Phosphorus-modified tungsten nitride/reduced graphene oxide (P-WN/rGO) is designed as a high-efficient, low-cost electrocatalyst for the hydrogen evolution reaction (HER). WN (ca. 3 nm in size) on rGO is first synthesized by using the H3[PO4(W3O9)4] cluster as a W source. Followed by phosphorization, the particle size increase slightly to about 4 nm with a P content of 2.52 at %. The interaction of P with rGO and WN results in an obvious increase of work function, being close to Pt metal. The P-WN/rGO exhibits low onset overpotential of 46 mV, Tafel slope of 54 mV dec(-1), and a large exchange current density of 0.35 mA cm(-2) in acid media. It requires overpotential of only 85 mV at current density of 10 mA cm(-2), while remaining good stability in accelerated durability testing. This work shows that the modification with a second anion is powerful way to design new catalysts for HER.

Objects displaced intermittently across the visual field will nonetheless give an illusion of continuous motion [called apparent motion (AM)] under many common conditions. It is believed that form perception is of minor importance in determining AM, and that AM is mediated by motion-sensitive areas in the "where" pathway of the cortex. However, form and motion typically interact in specific ways when natural objects move through the environment. We used functional magnetic resonance imaging to measure cortical activation to longrange AM, compared to short-range AM and flicker, while we varied stability of structural differences between forms. Long-range AM activated the anteriortemporal lobe in the visual ventral pathway, and the response varied according to the form stability. The results suggest that long-range AM is associated with neural systems for form perception.

Phosphorus-modified tungsten nitride/reduced graphene oxide (P-WN/rGO) is designed as ahigh-efficient, lowcost electrocatalyst for the hydrogen evolution reaction (HER). WN (ca. 3nminsize) on rGO is first synthesized by using the H 3 [PO 4 (W 3 O 9 ) 4 ]cluster as aWsource.F ollowed by phosphorization, the particle sizei ncrease slightly to about 4nmw ith aPcontent of 2.52 at %. The interaction of Pw ith rGO and WN results in an obvious increase of work function, being close to Pt metal. The P-WN/rGO exhibits lowo nset overpotential of 46 mV,T afel slope of 54 mV dec À1 ,a nd al arge exchange current density of 0.35 mA cm À2 in acid media. It requires overpotential of only 85 mV at current density of 10 mA cm À2 ,w hile remaining good stability in accelerated durability testing.T his work shows that the modification with as econd anion is powerfulw ay to design new catalysts for HER.