NiPt Nanocatalysts Supported on Boron and Nitrogen Co-Doped Graphene for Superior Hydrazine Dehydrogenation and Methanol Oxidation

作者：Du, Xiaoqiong; Du, Cheng; Cai, Ping^*; Luo, Wei^*; Cheng, Gongzhen

来源：ChemCatChem, 2016, 8(7): 1410-1416.

DOI：10.1002/cctc.201501405

• boron-nitrogen doping
• hydrazine
• hydrogen storage
• methanol oxidation

Boron and nitrogen co-doped graphene (BNG) with negligible covalent boron-nitride (BN) bonding, and high boron and pyridinic nitrogen contents has been synthesized by a two-step method using boron-carbon-nitride (BCN) as the boron and nitrogen sources. The use of the BCN precursor is the key for preparing BNG, while annealing reduced graphene oxide, urea, and boric acid in a one-step method results in separated domains of larger amounts of covalent BN in the graphene networks (s-BNG). The resulting BNGs are further used to anchor NiPt nanoparticles (NPs) with good dispersion. Consequently, Ni3Pt7/BNG-1000 exhibits the highest catalytic activity toward hydrazine dehydrogenation at room temperature, with the turnover frequency of 199.4h(-1). Furthermore, as evidence of its multifunctionality, Ni3Pt7/BNG-1000 is further employed for electrocatalytic methanol oxidation.

• 出版日期2016-4-6
• 单位武汉大学; 南开大学