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2013年11月29日 Science/ R; L7 a2 q# ?
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COVER Color-enhanced scanning electron micrograph of rust (iron oxide) & {7 A' j$ w- E. T( ~+ B) [: N
on painted sheet metal (width of image field: 41.3 micrometers). When activated : E) A/ b$ w4 H" Z2 Y
by a thin carbon layer doped with nitrogen atoms, iron oxide proves to be an 0 S q- Q" i, ~/ H4 ]' i2 y! K6 e
efficient catalyst for selective hydrogenation of nitroarenes to anilines, a
% m/ H9 u& e% B, c ?5 c pprocess that previously required noble metals. See pages 1054 and 1073.
# u2 Q, D+ J6 k/ ?( V" {Image: Eye of Science/Science Source 7 `8 O+ y) h* v
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