Synthesis of Ternary Metal Nitride Nanoparticles Using Mesoporous Carbon Nitride as Reactive Template
Synthesis of Ternary Metal Nitride Nanoparticles Using Mesoporous Carbon Nitride as Reactive Template
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DOI：
10.1021/nn800503a
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发表时间：
2008-12-01
期刊：
影响因子：
17.1
通讯作者：
Thomas, Arne
中科院分区：
文献类型：
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作者：
Fischer, Anna;Mueller, Jens Oliver;Thomas, Arne
以介孔石墨氮化碳为纳米反应器和反应物合成了三元金属氮化物纳米颗粒。通过将两种金属前体的混合物渗透到介孔氮化碳中，孔首先充当纳米限制，产生无定形混合氧化物纳米颗粒。在加热和分解期间，氮化碳第二充当反应物，或者更精确地，充当氮源，其将预形成的混合氧化物纳米颗粒转化成相应的氮化物（反应性模板化）。采用这种方法，合成了由氮化铝镓（Al-Ga-N）和氮化钒钛（Ti-V-N）组成的直径小于10 nm的三元金属氮化物颗粒。由于氮化碳基质的限制效应，所得金属氮化物的组成可以通过改变前体溶液的浓度来容易地调节。因此，可以生产具有连续可调金属组成的三元金属氮化物纳米颗粒。
Mesoporous graphitic carbon nitride was used as both a nanoreactor and a reactant for the synthesis of ternary metal nitride nanoparticles. By infiltration of a mixture of two metal precursors into mesoporous carbon nitride, the pores act first as a nanoconfinement, generating amorphous mixed oxide nanoparticles. During heating and decomposition, the carbon nitride second acts as reactant or, more precisely, as a nitrogen source, which converts the preformed mixed oxide nanoparticles into the corresponding nitride (reactive templating). Using this approach, ternary metal nitride particles with diameters smaller 10 nm composed of aluminum gallium nitride (Al-Ga-N) and titanium vanadium nitride (Ti-V-N) were synthesized. Due to the confinement effect of the carbon nitride matrix, the composition of the resulting metal nitride can be easily adjusted by changing the concentration of the preceding precursor solution. Thus, ternary metal nitride nanoparticles with continuously adjustable metal composition can be produced.