Solution-combusting preparation of mono-dispersed Mn3O4 nanoparticles for electrochemical applications

► Mono-dispersed Mn3O4 NPs were prepared with a facile solution-combusting method. ► The as-prepared Mn3O4 NP modified GCE showed high sensitivity in the detection. ► The simultaneous determination of DA and AA was feasible.► This electrode will find potential application in the biological detection.