Triple-shell hollow spheres of crystalline copper–nickel ferrite have been synthesized in a simple one-pot procedure using carbon spheres as templates via a hydrothermal approach. Ferric nitrate, copper nitrate, and nickel nitrate were dissolved in water together with glucose, and the mixture was heated to 180 °C in an autoclave. Finally, the carbon core was removed by calcination at 550 °C. The triple-shell hollow spheres of CuNiFe₂O₄ were characterized by XRD, TEM, FE-SEM, and EDS. High catalytic activity for the Suzuki reaction was obtained for this new triple-shell hollow sphere of CuNiFe₂O₄. This also reveals obvious advantages such as the recyclability of the catalyst, simple experimental operation, and excellent yields.

结晶铜-镍铁氧体的三层空心球是通过水热法以碳球为模板，通过简单的一锅法合成的。将硝酸铁，硝酸铜和硝酸镍与葡萄糖一起溶解在水中，并将混合物在高压釜中加热至180℃。最后，通过在550℃下煅烧除去碳核。用XRD，TEM，FE-SEM和EDS对CuNiFe ₂ O ₄的三层空心球进行了表征。这种新型的三层空心CuNiFe ₂ O ₄球获得了对Suzuki反应的高催化活性。这也显示出明显的优点，例如催化剂的可回收性，简单的实验操作和优异的产率。