Silver

diamagnetism

why silver is diamagnetic, although it is having unpaired electrons?

ALL CRYSTALIZED SILVER OBJECTS

I NEED KNOWLEDGE ABOUT MAKING CRYSTALIZE PLATES ON SILVER SURFACE IN LABRATORY, AS THE NATURE MAKES IT IN LONG YEARS OR IS IT POSSIBLE TO MAKE COMPLETELY CRYSTALIZED SILVER OBJECT?
CRYSTALIZATION OF METALS IS THE SAME THING AS BEING-TURNING CARBON ??

THE NATURALY(300-500-2000 YEARS OLD) CRYSTALIZED SILVER HAS A DIFFERENT SOUND-TONE-TIMBRE WHE DROPPED ON A HARD SURFACE LIKE MARBKE OR GLASS OTHER THAN NEW ONES WHIC HAS THE SAME WEIGHT AND SHAPE,IS IT ABOUT CRYSTALIZED METAL BODY OR WHAT?

error in units

The units of resistivity don't come out right.

10^-8 Ohm * m
or
m Ohm * cm

the 'm' should be a 'mu', but unfortunately they both look the same in the latin alphabet.

WebElements's picture

Self-cleaning titania nanotube hydrogen sensors

The Science Blog reports here that researchers at Penn State in the USA are developing self-cleaning titania nanotube hydrogen sensors. The hydrogen sensors are titania nanotubes coated with a discontinuous layer of palladium.

"The photocatalytic properties of titania nanotubes are so large - a factor of 100 times greater than any other form of titania - that sensor contaminants are efficiently removed with exposure to ultraviolet light, so that the sensors effectively recover or retain their original hydrogen sensitivity in real world application"

"The photocatalytic properties of titania nanotubes are so large - a factor of 100 times greater than any other form of titania - that sensor contaminants are efficiently removed with exposure to ultraviolet light, so that the sensors effectively recover or retain their original hydrogen sensitivity in real world application"

"By doping the titania nanotubes with trace amounts of different metals such as tin, gold, silver, copper, niobium and others, a wide variety of chemical sensors can be made.

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