针对当前电催化水解析氢反应所需求的低过电位和高催化活性难题，本项目拟利用“喷雾热解技术”、“种籽生长法”和“界面组装手段”，拟构筑系列镍基合金纳米棒阵列修饰的绣球碳等级孔复合体系（Ni-AlloyNRs-array/PCS）电催化纳米材料。这一等级孔复合体系包含了丰富的互通大孔和绣球碳壁内的微孔以及与合金纳米棒阵列形成的介孔。该材料利用等级孔结构促进电催化析氢反应物质传输；利用合金纳米棒阵列提高活性位点的内在活性和密度，降低电化学反应的能垒；利用导电的绣球碳骨架和合金阵列促进电极和电解质界面上的电荷传递。最终达到减小极化，降低过电位，增强催化材料内在活性的目的，从而实现稳定高效的电催化水解析氢。通过改变材料的等级孔结构、合金组成、合金纳米棒阵列的密度和绣球碳的掺杂等来研究电催化的调控过程，优化析氢性能，揭示电催化剂的构效关系。课题的开展将为推进氢能的发展起到积极作用。

Facing to the problem on undesirable over-potential of hydrogen revolution and catalytic activity, this project plans to design and prepare serials of Ni-based alloy nanorods array modified overall porous-carbon-spheres (Ni-AlloyNRs-array/PCS) hierarchical porous composite system electrocatalytic nanomaterials with high catalytic activity by using “spray-pyrolysis technique”, “seed growth method” and “interface assembly way”. This hierarchical porous composite system contains rich overall channel macroporous and microporous in PCS wall and mesoporous formed by alloy nanorods array. As-designed nanomaterial will utilize hierarchical porous structure to promote mass transfer in electrocatalysis process; employs alloy nanorods array to increase the intrinsical activity of each active-cites for the decrease of energy barrier in electrochemical reation; depend on the conductivity of PCS and Ni-based alloy nanorods array to diliver the electrons on the interface of electrod and electrolyte. Thus, the purposes can be reached for reducing polarization, lowering overpotentional and enhancing catalytic activity, and we hope to realize the high efficiency stable electrocatalytic hydrogen revolution toward the water splitting. The investigation of electrocatalytic controlling process can be carried out through the adjusting of hierarchical porous structure, alloy component, the density of alloy nanorods array and hybride PCS, which can be used to optimize the performance of hydrogen revolution, and reveal the structure and function relation. This project is expected to impel the development of hydrogen energy.