2016年3月8日 · Here we introduce Ni 3 (HITP) 2 (HITP=2, 3, 6, 7, 10, 11-hexaiminotriphenylene) as an intrinsically conductive metal-organic framework which functions as a well-defined, tunable oxygen reduction...

2023年11月6日 · This dynamic structural evolution mechanism of Ni single atoms represents the self-optimization of active sites in 2e-ORR surface reaction, which is the core factor for Ni SAPs-PuCN with high...

2022年5月1日 · Catalyst with well-defined active sites and highly ordered mesoporous structure is of significant importance for electrocatalytic synthesis of hydrogen peroxide (H 2 O 2) by a two-electron oxygen reduction reaction (ORR). Herein, we present a Ni-based MOF two-electron ORR electrocatalyst derived from zeolitic imidazolate framework-8 (ZIF-8) for ...

2022年8月2日 · The onset potential of the Ni-catalyzed ORR is at about −0.2 V vs Ag/AgCl, and a sustainable O 2 reduction is recorded as the potential goes to the more negative direction.

2024年7月19日 · Herein, we fabricated a hierarchical carbon nanosheet array electrode containing a single-atom Ni catalyst (Ni-SAC) by using organic molecule-intercalated layered double hydroxides (LDHs) as...

2023年10月13日 · Electrocatalysts comprised of Pt–Ni alloy nanocrystals have garnered substantial attention due to their outstanding performance in catalyzing the oxygen reduction reaction (ORR). Herein, we present...

受益于独特结构暴露的高浓度单原子位点，所开发的Ni单原子光催化剂（NiSAPs-PuCN）在纯水中对H2O2生产表现出高活性和选择性：平均H2O2生产速率为342 μmol g-1 h-1,在420 nm 处的AQY达到10.9%，同时实现了0.82%的高SCC效率。 开创性地，结合原位同步加速器X射线吸收光 …

The four-electron (4e−) oxygen reduction reaction (ORR) is a basic reaction in fuel cells and metal–air batteries, but its wide use requires the development of efficient and inexpensive catalysts. This work demonstrates that single-atom-sized Ni–N4 sites embedded in three-dimensional and hierarchically struc

2023年7月1日 · Metal-nitrogen-doped carbons (M N C) are regarded as a type of promising electrocatalysts for oxygen reduction reaction (ORR) due to their low cost and high activity.

2020年8月4日 · Herein, we present a two-dimensional (2D) conductive metal–organic framework consisting of M-N 4 units (M = Ni, Cu) and a hexaaminobenzene (HAB) linker as a catalyst for the oxygen reduction reaction. By varying synthetic conditions, we prepared two Ni-HAB catalysts with different crystallinities, resulting in catalytic systems with different ...