Biomass‐Derived 3D Carbon Aerogel with Carbon Shell‐Confined Binary Metallic Nanoparticles in CNTs as an Efficient Electrocatalyst for Microfluidic Direct Ethylene Glycol Fuel Cells,Advanced Energy Materials

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Biomass‐Derived 3D Carbon Aerogel with Carbon Shell‐Confined Binary Metallic Nanoparticles in CNTs as an Efficient Electrocatalyst for Microfluidic Direct Ethylene Glycol Fuel Cells
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2019-03-04 , DOI: 10.1002/aenm.201803238
T. Raj kumar ₁ , G. Gnana kumar _{1,

2} , Arumugam Manthiram ₂

Affiliation

Flexible and 3D carbon aerogels (CAs) composed of carbon nanotubes (CNTs) with carbon shell‐confined binary palladium–nickel (Pd_x–Ni_y) nanocatalysts on carbon fibers (Pd_x–Ni_y/NSCNT/CA) have been developed through a facile chemical vapor deposition method. The 3D porous carbon network and the synergistic effect of carbon shell‐confined bimetal nanoparticles of rationally constructed aerogels facilitate enhanced electrocatalytic and antipoisoning activities toward ethylene glycol (EG) oxidation reaction compared to the commercial Pt/C catalyst. With the 3D morphological features and direct growth of Pd–Ni bimetallic nanoparticles encapsulated CNTs on carbon fibers, the Pd₅₂–Ni₄₈/NSCNT/CA delivers a maximum microfluidic direct ethylene glycol fuel cell (µDEGFC) power density and durability of, respectively, 62.8 mW cm⁻² and 60 h. The superior performance observed, with Pd₅₂–Ni₄₈/NSCNT/CA amongst the catalysts reported in the literature, opens an exciting research avenue towards powering next‐generation, portable electronics.

中文翻译：

生物质衍生的3D碳气凝胶，碳纳米管中的碳壳限定二元金属纳米粒子，作为微流控直接乙二醇燃料电池的高效电催化剂

由碳纳米管（CNT）与碳壳约束的在碳纤维上的二元钯-镍（Pd _x -Ni _y）纳米催化剂（Pd _x -Ni _y / NSCNT / CA）组成的柔性和3D碳气凝胶（CA）已通过开发一种简便的化学气相沉积方法。与商业化的Pt / C催化剂相比，合理构建的气凝胶的3D多孔碳网络和碳壳限制的双金属纳米颗粒的协同作用有助于增强对乙二醇（EG）氧化反应的电催化和抗毒活性。Pd ₅₂ –Ni ₄₈具有3D形态特征并在碳纤维上直接包裹了Pd–Ni双金属纳米颗粒包裹的CNT。/ NSCNT / CA分别提供62.8 mW cm ^-2和60 h的最大微流直接乙二醇燃料电池（µDEGFC）功率密度和耐用性。在文献中报道的催化剂中，Pd ₅₂ -Ni ₄₈ / NSCNT / CA具有观察到的优越性能，这为为下一代便携式电子设备提供动力提供了令人兴奋的研究途径。

更新日期：2019-03-04

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