The structure of a cheap and high-efficient electrochemical catalyst for hydrogen evolution reaction (HER) plays an essential impact in producing updatable hydrogen energy. Herein, we introduce a facile way to synthesize graphene aerogel inlaid with NiCoP nanoparticles (NiCoP-NPs@GA), which used seaweed biomass as precursors through a phosphorization route. In this work, graphene oxide (GO) with thin layer structure and carbon aerogel (CA) skeleton with a three-dimensional (3D) structure were connected in series to form a 3D-graphene aerogel (GA) as a composite material for conductive matrix. In addition, NiCoP nanoparticles (NiCoP-NPs) are uniformly encapsulated in GA nanoflakes, and the particles size can be controlled by the nanopores of the GA nanoflakes. The excellent 3D-GA matrix contains numerous open pores which can effectively circumvent volume expansion and aggregation of the NiCoP-NPs. Compared with NiCoP bulk, the NiCoP-NPs@GA demonstrated the advantages of larger specific surface areas and better HER overpotential function of only 109 m V with an operational density of 10 mA/cm², along with a less Tafel gradient of 63 mV/dec in 0.5 M H₂SO₄. Our protocol opens a new avenue for synthesis of many transition metal catalytic makings and provides a preliminary research for their potential function in industry.

用于氢析出反应（HER）的廉价，高效的电化学催化剂的结构在产生可更新的氢能方面起着至关重要的作用。在此，我们介绍了一种简便的方法来合成镶嵌有NiCoP纳米颗粒（NiCoP-NPs @ GA）的石墨烯气凝胶，该纳米颗粒通过磷化途径将海藻生物质用作前体。在这项工作中，具有薄层结构的氧化石墨烯（GO）和具有三维（3D）结构的碳气凝胶（CA）骨架被串联连接，以形成3D石墨烯气凝胶（GA）作为导电基质的复合材料。此外，NiCoP纳米颗粒（NiCoP-NPs）被均匀地封装在GA纳米薄片中，并且可以通过GA纳米薄片的纳米孔来控制粒度。出色的3D-GA基质包含许多可有效规避NiCoP-NP体积膨胀和聚集的开孔。与NiCoP体相比较，NiCoP-NPs @ GA具有较大的比表面积和更好的HER过电势功能（仅109 m V，工作密度为10 mA / cm）的优点。²，以及在0.5 MH ₂ SO _4中的63 mV / dec的较小Tafel梯度。我们的协议为许多过渡金属催化材料的合成开辟了一条新途径，并对它们在工业中的潜在功能提供了初步研究。