Synthesis and characterization of superhydrophobic functionalized Cu(OH)2 nanotube arrays on copper foil

the National Natural Science Foundation of China (Grant No. 20571024);the Program for Science & Technology Innovation Talents in Universities of Henan Province (Grant No. 2006KYCX001);the Natural Science Foundation of Education Department of Henan Province (Grant No. 2007430013;2008B430020)