Cover Picture: Oxygen‐Ions‐Mediated Pseudocapacitive Charge Storage in Molybdenum Trioxide Nanobelts (ChemNanoMat 6/2015)

MoO3 is a promising supercapacitor electrode material despite its moderate specific capacitance and cycling stability. The work featured on the Front Cover shows that the surface functionality of MoO3 can be modified selectively by tuning the hydrogen peroxide concentration, producing peroxide (O22−) and superoxide (O2−) anions. Meanwhile, bearing different chemical environment at the surface, the inter-atom bonding of MoO3 was altered. This approach of in situ modification of the MoO3 surface enables enhanced specific capacitance and cycling stability. More details can be found in the Communication by P. S. Lee, et al. on page 403 in Issue 6, 2015 (DOI: 10.1002/cnma.201500045).