The electrochemical oxygen reduction reaction (ORR) provides a green route for decentralized H2 O2 synthesis, where a structure-selectivity relationship is pivotal for the control of a highly selective and active two-electron pathway. Here, we report the fabrication of a boron and nitrogen co-doped turbostratic carbon catalyst with tunable B-N-C co...
Non-precious iron-based catalysts (Fe-NCs) require high active site density (SD) to meet the performance targets as cathode catalysts in proton exchange membrane fuel cells (PEMFCs). SD is generally limited to that achieved at 1-3 wt%(Fe) loading due to the undesired formation of iron-containing nanoparticles at higher loadings. Here we show that b...
Electrochemical reduction of CO2 (CO2RR) provides an attractive pathway to achieve a carbon-neutral energy cycle. Single-atom catalysts (SAC) have shown unique potential in heterogeneous catalysis, but their structural simplicity prevents them from breaking linear scaling relationships. In this study, we develop a feasible strategy to precisely con...
status: published
Catalytic oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) have garnered great attention as the key character in metal-air batteries. Herein, we developed a superior nonprecious bifunctional oxygen electrocatalyst, fabricated through spatial confinement of Fe/Fe3C nanocrystals in pyridinic N and Fe-N-x rich carbon nanotubes (Fe/F...
Catalytic oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) have garnered great attention as the key character in metal-air batteries. Herein, we developed a superior nonprecious bifunctional oxygen electrocatalyst, fabricated through spatial confinement of Fe/Fe3C nanocrystals in pyridinic N and Fe-N-x rich carbon nanotubes (Fe/F...
A facile one-pot surfactant-free solvothermal method was developed to synthesize [email protected] layered double hydroxide (LDH) heterostructures. By rationally controlling the sequential growth of ZIF-67 and re-precipitation process of 2-MeIM-inserted Co-Ni LDHs, a series of heterogeneous [email protected] LDH polyhedra with controllable void space and fin...
A facile one-pot surfactant-free solvothermal method was developed to synthesize [email protected] layered double hydroxide (LDH) heterostructures. By rationally controlling the sequential growth of ZIF-67 and re-precipitation process of 2-MeIM-inserted Co-Ni LDHs, a series of heterogeneous [email protected] LDH polyhedra with controllable void space and fin...
status: published
An amidation-dominated re-assembly strategy is developed to prepare uniform single atom Ni/S/C nanotubes. In this re-assembly process, a single-atom design and nano-structured engineering are realized simultaneously. Both the NiO5 single-atom active centers and nanotube framework endow the Ni/S/C ternary composite with accelerated reaction kinetics...
