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 ...

CoP/rGO的X射线衍射图(XRD)显示了位于31.7°、36.5°、46.3°、48.4°和56.6°的衍射峰，分别代表着CoP相的(011)、(111)、(112)、(211)和(301)晶面（图3a）。在40.6°附近有“*”标记的衍射峰属于Co2P的(201)晶面，表明存在少量的Co2P。

2023年10月29日 · xrd谱图显示，制得材料主相为正交相cop。 同时，XRD谱图中并未观察到钨基材料（如W、WOₓ等）的特征衍射峰，证明引入的[WO₄]2⁻基团在热处理磷化过程中并未结晶形成晶相WOₓ。

本文通过Ar下无有机溶剂的低温磷酸化反应制备了具有不同形态的纳米结构CoP，包括纳米线，纳米片和纳米颗粒。 这些纳米结构的特征在于X射线衍射，扫描电子显微镜，透射电子显微镜和Brunauer-Emmett-Teller比表面积测量。

2 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.

The X-ray diffraction (XRD) patterns of the as-synthesized samples were acquired using an X-ray diffractometer (Rigaku D/max-Rb) with Cu Kα radiation (λ = 0.15418 nm). The morphologies and microstructures were detected by field emission scanning electron microscopy (SEM, JEOL JSM-6330) and transmission electron microscopy (TEM, JEOL JEM-2011 ...