Bifunctional iron nickel phosphide nanocatalysts supported on porous carbon for highly efficient overall water splitting

Huo, Juanjuan; Chen, Yali; Liu, Yan; Guo, J.; Li, Lü; Li, Wenxian; Wang, Yong; Líu, Hao

doi:10.1016/j.susmat.2019.e00117

Cited by 24 publications

(20 citation statements)

References 64 publications

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“…Apart from the above two points, the surface modification of photoelectrodes is also essential for achieving a more efficient and stable unassisted PEC water splitting based on the tandem structures. For instance, the OER commonly exhibits sluggish kinetics and a large overpotential, thus significantly limiting the overall STH efficiency of the whole unassisted system [45]. To overcome this problem, depositing cocatalysts onto the photoanode surfaces has been regarded as an effective method [36].…”

Section: Surface Modificationmentioning

confidence: 99%

Novel integrated strategies toward efficient and stable unassisted photoelectrochemical water splitting

Wang

Hou

et al. 2020

Sustainable Materials and Technologies

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© 2020 Unassisted photoelectrochemical (PEC) water splitting for hydrogen evolution has been regarded as a sustainable route for the harvest and utilization of solar energy. To achieve such unassisted PEC water splitting, two novel integrated strategies have been developed: to design tandem structures of photoanodes/photocathodes and to construct hybrid devices of solar/PEC cells. Some key unsolved problems, however, still limit the further development of high-performance unassisted PEC water splitting, such as low efficiency, poor stability, and high cost. Herein, we present a brief summary of the latest development in this area and propose perspectives for further enhancing this state-of-the-art solarto-hydrogen conversion technology, including all-metal oxide photoelectrodes, nanoarray design, surface modification, device coupling, monolithic configuration, and multi-integration.

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Section: Surface Modificationmentioning

confidence: 99%

Novel integrated strategies toward efficient and stable unassisted photoelectrochemical water splitting

Wang

Hou

et al. 2020

Sustainable Materials and Technologies

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“…High purity iron alloy nanoparticles have potential applications in different research domains due to their properties related to electromagnetic shielding [ 1 , 2 ], magnetism [ 3 , 4 ], and catalysis [ 5 , 6 ]. A wide variety of synthesis methods have been developed for the preparation of FeNi nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Formation of Fe-Ni Nanoparticle Strands in Macroscopic Polymer Composites: Experiment and Simulation

et al. 2021

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Magnetic-field-induced strand formation of ferromagnetic Fe-Ni nanoparticles in a PMMA-matrix is correlated with the intrinsic material parameters, such as magnetization, particle size, composition, and extrinsic parameters, including magnetic field strength and viscosity. Since various factors can influence strand formation, understanding the composite fabrication process that maintains the strand lengths of Fe-Ni in the generated structures is a fundamental step in predicting the resulting structures. Hence, the critical dimensions of the strands (length, width, spacing, and aspect ratio) are investigated in the experiments and simulated via different intrinsic and extrinsic parameters. Optimal parameters were found by optical microscopy measurements and finite-element simulations using COMSOL for strand formation of Fe50Ni50 nanoparticles. The anisotropic behavior of the aligned strands was successfully characterized through magnetometry measurements. Compared to the unaligned samples, the magnetically aligned strands exhibit enhanced conductivity, increasing the current by a factor of 1000.

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“…Electrocatalytic water splitting to produce hydrogen and oxygen demands, when coupled with electricity generated by wind or solar, is an eco-friendly and sustainable approach to address the ever increasing energy demands [35][36][37][38][39] [42][43][44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Atmospheric-pressure plasma seawater desalination: Clean energy, agriculture, and resource recovery nexus for a blue planet

Ekanayake

Seo

Faershteyn

et al. 2020

Sustainable Materials and Technologies

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Water connects every aspect of life. Only 4% of the world's water is fresh water, where most of water sources have different degrees of salinity. As a result, billions of people around the globe face water scarcity which is a global challenge. Desalination technologies which separate the fresh water from the solvated salts ions in saline water are attracting major attention. However, conventional desalination processes including thermally and pressure driven processes are highly energy intensive. To address this issue, here we report that the atmospheric-pressure plasma (APP) treatment of saline water can be a new potential alternative low-energy and green desalination route. Meanwhile, valuable salts are recovered by direct salt crystal precipitation within a short plasma processing time. During desalination and salt precipitation, plasma activated desalinated water (PADW) is generated and can be used for clean energy generation by water splitting and sustainable agriculture by enhanced plant seed germination. In turn, functional nanomaterials can be extracted from the precipitated salt. The PADW exhibited low salinity of 5.6 ms/cm with low pH value of 2.1. The unique intrinsic PADW chemistries further enhanced the electrochemical water splitting in both hydrogen evolution reaction (HER) at a Pt electrode and oxygen evolution reaction (OER) at a RuO 2 electrode compared with the conventional acidic solution of similar pH. Moreover, the feasibility of using PADW in sustainable agriculture was demonstrated by enhancing mungbean seed germination using tap water mixed with PADW. At optimum mix concentration, both seed germination rates and germination percentages increased. Finally, we demonstrated the feasibility of synthesis of high-value 2D nanomaterials exemplified by Mg(OH) 2 nanosheets via single step thermal process using the salt precipitated from the seawater by the plasma process. Combined with straightforward use of renewable electricity to generate APPs, this study reveals the plasma potential for sustainable recovery of clean water, clean energy generation, sustainable agriculture, and manufacturing of advanced functional nanomaterials -all from the greatest treasure of our blue planet -seawater.

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Bifunctional iron nickel phosphide nanocatalysts supported on porous carbon for highly efficient overall water splitting

Cited by 24 publications

References 64 publications

Novel integrated strategies toward efficient and stable unassisted photoelectrochemical water splitting

Novel integrated strategies toward efficient and stable unassisted photoelectrochemical water splitting

Formation of Fe-Ni Nanoparticle Strands in Macroscopic Polymer Composites: Experiment and Simulation

Atmospheric-pressure plasma seawater desalination: Clean energy, agriculture, and resource recovery nexus for a blue planet

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