Catalysts
·
2024
·Vol. 14
·期 6
·364
·
IF 3.8
Qiaoting Cheng,Hu Ding,Lang Chen,Jiatong Dong,Hao Yu,Shen Yan,Hua Wang
The two-electron oxygen reduction reaction (2e−ORR) has emerged as an attractive alternative for H2O2production. Developing efficient earth-abundant transition metal electrocatalysts and reaction mechanism exploration for H2O2production are important but remain challenging. Herein, a nitrogen-doped carbon-coated NiSe2(NiSe2@NC) electrocatalyst was prepared by successive annealing treatment. Benefiting from the synergistic effect between the NiSe2nanoparticles and NC, the 2e−ORR activity, selectivity, and stability of NiSe2@NC in 0.1 M HClO4was greatly enhanced, with the yield of H2O2being 4.4 times that of the bare NiSe2nanoparticles. The in situ Raman spectra and density functional theory (DFT) calculation revealed that the presence of NC was beneficial for regulating the electronic state of NiSe2and optimizing the adsorption free energy of *OOH, which could enhance the adsorption of O2, stabilize the O-O bond, and boost the production of H2O2. This work provides an effective strategy to improve the performance of the transition metal chalcogenide for 2e−ORR to H2O2.
研究领域:
材料科学
·
电化学
·
催化反应
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Katam Srinivas,Fei Ma,Yanfang Liu,Ziheng Zhang,Yu Wu,Yuanfu Chen
It is crucial but challenging to promote sluggish kinetics of oxygen evolution reaction (OER) for water splitting via finely tuning the hierarchical nanoarchitecture and electronic structure of the catalyst. To address such issues, herein we present iron-doped Ni3Se4/NiSe2 heterostructure-embedded metal–organic framework-derived mesoporous tubes (Ni-MOF-Fe-Se-400) realized by an interfacial engineering strategy. Due to the hierarchical nanoarchitecture of conductive two-dimensional nanosheet-constructed MOF-derived mesoporous tubes, coupled with fine tuning of the electronic structure via Fe-doping and interactions between Ni3Se4/NiSe2 heterostructures, the Ni-MOF-Fe-Se-400 catalyst delivers superior OER activity: it requires only a low overpotential of 242 mV to achieve 10 mA cm–2 (Ej=10), surpassing the benchmark RuO2 (Ej=10 = 286 mV) and displays exceptional durability in the chronoamperometric i–t test with a small current decay (6.2%) after 72 h. Furthermore, the water splitting system comprises a Ni-MOF-Fe-Se-400 anode and a Pt/C cathode requires a low cell voltage of 1.576 V to achieve Ej=10 with an excellent Faradic efficiency (∼100%), outperforming the RuO2–Pt/C combination. This work presents a novel interfacial engineering strategy to finely adjust the morphology and electronic structure of the non-noble metal-based OER catalyst via a facile fabrication method.
研究领域:
材料科学
·
电化学
·
纳米技术
·
催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Zhihao Xu,Qinzhi Wang,Ruixia Li,Hui Zhangsun,Mengna Dong,Li Wang
As glucose (Glu) is an essential substance for metabolism as well as a symbol to diagnose diabetes, the demand of Glu sensors has increased significantly in recent decades. In this work, a hierarchical Ni-based electrochemical enzyme-free Glu sensor, namely, NiSe2/CNR (carbon nanorod), was engineered through a facile thermal treatment using dimethylglyoxime dinickel salt with selenium (Se) powder. The prepared NiSe2/CNR not only subtly introduces a hierarchical structure with rod-like carbon nanorods and rock-like NiSe2 nanoparticles, which are extremely helpful in offering a greater catalytic activity area and more catalytic active sites, but also incorporates the Se element to increase the inherent activity. The fabricated NiSe2/CNR exhibits distinguished performance for Glu detection in alkaline electrolytes with linear ranges of 0.5–411 μM and 411 μM to 6.311 mM, high sensitivities of 3636 μA mM–1 cm–2 at low concentrations, and 2121 μA mM–1 cm–2 at high concentrations, as well as a low detection limit of 380 nM (S/N = 3). It also possesses favorable reproducibility, stability, and long-term storage capacity. The practical feasibility of NiSe2/CNR was also validated by detecting Glu in human serum. Moreover, the prepared hierarchical NiSe2/CNR is of general interest for the construction of hierarchical Ni-based sensors.
研究领域:
材料科学
·
电化学
·
生物传感器
·
纳米技术
·
分析化学
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 38
·2204833
·
IF 19.924
Xiangyang Gao,Yuanzheng Zhang,Shukun Yin,Yiqian Mao,Jinzheng Gui,Jingxing Li,Yafei Zhao,Chengliang Sun,Shishang Guo
Exploring efficient energy systems with integrated energy harvesting and storage toward sustainable power sources is an extremely promising solution for alleviating the energy crisis but nevertheless remains an arduous challenge. Here, a high-efficient self-charging power system (SCPS) by integrating solid-state asymmetric supercapacitors device (SASD) and rotational triboelectric nanogenerator (RTENG) to achieve efficient energy harvesting and storage is reported. Dual redox active sites Ni 2 P/NiSe 2 heterostructure is homogeneously inlaid on N-C (N-C@Ni 2 P/NiSe 2 ) via an in situ phosphoselenization, which achieves the maximum exposure of active sites and prevents the aggregation of nanoparticles. The ingeniously designed N-C@Ni 2 P/NiSe 2 heterostructure features high activity dual redox sites, well-defined heterointerface, and stable superhighway conductive support, which facilitates high electrochemical reaction efficiency, accelerated reaction kinetics, and enhanced electrochemical stability, thus achieving high capacitance and excellent stability. Meanwhile, the SASD delivers high energy density and long lifespan. Furthermore, the RTENG exhibits high output performance, enabling efficient energy harvesting. The SCPS can reach a voltage of 3.8 V within 40 s, and continuously power electronics. It is believed that the proposed survey based on the design and integration of dual redox active sites heterostructure will offer a new prospect for next-generation sustainable power sources.
研究领域:
材料科学
·
能源存储与转换
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Shuai Liu,Fumin Wang,Jiawei Wang,Zheng Wang,Xinyuan He,Tongxue Zhang,Zhiwei Zhang,Qian Liu,Xijun Liu,Xubin Zhang
Efficient and cost-effective catalysts are essential to drive the oxygen evolution reaction (OER) in sustainable hydrogen production through water splitting. In this study, we introduce an innovative strategy aimed at constructing heterogeneous structure that form abundant Fe 2 O 3 /NiSe 2 interfaces on the FeOOH surface. The resulting catalyst exhibits extraordinary performance with an excellently low overpotential of 169 mV at 10 mA cm −2 . Notably, this catalyst also demonstrates impressive long-term stability in alkaline seawater . Compared to traditional heterogeneous catalysts with core-shell structures, Fe 2 O 3 /NiSe 2 possesses a closely heterogeneous interface, which plays a role in modulating the interface electron. Supported by complementary spectroscopy and theoretical calculations, it has been further demonstrated that the distinctive Fe-O-Ni-Se structure can effectively modulate the electronic state of Ni, thereby enhancing the adsorption of oxygen-containing intermediates and facilitating oxygen desorption. Overall, this research presents a promising avenue for enhancing the electrocatalytic performance by amplifying active sites at interfaces.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Jiao Chen,Chao Cai,Yunfei Sun,Bai Sun,Hongyan Wang,Yongliang Tang,Yuanzheng Chen
Electrolytic water splitting (EWS), regarded as a sustainable and promising strategy for hydrogen production, has received huge attention in recent years. However, the practical application of EWS is greatly hindered by the sluggish kinetics of the oxygen evolution reaction (OER). Herein, we proposed an efficient strategy for the synthesis of hierarchical hollow nickel selenide with significant HER and OER electrocatalytic activity. The as-synthesized NiSe 2 possesses low overpotential of ∼85 mV at the current density of 10 mA/cm 2 for the HER in 0.5 M H 2 SO 4 and ∼270 mV for OER in 1 M KOH. Importantly, when employed into full water splitting on membrane electrode assembly, it merely requires an ultralow voltage of 1.73 V to achieve the current density of 1 A/cm 2 , outperforming most of the reported other Ni/Ni-Se based structures. Density Functional Theory (DFT) simulations confirm that the hierarchical hollow NiSe 2 structure facilitates the reduction of the Gibbs free energy change of H- and O-containing intermediates in the HER/OER process, which promotes the formation of intermediates and thus accelerates the catalytic kinetics. This work offers an important structure engineering route to develop high catalytic performance materials and sheds light on the promotion of electrocatalytic activity for clean energy utilization.
研究领域:
材料科学
·
能源化学
·
理论计算
✓ 已验证
产品关联
DOI
高影响因子
Catalysts
·
2025
·Vol. 15
·期 9
·876
·
IF 4
Lijie Sun,Yaqun Mi,Bo Li
Doping a third element or external functional components into binary alloy nanostructured catalysts typically significantly enhances their electrocatalytic performance. This study demonstrates that doping nickel selenide (NiSe2) with approximately10at%iron (Fe) is an effective strategy for improving its oxygen evolution reaction (OER) catalytic activity. The resulting Ni0.9Fe0.1Se2undergoes a structural transformation from its original nanodendritic morphology and exhibits outstanding OER catalytic performance in alkaline media. It achieves a low overpotential of231mVat a current density of10mAcm−2, which is approximately30%lower than that of NiSe2(301mV). The Tafel slope of Ni0.9Fe0.1Se2is116mVdec−1. However, degradation observed after 5 h of stability testing suggests that the doping process requires further optimization.
研究领域:
材料科学
·
电化学
·
纳米技术
·
催化
·
能量转换
✓ 已验证
产品关联
DOI
高影响因子
CATALYSIS LETTERS
·
2026
·Vol. 156
·期 3
·65
·
IF 2.5
Hu Yanan,Yang Dawei,Li Qiaoling,Yu Chengcheng
The insufficient catalytic efficiency of non-noble metal materials in the alkaline hydrogen evolution reaction (HER) remains a critical challenge limiting their practical application. Herein, a W-modified NiSe 2 -based catalyst (Ni-W-Se/NF) was in situ fabricated on nickel foam through a simple potentiostatic electrodeposition strategy. The incorporation of W effectively modulates the microstructure of NiSe 2 -based catalysts, resulting in a significantly enlarged electrochemical active surface area for Ni-W-Se/NF. Benefiting from the synergistic effects of W-induced electronic modulation and morphology optimization, the Ni–W–Se/NF electrode exhibits enhanced HER performance in 1 M KOH, delivering a low overpotential of 64 mV at − 10 mA cm −2 . Moreover, the catalyst demonstrates good electrochemical durability, maintaining stable activity during continuous operation for 50 h. Overall, these findings highlight the potential of this catalyst as an economically viable cathode for alkaline water electrolysis. Graphical
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2021
·Vol. 13
·期 42
·17846-17853
·
IF 7.79
Ting Li,Qing Zhang,Xiao Hu Wang,Juan Luo,Li Shen,Hong Chuan Fu,Fei Gu,Nian Bing Li,Hong Qun Luo
Electrochemical water splitting is widely studied in the hope of solving environmental deterioration and energy shortage. The design of inexpensive metal catalysts exhibiting desired catalytic performance and durable stability for efficient oxygen evolution is the pursuit of sustainable and clean energy fields. Herein, a three-dimensional (3D) flower-like NiSe2 primary structure, modified with highly dispersed CuSe2 nanoclusters as the secondary structure, is obtained by regulating the growth trend of the nanosheets. Benefiting from the metallicity of selenides and the formation of a heterogeneous interface, NiSe2@CuSe2/NF shows comparable performance toward the oxygen evolution reaction (OER) in an alkaline environment. Upon regulating the synthesis conditions, the catalyst exhibits its optimal performance with ultralow overpotential for the OER when the Ni/Cu molar ratio is 1 : 0.2 and the hydrothermal temperature and hydrothermal time are 200 °C and 6 h, respectively. It provides a current density of 10 mA cm−2 when a potential of 201 mV is applied without iR compensation. In this work, the hierarchical heterostructures of NiSe2 and CuSe2 are synthesized, which exhibit high electrocatalytic activity towards the oxygen evolution reaction and provides a new possibility for the extensive application of copper-based compounds in advanced energy fields.
研究领域:
材料科学
·
能源化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Xiao-Man Cao,Yi-Feng Shao,Yan-Cun Dong,Qingguo Zhang,Hao Ge,Daliang Liu,Qiong Wu,Zhi-Jia Sun
The unique structure and strong interaction of multiphase hybrid materials have garnered significant attention as prospective candidates for electrode materials in the realm of energy storage. The present study presents a rational design of a functional NiSe 2 -CoSe 2 /N, B double-doped carbon hybrid composite (NCS/C NB ), resulting in the emergence of various novel cooperative regulatory mechanisms involving: (i) the heterogeneous structure of NiSe 2 and CoSe 2 generates built-in electric fields to increase electron mobility; (ii) the incorporation of polyatomic double-doped carbon (N, and B) expedites electron transfer rate; intriguingly, (iii) ionic liquids not only serve as polyatomic dopants in the reaction system but also influence the microstructure of the composite. Benefiting from these synergistic effects, the NCS/C NB hybrid exhibits remarkable charge storage capacity and rapid electrochemical kinetics, driven by its multi-fold hollow structure and multicomponent cooperative modulation. The capacity (682 C g −1 at 1 A g −1 ) and rate performance of NCS/C NB surpass those of other monometallic selenides (NiSe 2 /N, B co-doped carbon (NS/C NB ) and CoSe 2 /N, B co-doped carbon (CS/C NB )) within the same system. In the meantime, an asymmetric device using NCS/C NB as the cathode material performs admirably, displaying an exceptional energy density (51.3 Wh kg −1 at 1.28 kW kg −1 ). The present research provides valuable perspectives for the innovative design and fabrication of advanced electrode materials exhibiting exceptional electrochemical properties. We firmly believe that hollow structures featuring multiple cooperative regulatory mechanisms and abundant folds will garner significant attention.
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
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2025
·
IF 4.1
Xiaoyan Yan,Shaohua Lv,Jiangjiang Li,Fei Wang,Xinxin Zhao,Xiaohua Zhang,Zhenxiang Cheng
This study focuses on the novel core-shell structured bimetallic selenide CoSe 2 @NiSe 2 /NC., and explores its application in Magnesium-ion batteries (MIBs). Through an efficient electrochemical reaction mechanism, CoSe 2 @NiSe 2 /NC material exhibits excellent performance during charge-discharge cycles, especially in terms of high-rate capability and long cycle stability. At a current density of 0.1 A g −1 , the initial specific capacity of CoSe 2 @NiSe 2 /NC material reaches 380 mAh g −1 , significantly higher than that of CoSe 2 /NC and NiSe 2 /NC materials. Additionally, CoSe 2 @NiSe 2 /NC material demonstrates favorable capacitive and diffusive contributions at different scan rates, with a stable and predictable charge transfer process, reflecting good charge/ion transport capabilities. The outstanding electrochemical performance of the CoSe 2 @NiSe 2 /NC composite is attributed to its unique core-shell architecture, which facilitates efficient charge transport and ion diffusion through interfacial coupling and electronic modulation between the CoSe 2 core and NiSe 2 shell. The material not only effectively buffers volume changes but also suppresses the pulverization and aggregation of the active material, further enhancing the structural stability of the material during long-term charge-discharge processes. Therefore, CoSe 2 @NiSe 2 /NC material provides a new research direction for efficient energy storage systems and holds significant importance for the design of future high-performance battery materials.
研究领域:
材料科学
·
电化学
·
能量存储
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Muhammad Sanaullah Shah,Zhang Zhenyu,Shi Jiangwei,Xie Wanguo,Wang Shuiying,Hongying Hou,Zuo Xiaoqing,Muhammad Zia Ullah Shah
Development of high-performance supercapacitors that have better energy storage capacity is necessary in meeting the needs of the future energy storage technologies. NiSe 2 -CoS composite electrode was also produced and incorporated in an asymmetric supercapacitor structure using activated carbon (AC) as negative electrode. The NiSe 2 -CoS||AC device was able to operate steadily over a potential window of 1.5 V with better electrochemical characteristics being shown by the synergistic interaction between NiSe 2 and CoS being observed in electrochemical impedance spectroscopy (EIS) analysis where minimal internal resistance was observed and therefore efficient electron and ion movement within the electrode material. The NiSe 2 -CoS||AC supercapacitor has been found to be a good candidate to be used in high-performance supercapacitors in the future; this is because of its high capacitance, rate efficiency, and high stability of its operation during discharge-charge cycles, which resulted in a high energy density of 66.3 Wh/kg at a power density of 3665 W/kg. This work demonstrates that NiSe 2 -CoS nanocomposites are strong contenders for use in future high-performance supercapacitor systems, due to their excellent energy storage capability, rate efficiency, and long-term operational reliability.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）