INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Shengming Liu,Yu Gu,Jia Kang,Jiaomei Zhang,Siyuan Liu,Huan Yang,Xinghua Zhu,Mei Ming
Replacing the sluggish anodic oxygen evolution reaction (OER) with the sulfide oxidation reaction (SOR), which possess a low thermodynamic oxidation potential, is an effective strategy to lower the energy consumption of the cathodic hydrogen evolution reaction (HER) while enabling the resource recovery of sulfide pollutants. However, enhancing the catalytic activity and stability of electrocatalysts for both the HER and SOR in sulfide-containing solutions remains a significant challenge. In this work, a nanoflower-like V-doped Ni 3 S 2 catalyst grown on nickel foam (V–Ni 3 S 2 /NF) was synthesized via a one-step hydrothermal method. Experimental results confirm that V doping effectively modulates the electronic structure of Ni 3 S 2 , thereby enhancing its intrinsic catalytic activity. As a consequence, the V–Ni 3 S 2 /NF-2 catalyst delivers an exceptionally low SOR overpotential of 0.283 V at a current density of 10 mA cm −2 , together with excellent long-term stability. In-situ Raman analysis unveils a stepwise sulfide oxidation pathway, where S 2− species are initially converted to short-chain polysulfides and subsequently oxidized to S 8 . Moreover, the electrode exhibits outstanding bifunctional characteristics toward HER and SOR, requiring only 0.442 V to simultaneously achieve hydrogen evolution and sulfide removal at 10 mA cm −2 , which is substantially lower than the energy required for overall water splitting (1.56 V). Prepared through a straightforward binder-free and noble-metal-free strategy, the V–Ni 3 S 2 /NF-2 catalyst combines low cost with potential practical applicability, presenting a promising approach for concurrent hydrogen production and sulfide valorization.
研究领域:
电催化
·
环境修复
·
能源材料
·
无机化学
·
可持续化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Xin Ao,Zhaoyin Wen,Xiangwei Wu,Tian Wu,Meifen Wu
The role of the Ni3S2 layer on Ni particles in the electrochemical performance of Na/NiCl2 cells with the addition of sulfur into the cathode is studied. It was found that the Ni3S2 layer could be in situ generated on nickel particles and exhibit a self-repairing function during cycling when sulfur exists in the cathode due to the reaction between the sulfur and nickel particles. The self-repairing function of the Ni3S2 layer could enhance the blocking effect and improve the battery cycle performance. The capacity of the cell with the optimum amount of sulfur (with self-repairing function) after 50 cycles is about 12% greater than that of the cell with the optimum level of Ni3S2 (without self-repairing function). The effect of the self-repairing function of the Ni3S2 layer is determined by the amount of sulfur in the cathode.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 7
·3834-3844
·
IF 11.301
Daying Guo,Zihe Zhang,Bin Xi,Zhisheng Yu,Zhen Zhou,Xi'an Chen
Reported herein is the investigation of a unique cathode candidate for Li–S batteries, i.e. Ni3S2/(N, S)-RGO-type hybrid materials, which are expected to optimize battery performance by elevating the utilization of sulfur and chemically confining the adsorption/diffusion of polysulfide. Versatile structural and compositional characterizations confirmed the uniform growth and strong chemical coupling of nanostructured Ni3S2 on the N/S co-doped RGO matrix. Rich physical and chemical properties were revealed, namely, the large specific surface area and pore volume, which are beneficial for polysulfide capture, and the 3D conductive network supporting rapid charge transfer to the Ni3S2-polysulfide interface to improve the intrinsic equilibrium of the polysulfide. Specifically, the integration of ∼28.2 wt% of Ni3S2 produced a highly pleated composite with the largest BET specific surface area (618 m2 g−1) and pore volume (1.73 cm3 g−1) among the hybrids studied. This typical material also performed the best in the battery test, recording ultra-high cycling stability over 1000 cycles at the current density of 3C with the capacity decay of 0.023% per cycle. As the sulfur loading per unit area became as dense as 5.8 mg cm−2, the specific capacities were measured as 6.72 mA h cm−2 (at 0.05C), while the capacity retention for the 200-cycle test (at 1C) was still preserved above 72.5%.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2024
·Vol. 14
·期 17
·1445
·
IF 4.4
Jingchao Zhang,Yingping Bu,Zhuoyan Li,Ting Yang,Naihui Zhao,Guanghui Wu,Fujing Zhao,Renchun Zhang,Daojun Zhang
Oxygen evolution reaction (OER) is a critical half-reaction in electrochemical overall water splitting and metal–air battery fields; however, the exploitation of the high activity of non-noble metal electrocatalysts to promote the intrinsic slow kinetics of OER is a vital and urgent research topic. Herein, Fe-doped Ni3S2arrays were derived from MOF precursors and directly grown on nickel foam via the traditional solvothermal way. The arrays integrated into nickel foam can be used as self-supported electrodes directly without any adhesive. Due to the synergistic effect of Fe and Ni elements in the Ni3S2structure, the optimized Fe2.3%-Ni3S2/NF electrode delivers excellent OER activity in an alkaline medium. The optimized electrode only requires a small overpotential of 233 mV to reach the current density of 10 mA cm−2, and the catalytic activity of the electrode can surpass several related electrodes reported in the literature. In addition, the long-term stability of the Fe2.3%-Ni3S2/NF electrode showed no significant attenuation after 12 h of testing at a current density of 50 mA cm−2. The introduction of Fe ions could modulate the electrical conductivity and morphology of the Ni3S2structure and thus provide a high electrochemically active area, fast reaction sites, and charge transfer rate for OER activity.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 4
·655
·
IF 5.719
Wenjing Yu,Bo Liu,Xiaojiao Zhao
To develop high-performance microwave absorption materials with the features of lightweight, thin thickness, broad bandwidth, and strong absorption, an ultralight Ni3S2@N, S-codoped graphene aerogel with a density of 13.5 mg/cm3has been fabricated by the use of metal-organic frameworks (MOFs) to directly initiate the gelation of graphene oxide strategy. In such a strategy, dual-functional 1D Ni-MOF nanorods not only act as the gelation agent but also afford the doping elements (N and S) originated from the organic species and the precursor for metal sulfide. Due to the synergistic effects of good impedance matching and multiple losses, the optimal reflection loss (RL) of as-prepared Ni3S2@N, S-codoped graphene aerogel reaches −46.9 dB at 17.1 GHz with only 2.0 mm and ultralow filling content (1.75 wt%). The maximum effective absorption bandwidth (EAB) reaches 6.3 GHz (11.7–18.0 GHz) at 2.38 mm, covering the whole Ku band. Moreover, the value of EAB with the RL less than −30 dB can be tuned to 12.2 GHz (5.8–18 GHz) at the absorber thickness ranging from 1.9 to 5.0 mm. This work provides insight for rational design and fabrication of multicomponent-containing graphene aerogels, showing the potential application in lightweight and high-performance microwave absorption.
研究领域:
材料科学
·
电磁学
·
化学工程
✓ 已验证
DOI
高影响因子
Energy Material Advances
·
2023
·
IF 12.9
Jiao Xiang,Yuanduo Qu,Yanxin Zeng,Senyu Hu,Huiling Xu,Hong Xia,Muwei Ji,Lianfeng Duan,Fushen Lu
Lithium–sulfur batteries are considered important devices for the power of movable equipment, but there are still some challenges that limit their applications, such as how to obtain a cathode for high sulfide adsorption and rapid conversion. Here, a new strategy is proposed to enhance the performance of lithium–sulfur batteries by growing 3-dimensional hydrogen-substituted graphdiyne (HsGDY) layers on Ni foam via Glaser cross-coupling reaction to anchor MoS2/Ni3S2, enhancing the conductivity of host material of S. The results show that the 3-dimensional HsGDY framework enables the fast adsorption of lithium polysulfides and the Ni3S2/MoS2 performs as the reaction center with a low charge transfer resistance. The charge capacity of Ni@HsGDY/MoS2/Ni3S2 cell is up to 1,234.7 mAh·g−1 at the first circle, and the specific capacity keeps 486 mAh·g−1 after 500 cycles at a current density of 2 C. The incorporation of HsGDY into the cathode promotes the adsorption and the conversion of polysulfides, paving a path to obtain lithium–sulfur batteries with high energy density.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Shuaipeng Wang,Li Xu,Weixin Lu
Non-noble metal catalysts with high-performance are intensively exploited toward water electrolysis. Herein, we fabricate a novel Ni 3 S 2 @Co(OH) 2 heterostructure with a tentative method combining hydrothermal method with electrodeposition, in which the Ni 3 S 2 nanosheets are evenly integrated with Co(OH) 2 nanoparticles. Electrochemical tests reveal preeminent catalytic activities and durability on this heterostructure for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). It presents high catalytic activities of 110 and 257 mV at 10 mA cm −2 for HER and OER, respectively, in 1.0 M KOH solution. Moreover this bifunctional electrode requires only 1.61 V to reach 10 mA cm −2 and shows excellent durability when assembled as an electrolyzer, superior than that of Pt-C||IrO 2 . The promoted activities are benefited from the interfacial cooperation and synergistic effect between Ni 3 S 2 and Co(OH) 2 , because of which the charge-transfer ability is enhanced and surface reactivity is of furtherance. This work is of very profound significance on electrocatalysts for water splitting, specific performances: (1) This heterostructure is synthesized based on interface engineering. (2) The promoted performance is due to the synergistic effect of two onefold-components. (3) The catalysis activities for HER and OER can synchronously reach ideal states when it is used as bifunctional catalyst.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2020
·
IF 3.442
Lina Feng,Ping Yang,Wenqin Ling,Shaohua Wang,Jianjun Shi,Fengwu Wang
A hydrothermal method was used to prepare a hierarchical flower-like NiMoO 4 @Ni 3 S 2 composite on a three-dimensional Ni foam substrate, and the effects of different amounts of ethylene glycol in the precursor solution on the morphology and performance of Ni@NiMoO 4 @Ni 3 S 2 were investigated. The as-synthesized No-10/Ni 3 S 2 electrode exhibits a specific capacity up to 870 C g −1 at 0.6 A g −1 and excellent cycle stability (capacity retention of 81.2% after 8000 cycles). More importantly, in a hybrid supercapacitor with a No-10/Ni 3 S 2 as a positive electrode and activated carbon (AC) as a negative electrode (No-10/Ni 3 S 2 //AC), the energy density of 128.31 W h kg −1 at a power density of 7106.4 W kg −1 . As displayed, the performances make No-10/Ni 3 S 2 a promising candidate as high-performance electrode material for supercapacitors .
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2022
·Vol. 18
·期 43
·2106904
·
IF 15.153
Zhong Wu,Yanhui Feng,Zhenbo Qin,Xiaopeng Han,Xuerong Zheng,Yida Deng,Wenbin Hu
Development of efficient non-noble metal catalysts for water splitting is of great significance but challenging due to the sluggish kinetics of the hydrogen evolution reaction (HER) in alkaline medium. Herein, a bimetallic multi-level layered catalytic electrode composed of Ni 3 S 2 nanosheets with secondary Co-NiOOH layer of 3D porous and free-standing cathode in alkaline medium is reported. This integrated synergistic catalytic electrode exhibits excellent HER electrocatalytic performance. The resultant Ni 0.67 Co 0.33 /Ni 3 S 2 @NF electrode displays the highest HER activity with only overpotentials of 87 and 203 mV to afford current densities of 10 and 100 mA·cm −2 , respectively, and its Tafel slope is 80 mV·dec −1 . The chronopotentiometry operated at high current density of 50 mA·cm −2 shows negligible deterioration, indicating better stability of Ni 0.67 Co 0.33 /Ni 3 S 2 @NF electrode than Pt/C (20 wt.%). Such a desirable catalytic performance is attributed to the modification of physical and electronic structure that exposes abundant active sites and improves the intrinsic catalytic activity toward HER, which is also confirmed by electrochemically active surface area and X-ray photoelectron spectroscopy analysis. This work provides a strong support for the rational design of high-performance bimetallic electrodes for industrial water splitting.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FUEL
·
2025
·
IF 7.5
Xueling Wei,Xiangyu Zou,Qiguan Wang,Qiannan Liang,Youjun Huang,Taotao Ai,Wenhu Li,Linlin Dang,Sumin Wang
An in-situ prepared crassula perforata structure composing of Ni 3 S 2 nanosheets strung by NiTe nanorods at nickel foam (Ni 3 S 2 /NiTe/NF) is well-designed for seawater electrolysis. The crassula perforata structure provides more exposed Ni 3 S 2 /NiTe interfaces, and the gaps between Ni 3 S 2 nanosheets can accommodate the electrolyte solution, which not only boosts the electrolyte immersion/diffusion but induces strong electron transfer from NiTe to Ni 3 S 2 , to weaken the covalency of NiTe and lower the electronegativity of Ni 3 S 2 . Thus, during oxygen revolution reaction, the S species can be oxidized into sulfate layer and Ni species are transformed into nickel (oxy)hydroxides, with tailored d-band center and smoothed absorption/desorption of oxygen intermediates. Importantly, the in-situ generated sulfates play a crucial role in suppressing chloride corrosion. In addition, the gaps between Ni 3 S 2 sheets provide enough space for the structural change of materials during water splitting, thus improving the catalytic stability. The Ni 3 S 2 /NiTe/NF (+, −) electrolyzer only needs 2.1 V to drive a current density of 1.0 A cm −2 for 100 h in 6 M KOH mixed seawater at 60 °C. In this work, the synthesis of crassula perforata structured Ni 3 S 2 /NiTe/NF electrode provides a novel approach for the development of highly efficient and robust catalysts for industrial seawater electrolysis.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2023
·
IF 6.2
Xinying Guo,Lian Wu,Longbin Li,Jingfei Zhang,Chen Wu,Liwen Wang,Yizhong chen,Wei Zeng
Alkaline nickel-zinc (Ni-Zn) batteries are considered as one of the most promising rechargeable battery systems. However, the poor cycling stability of the Ni cathode limit their service life. Herein, a conductive polymer (PEDOT:PSS) encapsulated Ni 3 S 2 hollow nanorod structure via facile immersion is proposed. PEDOT:PSS coating layer can not only provide adhesion for Ni 3 S 2 nanorods to prevent Ni 3 S 2 from falling off the substrate during cycling, but also facilitate electron transfer via the complete conductive pathway. The hollow nanorods structure of Ni 3 S 2 is beneficial to mitigate the volume change and accelerate the rapid transport of ions. Besides, a gel electrolyte with double network porous structure in our battery system is well designed. The ionic association of sodium alginate on Zn 2+ can effectively reduce the activity of bound water molecules in the solvation sheath of Zn 2+ , inhibit the side reaction and dendrite generation through the ion-confinement effect, to achieve uniform deposition of zinc ions . As a consequence, the as-designed quasi-solid-state flexible Ni-Zn battery demonstrates a high specific capacity of 1.06 mAh cm −2 (276.04 mAh g −1 ) at 8 mA cm −2 and an ultra-long cycle stability over 10,000 cycles with a capacity retention of 88.96% at 30 mA cm −2 .
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Yuanju Qu,Mingyang Yang,Jianwei Chai,Zhe Tang,Mengmeng Shao,Chi Tat Kwok,Ming Yang,Zhenyu Wang,Daniel Chua,Shijie Wang,Zhouguang Lu,Hui Pan
Ni3S2 nanowire arrays doped with vanadium(V) are directly grown on nickel foam by a facile one-step hydrothermal method. It is found that the doping can promote the formation of Ni3S2 nanowires at a low temperature. The doped nanowires show excellent electrocatalytic performance toward hydrogen evolution reaction (HER), and outperform pure Ni3S2 and other Ni3S2-based compounds. The stability test shows that the performance of V-doped Ni3S2 nanowires is improved and stabilized after thousands of linear sweep voltammetry test. The onset potential of V-doped Ni3S2 nanowire can be as low as 39 mV, which is comparable to platinum. The nanowire has an overpotential of 68 mV at 10 mA cm–2, a relatively low Tafel slope of 112 mV dec–1, good stability and high Faradaic efficiency. First-principles calculations show that the V-doping in Ni3S2 extremely enhances the free carrier density near the Fermi level, resulting in much improved catalytic activities. We expect that the doping can be an effective way to enhance the catalytic performance of metal disulfides in hydrogen evolution reaction and V-doped Ni3S2 nanowire is one of the most promising electrocatalysts for hydrogen production.
研究领域:
材料科学
·
催化化学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）