2019年11月26日 · We demonstrate here the design and synthesis of CoP nanoframes (CoP NFs) by a strategy involving precipitation, chemical etching, and low-temperature phosphidation steps. It results in impressive bifunctional catalytic activities for both HER and OER and consequently enables a highly efficient water electrolyzer with a current density of 10 mA ...

2021年10月5日 · Here, we employ heterogeneous cobalt phosphide (CoP x, CoP-CoP 2) as the core to construct core-shell-structured CoP x @FeOOH as an efficient OER catalyst for seawater oxidation. Beyond their simple physical mixture, the combination of the highly conductive CoP x core and the OER-active FeOOH shell generates excellent synergistic effects such ...

2025年3月5日 · Herein, carbon fiber cloth supported hierarchical actinia-like nanorod array with CoP core and N-doped carbon shell (CoP@NC/CC) is constructed as efficient catalyst for overall alkaline water and alkaline seawater electrolysis.

2017年2月1日 · The XRD results suggest that core-shell structured CoP@FeP is successfully obtained through phosphorization treatment on Co(OH) 2 /PB microcubes. Raman spectrum ( Fig. 5 b) of the RGO@CoP@C-FeP composite shows two strong peaks at 1350 and 1580 cm −1 , which are assigned to the D band and G band of the carbon materials, demonstrating the ...

The improved battery performance of the CoP–Co2P/RGO electrode is attributed to its highly-porous structure, high capacity of CoP, high electrical conductivity of graphene and Co2P, and the ...

High-resolution XPS spectra of P (B), Co (C), and Ni (D) in CoP and NiP NCs. Source publication Highly Ordered Mesoporous Bimetallic Phosphides as Efficient Oxygen Evolution Electrocatalysts

In this paper, the hierarchical nanosheet of CoP nanoparticles embedded in a two-dimensional carbon skeleton (Co-NP@C) with flake-like ZIF-67 as its precursor was synthesized by facile ...

4 天之前 · The crystal information of CoP/N, P–C is examined by XRD test (Fig. 2a), where the obvious peaks at 23.66°, 32.02°, 35.36°, 45.10° and 48.13° are indexed to (101), (002), (200), (210) and (211) planes of CoP phase with orthorhombic structure (PDF No. 29–0497), which is consistent with the TEM results, indicating that cobalt phosphide ...

2017年4月4日 · Characterization by in situ X-ray diffraction (XRD) monitored the topotactic transformation underlying the controllable formation of CoP/CoP 2 via tuning the phosphorization time.

2018年8月1日 · In the XRD pattern of Au@CoP NPs, all the new diffraction peaks at around 32°, 36°, 46°, and 48° can be assigned to the standard CoP (PDF#29-0497), which confirms the formation of cobalt phosphides. The XRD pattern of pure CoP NPs is consistent with the standard diffraction pattern of CoP (PDF#29-0497).