The pull of the MXene vortex

The pull of the MXene vortex
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MXene 涡旋的拉力

DOI:
10.1038/s41565-022-01238-6
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发表时间:
2022
影响因子:
38.3
通讯作者:
Moscatelli, A.
Moscatelli, A.
中科院分区:
材料科学1区
文献类型:
--
作者:
Moscatelli, A.

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术语MXenes(发音为“maxenes”)由Naguib等人于2011年首次引入,以表示从MAX本体相获得的剥离材料。MAX相(通式Mx+1AXn,n = 1-4)是三元碳化物或氮化物(X = C,N),其中M是前过渡金属,A是周期表第13或14族的元素。一种重要的MAX相材料是Ti 3AlC 2。为了制造相应的MXene,Naguib等人用HF处理它,从晶体结构中提取Al层,使Ti原子暴露于可能的化学官能化。在第一份报告中,官能化由F原子或OH基团(与水反应后)组成。然后,超声处理步骤导致剥离成相应的Ti 3C 2 MXene(通式Mx+1Xn)的纳米厚晶体层。
The term MXenes (pronounced ‘maxenes’) was first introduced in 2011 by Naguib et al. to indicate the exfoliated material obtained from a MAX bulk phase. A MAX phase (general formula Mx+1AXn, with n = 1–4) is a ternary carbide or nitride (X = C, N), with M an early transition metal and A an element from groups 13 or 14 of the periodic table. An important MAX phase material is Ti3AlC2 . To make the corresponding MXenes, Naguib et al. treated it with HF, which extracts the Al layer from the crystal structure, exposing the Ti atoms to possible chemical functionalization. In the first report, functionalization consisted of either F atoms or OH groups (after reacting with water). A sonication step then led to exfoliation into nanometer-thick crystal layers of the corresponding Ti3C2 MXene (general formula Mx+1Xn).