首页|Heterostructured Pt-Ni3Mo3N formed via ammonia-containing polyoxometalates for highly efficient electrocatalytic hydrogen evolution in acid medium

Heterostructured Pt-Ni3Mo3N formed via ammonia-containing polyoxometalates for highly efficient electrocatalytic hydrogen evolution in acid medium

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Constructing heterostructured nanohybrid is considered as a prominent route to fabricate alternative electrocatalysts to commercial Pt/C for hydrogen evolution reaction(HER).In this work,(NH4)4[NiH6Mo6O24]·5H2O polyoxometalates(NiMo6)are adopted as the cluster precursors for simple fabrication of heterostructured Pt-Ni3Mo3N nanohybrids supported by carbon black(Pt-Ni3Mo3N/C)without using additional N sources.The improved porosity and enhanced electronic interaction of Pt-Ni3Mo3N/C should be attributed to the integration of Pt with NiMo6,which favors the mass transport,promotes the formation of exposed catalytic sites,and benefits the regulation of intrinsic activity.Thus,the as-obtained Pt-Ni3Mo3N/C exhibits impressive and durable HER performance as indicated by the low overpotential of 13.7 mV at the current density of 10 mA cm-2 and the stable overpotential dur-ing continuous working at 100 mA cm-2 for 100 h.This work provides significant insights for the synthe-sis of new highly active heterostructured electrocatalysts for renewable energy devices.

PolyoxometalatesCluster precursorsHeterostructured nanohybridsHydrogen evolution reactionElectrocatalysis

Bianqing Ren、Xue Gong、Jing Cao、Dezheng Zhang、Zizhun Wang、Ping Song、Ce Han、Weilin Xu

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State Key Laboratory of Electroanalytical Chemistry,Jilin Province Key Laboratory of Low Carbon Chemical Power,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,Jilin,China

School of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,Anhui,China

Key Laboratory of Automobile Materials MOE,School of Materials Science & Engineering,Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials,Electron Microscopy Center,and International Center of Future Science,Jilin University,Changchun 130012,Jilin,China

Key Research and Development Program sponsored by the Ministry of Science and Technology(MOST)Key Research and Development Program sponsored by the Ministry of Science and Technology(MOST)National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

2022YFB40020002022YFA1203400221021722207214522372155220052942192520521721003

2024

10.1016/j.jechem.2024.01.056

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.92(5)