of hydrogen energy,201118(18):11794-11801. |
| [6] | Keun Woo Cho;Hyuk Sang Kwon.Effects of electrodeposited Co and Co-P catalysts on the hydrogen generation properties from hydrolysis of alkaline sodium borohydride solution[J].Catalysis Today,20073/4(3/4):298-304. |
| [7] | Zukal, Arnost;Opanasenko, Maksym;Rubes, Miroslav;Nachtigall, Petr;Jagiello, Jacek.Adsorption of pentane isomers on metal-organic frameworks Cu-BTC and Fe-BTC[J].Catalysis Today,2015:69-75. |
| [8] | Sun, Zhiguo;Li, Gang;Zhang, Yue;Liu, Hai-ou;Gao, Xionghou.Ag-Cu-BTC prepared by postsynthetic exchange as effective catalyst for selective oxidation of toluene to benzaldehyde[J].Catalysis Communications,2015:92-96. |
| [9] | Pradip Chowdhury;Chaitanya Bikkina;Dirk Meister.Comparison of adsorption isotherms on Cu-BTC metal organic frameworks synthesized from different routes[J].Microporous and Mesoporous Materials,20091/2(1/2):406-413. |
| [10] | Xiang, Cuili;Cheng, Jun;She, Zhe;Zou, Yongjin;Chu, Hailiang;Qiu, Shujun;Zhang, Huanzhi;Sun, Lixian;Xu, Fen.Fabrication and characterization of a novel nanoporous Co-Ni-W-B catalyst for rapid hydrogen generation[J].RSC Advances,20151(1):163-166. |
| [11] | Patel, Nainesh;Miotello, Antonio.Progress in Co-B related catalyst for hydrogen production by hydrolysis of boron-hydrides: A review and the perspectives to substitute noble metals[J].International journal of hydrogen energy,20153(3):1429-1464. |
| [12] | Pt_xNi_(1-x) nanoparticles as catalysts for hydrogen generation from hydrolysis of ammonia borane[J].International journal of hydrogen energy,200921(21):8785. |
| [13] | Hydrogen generation from hydrolysis of NH_3BH_3 by an electroplated Co-P catalyst[J].International journal of hydrogen energy,20101(1):181. |
| [14] | N. Patel;R. Femandes;S. Gupta.Co-B catalyst supported over mesoporous silica for hydrogen production by catalytic hydrolysis of Ammonia Borane: A study on influence of pore structure[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2013:125-132. |
| [15] | Jingang Yang;Fangyi Cheng;Jing Liang;Jun Chen.Hydrogen generation by hydrolysis of ammonia borane with a nanoporous cobalt-tungsten-boron-phosphorus catalyst supported on Ni foam[J].International journal of hydrogen energy,20112(2):1411-1417. |
| [16] | Jing Du;Fangyi Cheng;Meng Si;Jing Liang;Zhanliang Tao;Jun Chen.Nanoporous Ni-based catalysts for hydrogen generation from hydrolysis of ammonia borane[J].International journal of hydrogen energy,201314(14):5768-5774. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%