Coupling nonstoichiometric Cu2−xSe with stable Cu2Se berzelianite for efficient synergistic electrocatalytic hydrazine-assisted water splitting

Lv, Xian‐Wei; Kong, Qing‐Hui; Song, Xin‐Lian; Liu, Yuping; Yuan, Zhong‐Yong

doi:10.1039/d2qi01699k

Cited by 22 publications

(12 citation statements)

References 54 publications

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“…2c, the peaks of binding energies at around 530.9, 531.9 and 530.4 eV belong to oxygen elements of Cu 2 O(SeO 3 ), Cu 2 O, and CuO, respectively. 20–22 The XPS findings further create a clear picture for the successful construction of the coordination environment of the Se–O bond. A summary of the XPS and ICP results of Cu 2− x Se and Cu 2 O(SeO 3 ) is presented (Table S1, ESI†).…”

mentioning

confidence: 82%

Constructing the coordination environment of Se–O in Cu_2−xSe for electrochemical hydrogen evolution

Song,

Shao,

Zhu

et al. 2023

Chem. Commun.

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mentioning

confidence: 82%

Constructing the coordination environment of Se–O in Cu_2−xSe for electrochemical hydrogen evolution

Song,

Shao,

Zhu

et al. 2023

Chem. Commun.

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“…The nitrides, , sulfides, , phosphides, ,,,,− and selenides ,, of Ni and Co are popular HzOR electrocatalysts. E onset values as low as −0.18 to 0 V vs RHE at pH = 14 were reported for such inorganic phases, ,,,− including on carbon ,,,,− or metallic foam supports. ,,,− ,,,− Nanoparticles of FeP, Cu 3 P, Cu 2 Se, and RuP 2 are active toward the HzOR, with reported onsets as low as −0.1 V vs RHE for the Ru-based material. However, most transition metals (including Ni, Co, Cu, and Fe) are most stable as hydroxides at pH 14 at 25 °C. , Thus, the inorganic compounds serve only as precursors, so that the catalytic hydroxide surface forms in situ .…”

Section: Nanoparticlesmentioning

confidence: 99%

Hydrazine Oxidation Electrocatalysis

Burshtein,

Yasman,

Muñoz-Moene

et al. 2024

ACS Catal.

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The electro-oxidation of hydrazine is important for direct hydrazine fuel cells and for fundamental understanding of electrocatalysis in the nitrogen cycle. In this Review, we discuss electrocatalysis of the hydrazine oxidation reaction (HzOR), spanning a vast range of metal surfaces, nanoparticles, atomically dispersed ions, organometallic macrocycles, and enzymes. Emphasis is given to structure−activity correlations and reactivity descriptors, including the formulation of the Zagal principle, an electrochemical corollary of the Sabatier principle. In addition, we identify overarching themes that span the different subfields of HzOR electrocatalysis, hoping to inspire cross-disciplinary research avenues.

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“…A single‐junction silicon solar cell with an output voltage of 0.54V was applied to drive the HzOR‐assisted water splitting system in alkaline system, wherein green H 2 can be generated upon natural solar irradiation (Figure 15b). Similar studies about solar‐driven HzOR‐assisted water splitting systems have also been performed by using the highly efficient electrocatalyst such as carbon‐coated RuP 2 porous microsheets, [ 173 ] Cu x Se/copper foam, [ 174 ] and Ni 5 P 4 . [ 175 ]…”

Section: Organic Compound‐assisted Water Splittingmentioning

confidence: 99%

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Zhao

Yuan

2023

Advanced Energy Materials

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energy system is among the most promising solutions to solve the above issues. Substituting the current energy carrier with a sustainable fuel is one of the crucial points in the system. Hydrogen as a green and high energy density carrier, primarily derived from water, can satisfy the requirement of sustainable development and facilitate environmental protection and energy conservation. Nowadays, hydrogen is mainly produced from numerous nonrenewable energy such as fossil fuels and biomass for practical applications. [1][2][3] Water electrolysis is a hopeful strategy for efficient and sustainable hydrogen production, but not cost-effective due to the need for large electricity consumption. [4,5] It remains challenging to achieve highly effective hydrogen production with lowcost and renewable energy.Sunlight is an endlessly renewable energy source, which can substitute fossil fuels. In this regard, coupling of sunlight and water electrolysis is desperately needed. The photovoltaic module coupled with water electrolyzers (PV-EC) to achieve the direct conversion of solar energy into hydrogen fuel is a good choice for sustainable energy system. The solar-driven water electrolysis can be achieved through the electrical power generated by a photovoltaic system for driving an external water electrolyzer. [6][7][8] The solar cells do not need to immerse into the electrolyte and not be vulnerable to corrosion in this configuration. However, the high cost of solar photovoltaic devices limits its practical applications. Integrated photoelectrochemical (PEC) devices comprising a photovoltaic device and a water electrolyzer in a single device have aroused much attention. [9][10][11] It allows the direct coupling of light absorbers and catalysts, which could reduce the cost and mechanical limitations. One of the most prominent works is the "artificial leaf", which comprises a triple junction and amorphous silicon photovoltaic interfaced to hydrogen-and oxygen-evolving catalyst for achieving an efficiency of 4.7%. [12] Considering the fluctuating output power and intrinsically intermittent nature of solar energy, a rechargeable energy storage device could be introduced to serve as a reservoir to offer a stable electrical output and accommodate solar energy. The PV-ES-EC system can thus be achieved through the fabrication of an efficient energy storage device to couple the photovoltaic device and water electrolyzer.Notably, the above solar-driven water electrolysis systems require highly conductive and stable separators, highly Solar-driven water electrolysis has been considered to be a promising route to produce green hydrogen, because the conventional water electrolysis system is not completely renewable as it requires power from nonrenewable fossil fuel sources. This review emphasizes the strategies for solar-driven water electrolysis, including the construction of photovoltaic (PV)-water electrolyzer systems, PV-rechargeable energy storage devicewater electrolyzer systems with solar energy as the sole input energy, and photo...

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Coupling nonstoichiometric Cu_2−xSe with stable Cu₂Se berzelianite for efficient synergistic electrocatalytic hydrazine-assisted water splitting

Abstract: Electrochemical overall water splitting for sustainable hydrogen generation is severely hindered by anode water electrooxidation with sluggish kinetics, thus using thermodynamically favorable hydrazine oxidation reaction (HzOR) to substitute oxygen evolution...

Cited by 22 publications

References 54 publications

Constructing the coordination environment of Se–O in Cu_2−xSe for electrochemical hydrogen evolution

Constructing the coordination environment of Se–O in Cu_2−xSe for electrochemical hydrogen evolution

Hydrazine Oxidation Electrocatalysis

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

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Coupling nonstoichiometric Cu2−xSe with stable Cu2Se berzelianite for efficient synergistic electrocatalytic hydrazine-assisted water splitting

Abstract: Electrochemical overall water splitting for sustainable hydrogen generation is severely hindered by anode water electrooxidation with sluggish kinetics, thus using thermodynamically favorable hydrazine oxidation reaction (HzOR) to substitute oxygen evolution...

Cited by 22 publications

References 54 publications

Constructing the coordination environment of Se–O in Cu2−xSe for electrochemical hydrogen evolution

Constructing the coordination environment of Se–O in Cu2−xSe for electrochemical hydrogen evolution

Hydrazine Oxidation Electrocatalysis

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Contact Info

Product

Resources

About

Coupling nonstoichiometric Cu_2−xSe with stable Cu₂Se berzelianite for efficient synergistic electrocatalytic hydrazine-assisted water splitting

Constructing the coordination environment of Se–O in Cu_2−xSe for electrochemical hydrogen evolution

Constructing the coordination environment of Se–O in Cu_2−xSe for electrochemical hydrogen evolution