Fabrication and electromagnetic interference shielding performance of open-cell foam of a Cu–Ni alloy integrated with CNTs

•Cu–Ni alloy open-cell foam integrated with CNTs was used for EMI shielding.•The composite was prepared by electroless, electro-, and electrophoretic deposition.•The main shielding mechanism was multiple reflections and absorptions of microwaves.•The composite had a porous structure, large surface a...

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