2020年3月9日 · Herein, we report an efficient strategy for synthesizing a bifunctional electrocatalyst comprising porous Ni/NiO nanosheets, where the catalyst exhibits outstanding electrocatalytic stability with overpotential of 1.49 V (10 mA cm −2) and half-wave potential of 0.76 V in the OER and ORR, respectively. The porous Ni/NiO nanosheet-based Zn ...

这项研究表明，单原子Ni (Ni SA ) 的嵌入大大降低了氧化镍负载的Pd 纳米粒子(NiO 2 /Pd) 在氧还原反应(ORR) 中的反应活性。 结果表明，过渡态在动力学上巩固了化学吸附的 O 和OH物种对 ORR 活性的吸附能。

2022年7月1日 · Ru-doped NiO/Co 3 O 4 catalyst has an ultralow overpotential for OER and a high half-wave potential for ORR. Ru-doped NiO/Co 3 O 4 based water-splitting device only needs 1.555 V and 1.650 V to reach 10 and 100 mA cm −2.

2024年10月15日 · The oxygen reduction reaction (ORR) is a reversible process of OER. Reactions steps in ORR are all downhill of S-NiO, S-IrO 2, and NiO/IrO 2-NF, as shown in Fig. 5 c, Figure S25 (b, d), and Table S8. The Ni-active site in NiO/IrO 2-NF demonstrates the best performance for ORR with the lowest overpotential (0.55 V) as compared to other active sites.

2024年9月12日 · In addressing this challenge, we have developed a novel Ni/NiO-C nanocomposite catalyst derived from a nickel-based metal–organic framework (Ni-SKU-5). For the ORR, the Ni/NiO-C catalyst exhibits an onset potential of 0.95 V vs RHE in a 1.0 M KOH solution, coupled with a Tafel slope of −99 mV dec –1 at 1600 rpm.

2023年10月1日 · Bifunctional performance of different MnO, NiO, and TiO-based electrocatalysts compared with ORR and OER benchmark catalysts Pt/C and IrO 2. On the other hand, few reviewed materials showed similar or slightly better performance than …

双功能电催化剂能够有效驱动氧还原反应（orr）和析氧反应（oer），对于推进电化学过程至关重要。 虽然贵金属基催化剂因其在制氧过程中的作用而得到广泛认可，但目前最先进的设计仅限于 ORR 或 OER 活性，存在显着的研究空白。

One approach to accelerate the stagnant kinetics of both the oxygen reduction and evolution reactions (ORR/OER) is to develop a rationally designed multiphase nanocomposite, where the functions...

2022年5月10日 · The design and development of bifunctional electrocatalysts that can catalyze both the oxygen evolution reaction and oxygen reduction reaction (OER/ORR) is a burning issue for energy conversion and storage technologies. Herein, we demonstrate the bifunctional activity of CeO 2 nanospheres embedded in NiO

2024年7月2日 · Here, we demonstrate the uniform dispersion of noble metals like (Au), palladium (Pd), and platinum (Pt) on nickel oxide on nickel electrodes (NM@NiO|Ni) for promoting ORR under alkaline electrolytes through engineering the electronic structures of …