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PtNi-W/C with Atomically Dispersed Tungsten Sites Toward Boosted ORR in Proton Exchange Membrane Fuel Cell Devices
Nano-Micro Letters ( IF 31.6 ) Pub Date : 2023-06-02 , DOI: 10.1007/s40820-023-01102-9
Huawei Wang 1 , Jialong Gao 1 , Changli Chen 1 , Wei Zhao 2 , Zihou Zhang 1 , Dong Li 1 , Ying Chen 1 , Chenyue Wang 1 , Cheng Zhu 1 , Xiaoxing Ke 3 , Jiajing Pei 4 , Juncai Dong 4 , Qi Chen 1 , Haibo Jin 1 , Maorong Chai 2 , Yujing Li 1
中文翻译：
具有原子分散钨位点的 PtNi-W/C 可提高质子交换膜燃料电池装置中的 ORR
更新日期：2023-06-02
Nano-Micro Letters ( IF 31.6 ) Pub Date : 2023-06-02 , DOI: 10.1007/s40820-023-01102-9
Huawei Wang 1 , Jialong Gao 1 , Changli Chen 1 , Wei Zhao 2 , Zihou Zhang 1 , Dong Li 1 , Ying Chen 1 , Chenyue Wang 1 , Cheng Zhu 1 , Xiaoxing Ke 3 , Jiajing Pei 4 , Juncai Dong 4 , Qi Chen 1 , Haibo Jin 1 , Maorong Chai 2 , Yujing Li 1
Affiliation
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A hybrid electrocatalyst consisting of PtNi-W alloy nanocrystals loaded on carbon surface with atomically dispersed W sites was realized.
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Single-atomic W formed protonic acid sites and established an extended proton transport network at the catalyst surface.
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Peak power density is enhanced by 64.4% compared to that with the commercial Pt/C catalyst in fuel cell as cathode at ultra-low loading of 0.05 mgPt cm−2.
中文翻译：
具有原子分散钨位点的 PtNi-W/C 可提高质子交换膜燃料电池装置中的 ORR
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实现了一种由负载在碳表面上的具有原子分散的W位点的PtNi-W合金纳米晶体组成的混合电催化剂。
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单原子W形成质子酸位点并在催化剂表面建立扩展的质子传输网络。
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与燃料电池中商用Pt/C催化剂作为阴极相比，在0.05 mg Pt cm -2的超低负载量下，峰值功率密度提高了64.4% 。
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