12019-57-7Relevant articles and documents
Mineralization routes to polyphosphides: Cu2P20 and Cu5InP16
Lange, Stefan,Bawohl, Melanie,Weihrich, Richard,Nilges, Tom
, p. 5654 - 5657 (2008)
(Figure Presented) Mineralization chemistry: Cu2P20 and Cu5InP16 were synthesized by a mineralization reaction from the elements and binary starting materials. Cu2P20 is the first representative retaining the structural features of violet or fibrous phosphorus in a binary compound (see picture). Cu5InP 16 displays a previously unseen layered polyphosphide substructure built up of six-membered rings connected via four phosphorus bridges.
[Cd3Cu]CuP10, [Cd3Cu] cluster stabilized in an adamantane-like polyphosphide substructure
Bawohl, Melanie,Nilges, Tom
, p. 667 - 673 (2009)
[Cd3Cu]CuP10 is the first representative of the adamantane-like polyphosphides featuring a metalloid, tetrahedral [M 3X] heterocluster, containing only d10 ions. It was prepared by the mineralization concept for
Synthesis and characterization of Cu3P hollow spheres by a facile soft-template process
Wang, Xinjun,Wan, Fuquan,Liu, Juan,Gao, Youjun,Jiang, Kai
, p. 233 - 236 (2009)
Hollow Cu3P microspheres have been successfully synthesized by a facile ethylenediamine tetraacetic acid (EDTA) mediated solvothermal route using CuSO4·5H2O and yellow phosphorus as starting materials in a mixture solution
Thermal decomposition of dihypophosphito - (UREA) - copper(II)
Yagodin A.
, p. 537 - 542 (1988)
The physico-chemical properties of the newly synthesized complex Cu(H2PO2)2CO(NH2)2 were investigated. The unit cell parameters and the mode of coordination of the urea molecule were determined. The thermal decomposition of the complex, which displays a topochemical character, was studied by thermogravimetric and mass-pectrometric methods. The end-products of the decomposition were detected. The activation energies of the process in the temperature ranges 323-330 K are 23.4 ± 1.4 and 20.64 ± 2.2 kcal/mol, respectively.
Use of synergistic effects of the co-catalyst, p-n heterojunction, and porous structure for improvement of visible-light photocatalytic H2 evolution in porous Ni2O3/Mn0.2Cd0.8S/Cu3P@Cu2S
Zhang, Dafeng,Tang, Yunxiang,Qiu, Xiaoxue,Yin, Jie,Su, Changhua,Pu, Xipeng
, (2020)
The efficient separation and transfer of photogenerated charge carriers play indispensable roles in improving the photocatalytic H2 evolution activity. Herein, we designed a Ni2O3-modified Mn0.2Cd0.8S/Cu3P@Cu2S (MCS/CPS) p-n heterojunction structure with a porous morphology for efficient and stable photocatalytic H2 evolution under visible-light irradiation. Novel porous Cu3P@Cu2S was obtained using a vulcanization method and Cu2S nanoparticles were grown uniformly in situ on the surface of Cu3P. Ni2O3 was adopted as a co-catalyst on the MCS/CPS p-n heterojunction surfaces to promote electrons transfer. Due to the synergistic effects of the co-catalyst, p-n heterojunction, and porous morphology, the as-synthesized Ni2O3/MCS/CPS composite with 9 wt% Ni2O3 and 2.5 wt% CPS exhibits an optimal photocatalytic H2 evolution rate of 9.2 mmol g?1 h?1, which is 14.4 and 2.4 times higher than those of pure MCS and 9%Ni2O3/MCS, respectively. Meanwhile, the optimal sample exhibits an apparent quantum efficiency of 33.5% at 420 nm and an excellent stability under 20 h of irradiation. Moreover, a possible mechanism for the improved photoactivity of the as-synthesized Ni2O3/MCS/CPS composite has been discussed in this paper.
Promotion of the excited electron transfer over MoO3@Cu3P p-n heterojunction for photocatalytic hydrogen production under visible light irradiation
Jin, Zhiliang,Liu, Tianxia,Yang, Kaicheng
, (2021)
In this study, the 0D-Cu3P nanoparticles were successfully anchored on the surface of 2D-MoO3 nanosheets by a one-step calcination strategy for the first time, and a low-cost, excellent performance MoO3@Cu3P photocatalyst was prepared. The unique 0D/2D structure allows Cu3P and MoO3 to be in close contact to provide more active sites, and a p-n heterojunction was established at the metallurgical interface. The existence of built-in electric field in the barrier region erects a fast transfer channel for electrons, which significantly improves transfer kinetics. Additionally, SEM, TEM, UV–vis, XPS, XRD, BET, PL and TRPL were used to study the reasons for the increase in hydrogen production activity and the intrinsic properties of the photocatalyst. Finally, a feasible photocatalytic hydrogen evolution reaction mechanism under dye-sensitized conditions is proposed. Our work has provided motivation for using the earth's abundant transition metal phosphides to design and improve the photocatalytic activity of wide-bandgap semiconductor photocatalysts.
Synthesis and characterization of hollow spherical copper phosphide (Cu3P) nanopowders
Liu, Shuling,Qian, Yitai,Xu, Liqiang
, p. 438 - 440 (2009)
In this paper, hollow spherical Cu3P nanopowders were synthesized by using copper sulfate pentahydrate (CuSO4{dot operator}5H2O) and yellow phosphorus in a mixed solvent of glycol, ethanol and water at 140-180?{ring o
Resource-Efficient High-Yield Ionothermal Synthesis of Microcrystalline Cu3-xP
Wolff, Alexander,Pallmann, Julia,Boucher, Richard,Weiz, Alexander,Brunner, Eike,Doert, Thomas,Ruck, Michael
, p. 8844 - 8851 (2016)
Polycrystalline Cu3-xP was successfully synthesized in different ionic liquids comprising imidazolium and phosphonium cations. The reaction of elemental copper and red phosphorus in trihexyltetradecylphosphonium chloride at 200 °C led to single-phase Cu3-xP (x = 0.05) within 24 h with a quantitative yield (99%). Liquid-state nuclear magnetic resonance spectroscopy of the ionic liquids revealed degeneration of the imidazolium cations under the synthesis conditions, while phosphonium cations remain stable. The solid products were characterized with X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, solid-state nuclear magnetic resonance spectroscopy, and elemental analysis. A reinvestigation of the electronic transport properties of Cu2.95(4)P showed metallic behavior for the bulk material. The formation of CuP2 during the synthesis of phosphorus-rich Cu3-xP (x ≥ 0.1) was observed.
Special Z-scheme Cu3P/TiO2 hetero-junction for efficient photocatalytic hydrogen evolution from water
Du, Hong,Liu, Xuan,Sun, Xiaohui,Wang, Jing,Wang, Qiaoyun,Xiao, Lu
, (2021/11/19)
Exploring sustainable noble-metal-free photocatalyst still remains a huge challenge for highly efficient and durable photocatalytic H2 production. In this work, Cu3P nanosheets were successfully synthesized by a simple hydrothermal method without using any organic solvents, and red phosphorus was used as the phosphorus source. A Z-scheme Cu3P/TiO2 photocatalyst without a noble metal was rationally fabricated to achieve UV–vis harvesting. Compared to TiO2, the optimized Cu3P/TiO2 photocatalyst displays much more excellent activity with the hydrogen evolution rate of 607.5 μmol h?1 g?1, which is 30.4 folds higher than that of bare TiO2 photocatalyst under solar light irradiation. The enhancement of charge carriers separation efficiency in Cu3P/TiO2 is demonstrated by the photoluminescence (PL) spectra, transient photocurrent response and electrochemical impedance spectroscopy (EIS). Moreover, The photo-induced charge-transfer route of Cu3P/TiO2 is a Z-scheme transfer mode confirmed by selective deposition of Pt nanoparticles, the photocatalytic decomposition of Rhodamine B (RhB). In the Z-scheme system, the holes are left on the TiO2, and photo-exited electron will be enriched on Cu3P nanosheets for hydrogen evolution. This work will provide more insight into fabricating eco-friendly phosphide-based catalyst with efficient photocatalytic hydrogen property and sufficient durability for solar-to-chemical conversion and utilization.
