ChemElectroChem
·
2016
·Vol. 3
·期 5
·764-769
·
IF 3.506
Peng Long,Qiang Xu,Gang Peng,Xiayin Yao,Xiaoxiong Xu
Graphical Battery all stars : 1D nanostructured NiS is demonstrated to be a promising active material for all-solid-state lithium batteries. Lithium metal, rather than the Li–In alloy, is employed as the anode of batteries to improve the energy density. The obtained all-solid-state lithium batteries exhibit excellent rate capability and cycling stability, with discharge specific capacities of 338 and 243 mAh g −1 after 100 cycles at current densities of 250 and 500 mA g −1 , respectively. Rate capability and cycling stability are the great challenges of all-solid-state lithium batteries, owing to the low lithium ion transfer kinetics in solid materials and poor interfacial compatibility between electrodes and electrolytes. In this work, one-dimensional nanostructured NiS and lithium metal are firstly employed in Li/70 % Li 2 S–29 % P 2 O 5 –1 % P 2 O 5 /Li 10 GeP 2 S 12 /NiS all-solid-state lithium batteries, exhibiting excellent rate capability and cycling stability. NiS nanorods, with a diameter of 20–50 nm and length of 2–3 μm, are prepared in a controllable manner by using a solvothermal method. Electrochemical performance measurements show that the reversible discharge capacities of NiS nanorod electrodes can be as high as 670, 401, and 299 mAh g −1 at the current densities of 100, 250, and 500 mA g −1 , respectively. Also, it displays excellent cycling stability, showing reversible discharge capacities up to 338 and 243 mAh g −1 after 100 cycles at current densities of 250 and 500 mA g −1 , respectively . The electrochemical reaction mechanism of the NiS nanorods in all-solid-state lithium batteries is revealed by combining cyclic voltammetry and ex situ XRD measurements in detail, showing a reversible conversion reaction that is almost identical with that in the traditional lithium-ion batteries that utilize liquid electrolytes.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Shang Wu,Xuexue Yang,Tao Cui,Qiaoliang Feng,Sheng Zhou,Xin Xu,Huanlei Zhao,Lan Wu,Yuan He,Quanlu Yang
The tubular-like NiS/Mo 2 S 3 microspheres as electrode material are designed and synthesized by solvothermal method , and match with activated carbon to build a new asymmetric supercapacitor , improving specific energy and cycle life of asymmetric supercapacitors. The NiS/Mo 2 S 3 composite material of tubular-like microspheres possesses excellent specific capacity (199 mAh g −1 at a current density of 1 A g –1 ) and long cycle life (76% of initial capacity after 3000 cycles). In addition, a new asymmetric supercapacitor (ASC) based on NiS/Mo 2 S 3 (positive electrode) and AC (negative electrode) is fabricated, which have high energy storage and excellent cycle stability. The NiS/Mo 2 S 3 -2//AC ASC possesses high specific energy (31.2 Wh Kg −1 ) and specific power (850 W Kg −1 ), its specific capacity still maintains 81.3% after 10,000 cycles. Therefore, the tubular-like NiS/Mo 2 S 3 microspheres may enrich the material system related to nickel-molybdenum bimetal for SCs.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Dingcheng Sun,Le Zhang,Shengjie Wei,Xu Zhang,Haiyang Xu,Xuan Tong,Xu Ji,Yue Yang
The development of durable, high-performance electrocatalysts capable of sustaining industrial-level current densities is critical for advancing alkaline water electrolysis. In this work, we present a hierarchical Co 9 S 8 /NiS heterojunction directly grown on nickel foam via hydrothermal and controlled sulfurization process. The self-supported electrode delivers low overpotentials of 260 mV (OER) and 40 mV (HER) at 10 mA cm −2 in 1 M KOH. Long-term stability tests of OER and HER respectively confirm 95 % and 96 % current retention at 100 mA cm −2 over 30 h. When employed in a two-electrode configuration, the Co 9 S 8 /NiS@NF electrode pair achieves 10 mA cm −2 overall water splitting at just 1.38 V, outperforming most reported transition-metal sulfide systems. Comprehensive structural and spectroscopic analyses reveals that intimate electronic coupling at the Co 9 S 8 /NiS interface, together with abundant sulfur vacancies, synergistically optimizes charge distribution and lowers kinetic barriers. Moreover, the integrated nano-flower and nano-needle morphology of self-supporting integrated electrode provides an expanded electrochemically active surface area and efficient mass-transport channels. This dual-modulation strategy—combining heterojunction engineering with defect chemistry—provides a scalable path for designing non-precious-metal electrocatalysts that meet the demands of practical hydrogen production.
研究领域:
电化学
·
材料科学
·
纳米技术
·
能量转换
·
催化
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 52
·期 6
·1680-1686
·
IF 4.569
Xinyao Ding,Mingyi Zhang,Xin Chang,Xuejiao Zhou
The energy industry is placing more and more emphasis on the need for effective and affordable electrocatalysts for hydrogen evolution reactions (HER). In this work, an iron-doped NiS/Ni(OH)2/CC composite material was synthesized by simple hydrothermal sulfurization processes of bimetallic Prussian blue analogue (PBAs) precursors grown in situ on three-dimensional (3D) Ni(OH)2 nanosheets. The overpotential can be 103 mV to attain current densities of 10 mA cm−2. The excellent catalytic activity of Fe-NiS/Ni(OH)2/CC is because of the unique 3D structure and the uniform doping of iron caused by the in situ growth of PBA, as well as the high conductivity of the self-supported electrode carbon cloth.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2025
·
IF 11
Xu Hong-Quan,Meng Xiang-Dong,Li Bai-Zhi,Gao Ming
Surface-enhanced Raman spectroscopy (SERS) is a highly sensitive analytical technique extensively employed in bioanalysis, chemical sensing, and environmental monitoring. Transition metal sulfides, such as molybdenum disulfide (MoS 2 ) and nickel sulfide (NiS), exhibit significant potential as SERS substrates, but their performance is often constrained by limited exposure of active sites and inefficient charge transfer, especially in complex sample matrices. In this study, we address these challenges by employing a hydrothermal strategy to synthesize amorphous MoS 2 nanoshells in an urchin-like MoS 2 -NiS core–shell structure grown on nickel foam (A-MoS 2 /NiS/NF). Further enhancement was realized via neodymium doping, yielding the x Nd-A-MoS 2 /NiS/NF. The optimized 0.015Nd-A-MoS 2 /NiS/NF substrate demonstrated a high enhancement factor (EF) of 1.56 × 10 9 for methylene blue (MB) and a detection limit as low as 10 –12 M. Density functional theory (DFT) calculations indicate that neodymium doping substantially increases the density of states (DOS) at the Fermi level, thereby enhancing charge transfer and amplifying the Raman signal. The 0.015Nd-A-MoS 2 /NiS/NF substrate also exhibited high sensitivity in detecting melamine in real milk samples, confirming its practical applicability. By effectively addressing the challenges of active site exposure and charge transfer in MoS 2 and NiS-based SERS substrates, this work significantly advances the practical application of transition metal sulfides in SERS. This development paves the way for the broader deployment of these materials in environmental and bioanalytical detection, presenting a promising strategy for improving the sensitivity and versatility of SERS-based sensors. Graphical abstract
研究领域:
分析化学
·
材料科学
·
纳米科技
·
生物传感
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环境监测
·
食品安全
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2025
·Vol. 17
·期 7
·876
·
IF 4.9
Eman M. Abd El-Monaem,Jawaher Y. Al Nawah,Mohammed Salah Ayoup,Abdelazeem S. Eltaweil
Herein, a heterogeneous Fenton-like catalyst was designed by immobilizing iron oxide (FeS) and nickel sulfide (NiS) on the surface of β-cyclodextrin (β-CD), creating a NiS/FeS@β-CD composite for degrading triphenylmethane cresol red dye. Varied instruments were used to study the physical and chemical characteristics of the NiS/FeS@β-CD catalyst. The appropriate catalytic conditions of the Fenton-like degradation of cresol red by NiS/FeS@β-CD were identified, clarifying that the higher degradation % fulfilled 99.86% with an adsorption % of 27.44% at a cresol red concentration = 50 mg/L, NiS/FeS@β-CD dose = 0.01 g, pH = 3, processing temperature = 30 °C, H2O2concentration = 100 mg/L, and H2O2volume = 1 mL. The kinetic assessments depicted the preference of the second order to represent the Fenton-like degradation of cresol red by NiS/FeS@β-CD. The mechanistic proposition of the adsorption/Fenton-like degradation of cresol red was understood using a quenching test and XPS analysis. Finally, to confirm the durability of NiS/FeS@β-CD, a reusability test was proceeded on the catalyst for five adsorption/Fenton-like degradation runs, with identifying the leaching concentrations of nickel and iron from the catalyst by ICP-OES after each run.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Youlin Wu,Pengfei Zhu,Youji Li,Lijun Zhang,Zhiliang Jin
Owing to the creation of a large number of surface active sites, surface modification is an efficient strategy for improving the catalytic performances of photocatalysts. Herein, zero-dimensional (0D) p-type NiS species were developed in situ on the large surface of NiAl-LDH by controlled vulcanization. Importantly, the development of the 0D p-type NiS species not only enriched the active sites but also triggered the in situ formation of a NiS/NiAl-LDH p–n heterojunction due to NiAl-LDH, which was utterly underdeveloped in the vulcanization modification procedure. This undoubtedly accelerated the faster separation and migration of charge carriers and yielded improved photocatalytic hydrogen evolution. The optimum hydrogen production rate of the NiS/NiAl-LDH photocatalyst could reach 3408 μmol·g–1·h–1 using a 5 W LED simulation visible light, which was 52-fold that of NiAl-LDH. The design and construction of the in situ p–n heterojunction may provide a perspective for the formation of p–n heterojunction photocatalysts with a closer contact interface and highly enhanced photocatalytic activity.
研究领域:
材料科学
·
化学工程
·
催化
·
纳米技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yuanwu Liu,Huai Zhang,Weiming Song,Ying Zhang,Zhipeng Hou,Guofu Zhou,Zhang Zhang,Junming Liu
Improving water adsorption and hydrogen (H) atoms desorption capacities are critical issues for the hydrogen evolution reaction (HER) in alkaline media. Herein, a ReS 2 /NiS heterostructure was generated in situ on the surface of the nickel foam (NF) using a facile hydrothermal process. The combination of experimental and density functional theory (DFT) analyses revealed a charge transfer from NiS to ReS 2 , which directly promoted water adsorption on Ni sites in NiS as well as H desorption on S sites in ReS 2 . Moreover, the antioxidation capacity of the heterointerface in the catalyst improved. Therefore, the formed ReS 2 /NiS@NF delivered an excellent HER activity very close to that of commercial Pt/C at low current density with overpotential of 78 mV at 10 mA/cm 2 while remarkably outperforming Pt/C at high current densities. The ReS 2 /NiS@NF also exhibited remarkable stability at 150 mA/cm 2 . This work provides a strategy for designing excellent electrocatalysts based on NiS.
研究领域:
材料科学
·
理论化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Dongshu Sun,Tianyu Zhou,Guangbo Che,Chunbo Liu
The engineering and synthesis of g-C 3 N 4 -based photocatalysts with high utilization rate of charge carriers and extensive visible light responsive range is pivotal to alleviate the energy crisis. Herein, inosculating P-doped g-C 3 N 4 with NiS (NPCN) via the calcination-solvothermal method to establish 2D/2D Schottky-junction with interfacial P-Ni bond photocatalyst can achieve high-efficiency hydrogen production upon exposure to visible light, the 2-NPCN displays superior photocatalytic H 2 -release ability up to 299.6 μmol in the absence of cocatalysts, which is approximately 53.3 times higher than that of BCN (5.6 μmol). Not only that, the apparent quantum efficiency (AQE) of the reconstructed material is 11.7% at 420 nm. Noticeably enhanced photocatalytic HER activities accrue from the fact that P-doped g-C 3 N 4 can shorten the band gap for widening the visible light responsive range, and the synergistic effect of Schottky-junction and P-Ni chemical bond can increase the separation efficiency of electron-hole pairs and efficiently ameliorating the charge transfer dynamics. Moreover, the 2D/2D structure with large and tight contact interfaces can decrease the charge migration distance. In this work, the 2D/2D NPCN Schottky-junction photocatalyst reasonably designed provides a meaningful case for meeting the requirements for high-efficiency hydrogen production driven by solar energy.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
VACUUM
·
2024
·
IF 3.8
Bairui Tao,Xiangru Ren,XiaoJie Liu,Fengjuan Miao
The ZIF-67/NiS composite electrode was prepared on nickel foam (NF) matrix by hydrothermal method . NiS has been widely studied in sensors and supercapacitors due to its good electron transfer ability and good pseudocapacitor performance. Therefore, we prepared ZIF-67/NiS composite electrode. The synthesised ZIF-67/NiS composite electrode not only has certain electrochemical performance of battery type electrode, but also is sensitive to lactic acid (LA), and can be used as a non-enzymatic LA sensor and a dual-function material for supercapacitors . The detection limit of LA concentration in alkaline solution is 0.8 μM, and the sensitivity is 1.34 μA μM −1 cm −2 . Indicating that the electrode has good electrochemical sensing performance. The GCD test results show that the charging capacity of the ZIF-67/NiS is 2.5 times that of the ZIF-67. The ZIF-67/NiS composite has good cyclic performance, and the capacitance retention rate of the ZIF-67/NiS composite is 87% at 10 A/g current density .
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Advanced Fiber Materials
·
2022
·Vol. 4
·期 5
·1177-1190
·
IF 12.958
Zan Guangtao,Wu Tong,Dong Wenya,Zhou Junchen,Tu Teng,Xu Ruoxuan,Chen Yun,Wang Ying,Wu Qingsheng
Due to the lack of in-depth understanding about the folding issues of the electronic materials, it is a huge challenge to prepare a super-foldable and highly electrochemical faradic electrode. Here, inspired from from the fully nimble structures of cuit cocoons and cockscomb petals, with two-level biomimetic design, for the first time we prepared a super-foldable and electrochemically functional freestanding cathode, made of C-fiber@NiS-cockscomb (SFCNi). In virtue of its nimble biomimetic structures, SFCNi can remarkably sustain over 100,000 times, repeated true-folding without composite fibers fracture, functional matters detachment, conductivity degradation, or electrochemical performance change. The main mechanism behind these behaviors was disclosed by Real-time scanning electron microscopy and mechanical simulations, on the folding process. Results unveil that the cockscomb-like NiS with atomic thickness can deform freely due to the need of bending, and the cuit-cocoon-like SFCNi can generate an “ ε-shape ” folding structure at the crease. Such a smart self-adaptive deformation capability can effectively reduce the effect of stresses and local excessive deformations, so that the chemical bonds can preserve their interaction, and the material won’t fracture. This subtle and exceptional mechanical behavior realizes a super-foldable property. The two-level biomimetic design strategy is a novel method for fabrication of super-foldable composite electrodes and integrated multi-functional super-foldable devices. Graphical abstract
研究领域:
材料科学
·
电化学
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2020
·Vol. 13
·期 20
·4647
·
IF 3.057
Xu Chen,Yang Zhang,Yashuai Pang,Qiwei Jiang
To satisfy the high requirement of catalytic activity for efficient dye-sensitized solar cells (DSSCs), a novel nanoporous NiS film with inverse opal structure and outstanding electrocatalytic properties was prepared by a facile template-assisted electrodeposition method. The inverse opal structure makes the film have a larger specific surface area and more catalytic sites, thereby result to a higher electrocatalytic activity. Compared with the flat NiS/FTO electrode, this kind of nanoporous NiS film with inverse opal structure has higher catalytic activity and can be used as a cheap and efficient Pt-free electrode to replace the traditional Pt/FTO electrode. It is of great significance to reduce the cost and promote the wide application of DSSCs. This study opens up a new experimental exploration for further improving the catalytic activity of NiS electrode and the according photovoltaic efficiency of DSSCs. The template-assisted electrodeposition method proposed in this work provides a facile method for morphology control and an easy to be realized way to optimize the catalytic performance of the metal sulfides counter electrode.Keywords:electrocatalytic activity;nanoporous NiS film;template method;dye-sensitized solar cells;counter electrode
研究领域:
材料科学
·
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）