过渡金属二硫属化合物(TMD)是有前途的二维纳米材料,可用于多种应用,但是它们内在的化学惰性阻碍了它们的修饰。在这里,提出了一种用于2H-MoS2和2H-MoSe2的光催化酰化的新方法,利用四丁基十一钨酸铵((nBu4N)4W10O32)多金属氧酸盐配合物作为催化剂,并利用常规卤素灯作为辐射源。通过利用TMD的半导体特性,这些材料的功能化出现了新的途径。这种新颖的光催化方案构成了基于催化方案的2D纳米材料化学修饰的第一份报告,适用于脂肪族和芳香族基材。通过使用烷基和芳香醛来探索TMD的去钨酸盐光催化酰化反应的范围,并且通过多种光谱学证实了该方法的成功,热,显微成像,和氧化还原技术。这种用于修饰2D纳米材料的催化方法在TMD的功能化协议中引入了原子经济原理。它标志着在TMD修饰和纳米材料化学领域向更可持续和有效的方法转变。
Transition metal dichalcogenides (TMDs) are promising 2D nanomaterials for diverse applications, but their intrinsic chemical inertness hinders their modification. Herein, a novel approach is presented for the photocatalytic acylation of 2H-MoS2 and 2H-MoSe2, utilizing tetrabutyl ammonium
decatungstate ((nBu4N)4W10O32) polyoxometalate complex as a catalyst and a conventional halogen lamp as a source of irradiation. By harnessing the semiconducting properties of TMDs, new avenues emerge for the functionalization of these materials. This novel photocatalytic protocol constitutes the first report on the chemical modification of 2D nanomaterials based on a catalytic protocol and applies to both aliphatic and aromatic substrates. The scope of the
decatungstate-photocatalyzed acylation reaction of TMDs is explored by employing an alkyl and an aromatic aldehyde and the success of the methodology is confirmed by diverse spectroscopic, thermal, microscopy imaging, and redox techniques. This catalytic approach on modifying 2D nanomaterials introduces the principles of atom economy in a functionalization protocol for TMDs. It marks a transformative shift toward more sustainable and efficient methodologies in the realm of TMD modification and nanomaterial chemistry.