In this work, Pt nanoparticles modified nanoporous AuSn([email protected]) alloy on Ni buffered flexible carbon fiber paper (CFP) is fabricated by a simple replacement reaction in which NP-AuSn is fabricated by controllable dealloy of electrodeposited Au-Sn alloy films. The as prepared [email protected]/Ni/CFP possesses hierarchical pore structure, high specific surface area and excellent catalytic activity. Due to the bi-functions of both the large surface area of nanoporous metal and macroporous of carbon fiber paper facilitating mass transfer, the [email protected]/Ni/CFP shows high sensitivity of detecting ascorbic acid (AA), dopamine (DA) and uric acid (UA), with sensitivities of 0.14 μA μM⁻¹ cm⁻², 15.23 μA μM⁻¹ cm⁻², 0.28 μA μM⁻¹ cm⁻² under the concentration ranging from 200 to 2000 μM, 1–10 μM, and 25–800 μM for AA, DA and UA, respectively. Further, the [email protected]/Ni/CFP possesses long-term stability of sensing AA, DA and UA and presents great anti-interference towards a variety of common compounds in body fluid. All of these results manifest the [email protected]/Ni/CFP can be a promising candidate for the application of the electrochemical sensor for simultaneous detection of AA, DA and UA.

在这项工作中，通过简单的置换反应在镍缓冲的柔性碳纤维纸（CFP）上制备了Pt纳米粒子改性的纳米多孔AuSn（[受电子邮件保护]）合金，其中通过可控的电沉积Au-Sn合金来制备NP-AuSn。电影。所制备的[受电子邮件保护的] / Ni / CFP具有分级的孔结构，高比表面积和出色的催化活性。由于纳米孔金属的大表面积和碳纤维纸的大孔都具有双重功能，从而促进了质量传递，因此[电子邮件保护] / Ni / CFP显示出检测抗坏血酸（AA），多巴胺（DA）和多巴胺的高灵敏度。尿酸（UA），0.14μAμM灵敏度^-1厘米^-2，15.23μAμM ^-1厘米^-2，0.28μAμM ^-1厘米^-2范围从200到2000微米，1-10微米，25-800微米，用于分别AA，DA和UA，该浓度下。此外，[电子邮件保护] / Ni / CFP具有检测AA，DA和UA的长期稳定性，并且对体液中的多种常见化合物具有极大的抗干扰性。所有这些结果表明，[电子邮件保护] / Ni / CFP可能是用于同时检测AA，DA和UA的电化学传感器应用的有前途的候选者。