本文選題：銅 + 氨硼烷��； 參考：《物理化學(xué)學(xué)報(bào)》2017年05期

【摘要】：在無表面活性劑和載體的情況下,使用硼氫化鈉作為還原劑,簡單快速地合成了Cu Mo非貴金屬納米粒子。采用X射線粉末衍射(XRD)、透射電子顯微鏡(TEM)、高分辨透射電子顯微鏡(HRTEM)、選區(qū)電子衍射(SAED)、電感耦合等離子體原子發(fā)射光譜(ICP-AES)、光電子能譜(XPS)和比表面積分析(BET)等方法詳細(xì)地表征了所合成的CuMo納米粒子,并在室溫下將其用于催化氨硼烷水解產(chǎn)氫。所合成的Cu0.9Mo0.1納米粒子對(duì)于氨硼烷水解制氫表現(xiàn)出優(yōu)異的催化性能,在室溫下其轉(zhuǎn)化頻率(TOF)達(dá)到14.9 min~(-1),在已報(bào)道的Cu催化劑中處于相對(duì)較高的值。這種簡單的合成方法不僅僅局限于合成CuMo納米粒子,還可以擴(kuò)展到合成CuW(3.6 min~(-1))、CuCr(2 min~(-1))、NiMo(55.6 min~(-1))和CoMo(21.7 min~(-1))納米粒子,它提供了一種普適的方法合成Cu-M(M=Mo,W,Cr)和TM-Mo(TM=Cu,Ni,Co)納米粒子作為一系列新型催化劑用于氨硼烷水解。雙金屬納米粒子增強(qiáng)的催化活性歸因于應(yīng)力和配體效應(yīng)誘導(dǎo)的Cu-M納米粒子的協(xié)同促進(jìn)效果。
[Abstract]:Using sodium borohydride as reducing agent, Cu-Mo non-noble metal nanoparticles were synthesized in the absence of surfactant and carrier. The methods of X-ray powder diffraction (XRDX), transmission electron microscope (TEM), high resolution transmission electron microscope (HRTEM), selected area electron diffraction (SAEDN), ICP-AESU, photoelectron spectroscopy (XPS) and specific surface area analysis (BET) were used in detail. To characterize the synthesized CuMo nanoparticles, It was used to catalyze the hydrolysis of aminoborane to produce hydrogen at room temperature. The synthesized Cu0.9Mo0.1 nanoparticles exhibited excellent catalytic performance for the hydrolysis of aminoborane to produce hydrogen. The conversion frequency of the synthesized nanoparticles was 14.9 min ~ (-1) ~ (-1) at room temperature, which was relatively high in the reported Cu catalyst. This simple synthesis method is not only limited to the synthesis of CuMo nanoparticles, but also can be extended to the synthesis of CuW(3.6 CuMo nanocrystalline particles. It provides a general method for the synthesis of Cu-MMoMMOWNCOO) and TM-Mo-TMN CuNiCo) as a series of novel catalysts for the hydrolysis of ammonioborane. The enhanced catalytic activity of bimetallic nanoparticles is attributed to the synergistic effect of Cu-M nanoparticles induced by stress and ligand effect.
【作者單位】： 江西師范大學(xué)化學(xué)化工學(xué)院無機(jī)膜材料工程技術(shù)研究中心;南昌航空大學(xué)航天制造工程學(xué)院;
【基金】：supported by the National Natural Science Foundation of China(21463012) Young Scientist Foundation of Jiangxi Province,China(20133BCB23011) “Gan-po talent 555”Project of Jiangxi Province,China~~
【分類號(hào)】：O643.36;TQ116.2
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本文編號(hào)：1827311