JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2025
·
IF 14.3
Linyin Huang,Xinyue Wei,Yuan Yu,Dongfeng Sun,Yanning Qu,Jianlong Wen,Xiaoya Yuan,Qingmei Su,Fangyou Meng,Gaohui Du,Youqing Wang,Bingshe Xu,Kai Wang
In NiP-based catalysts, although Ni 2 P and Ni 5 P 4 have relatively high catalytic activity, the catalytic performance of single-phase Ni 2 P or Ni 5 P 4 is still far from that of noble metal catalysts. The dual-phase heterojunction has better catalytic performance than single-phase materials due to its faster interface charge transfer rate and more active sites. The Ni 2 P/Ni 5 P 4 @CC heterostructural catalyst with oriented porous nanosheet arrays grown on carbon cloth (CC), was in-situ constructed through the controllable phase transition of Ni 2 P. By modulating the amount of P source (P-dependent) or the phosphating reaction time (Time-dependent), the degree of the Ni 2 P phase transition could be modulated, thus obtaining the Ni 2 P/Ni 5 P 4 @CC heterostructural catalyst with the required component ratio of Ni 2 P and Ni 5 P 4 . When the ratio of Ni 2 P and Ni 5 P 4 was 15.7:84.3, the Ni 2 P/Ni 5 P 4 @CC catalyst had the best catalytic performance. Its hydrogen evolution reaction (HER) overpotentials were only 139 and 87 mV overpotentials reaching −10 mA/cm 2 in 1 mol/L KOH and 0.5 mol/L H 2 SO 4 , respectively, which was much lower than that of the single-phase Ni 2 P@CC (base: 278 mV; acid: 123 mV) and Ni 5 P 4 @CC (base: 166 mV; acid: 106 mV) catalysts. Specially, in acidic electrolyte, HER overpotential at a higher current density of −100 mA/cm 2 of the Ni 2 P/Ni 5 P 4 @CC catalyst was 270 mV, which was even lower than that of the Pt/C catalyst (328 mV), indicating that the Ni 2 P/Ni 5 P 4 @CC heterostructural catalysts had promising prospects for commercial applications. The mechanism of catalytic performance enhancement was investigated by the density functional theory (DFT) calculations.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
ENERGY EXPLORATION & EXPLOITATION
·
2020
·
IF 1.382
Riyi Lin,Huida Pan,Weidong Xu,Liqiang Zhang,Xinwei Wang,Jianliang Zhang,Kai Chen
The study of benzothiophene hydrodesulfurization reaction path contribute to clarifying the mechanism of hydrodesulfurization (HDS) of heavy oil. In this work, experiments and simulations were combined to study the reaction pathway of benzothiophene hydrodesulfurization catalyzed by Ni2P. In experimental part, Ni2P catalyst was prepared and characterized. Then, the catalytic property of the catalyst for benzothiophene hydrodesulfurization was evaluated. The substance types and contents in the liquid phase products were detected to verify the accuracy of the simulation results. Dmol3 module of the Materials Studio (MS) simulation software was used to simulate the adsorption and hydrodesulfurization of benzothiophene on the surface of Ni2P catalyst and explore the most probable reaction path. The results showed that the most stable adsorption configuration of benzothiophene on the surface of Ni2P was Ni-hcp. In addition, indirect desulfurization of benzothiophene was more advantageous than direct desulfurization. The most possible path for indirect desulfurization was Benzothiophene (BT) – Dihydrobenzothiophene (DHBT) – C8H9S2 – 2-phenylethyl mercaptan (PET) – Ethylbenzene (EB), while that of direct desulfurization was Benzothiophene (BT) – C8H7S2 – Styrene thiol (CMT) – Styrene (ST) – Ethylbenzene (EB).
研究领域:
催化化学
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材料科学
·
石油加工工程
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DOI
高影响因子
CATALYSIS TODAY
·
2016
·
IF 4.312
Dapeng Liu,Anjie Wang,Chenguang Liu,Roel Prins
Bulk Ni 2 P and Al 2 O 3 -supported Ni 2 P were prepared at low phosphidation temperature (300 or 330 °C) from nickel nitrate, oxide, sulfate, chloride, and acetate as nickel source and ammonium and sodium hypophosphite as well as hypophosphoric acid as phosphorus source. The hypophosphite source was positioned up-flow of the nickel source in an oven and flowing N2 gas transported the phosphine formed in the decomposition of hypophosphite to the nickel compound. X-ray diffraction, N2 adsorption-desorption, thermogravimetry and differential scanning calorimetry, temperature-programmed reduction in H 2 , and transmission electron microscopy, field emission scanning electron microscopy, CO chemisorption, and solid-state 31 P nuclear magnetic resonance were used to study the bulk and supported Ni 2 P. Whereas unsupported nickel nitrate, sulfate, chloride, and oxide led to impure Ni 2 P, nickel acetate gave pure Ni 2 P. Ni 2 P/Al 2 O 3 catalysts were therefore prepared from nickel acetate and their activity was studied in the hydrodesulfurization of dibenzothiophene. Separating the hypophosphite from the nickel compound has the advantage that the phosphate formed in the disproportionation of hypophosphite does not reach the Al 2 O 3 -supported Ni compound and cannot block the pores of the support. Ni 2 P is formed by sequential reduction and phosphidation reactions and therefore its preparation demands careful adjustment of the synthesis conditions. Insufficient PH 3 leads to Ni and Ni 12 P 5 side products and too much PH 3 to Ni 5 P 4 , which all have a lower HDS activity than Ni 2 P.
研究领域:
化学工程
·
催化材料科学
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Wanying Liu,Yabo Zhu,Yuting Cui,Xiaokuan Ban,Qian Xu,Xinxi Zhang
Ni 2 P and black phosphorus (BP) exhibit their respectively excellent performance in capacitance. Flake material BP is a good phosphorus (P) source candidate for the synthesis of Ni 2 P, and is also a good carrier that can contribute to the good dispersion of Ni 2 P particles. Herein, BP flakes were prepared first by wet milling method and Ni 2 P/BP composites with different reactant mole ratio for nickel (Ni) to P were prepared by a facial solvothermal method. The electrochemical property of milled BP flakes and Ni 2 P/BP composites were investigated by cyclic voltammetry , charge/discharge and electrochemical impedance spectroscopy . It was found that the Ni 2 P/BP composite, with an appropriate reactant mole ratio for Ni to P, had the high capacity of 1215 F/g at the current density of 1 A/g and the remained stable capacity of 590 F/g after 1000 circle at the current density of 2 A/g, exhibiting good capacitance energy storage performance.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Bolong Jiang,Tianhan Zhu,Hua Song,Feng Li
The Fe-doped Ni 2 P/Fe-SBA-15 was prepared by the temperature programmed reduction method at a relative low temperature of 673 K. The effect of Fe on the catalytic performance for benzofuran (BF) hydrodeoxygenation (HDO) and dibenzothiophene (DBT) hydrodesulfurization (HDS) were investigated. The catalysts were characterized by means of X-ray diffraction (XRD), N 2 adsorption-desorption, inductively coupled plasma mass spectrometry (ICP-MS), X-ray photoelectron spectroscopy (XPS), temperature-programmed desorption of ammonia (NH 3 -TPD), and transmission electron microscope (TEM) and CO uptakes. The results indicate the incorporation of Fe into SBA-15 contributes to the exposure of smaller Ni 2 P particles (5.6 nm) with an uniform dispersion, along with enhancement of weak and medium acid strengths . Compared with Ni 2 P/SBA-15, the Fe-doped Ni 2 P/Fe-SBA-15 exhibited a much higher BF conversion of 91.7% with an improved total deoxygenated product yield of 83.3%. The excellent HDO performance of Ni 2 P/Fe-SBA-15 can be ascribed to the exposure of highly-dispersed smaller Ni 2 P particles. Meanwhile, the improved dehydration of 2-EtPh to EB and the high deoxygenated product selectivity can be attributed to the enhanced acidity. As compared to the Ni 2 P/SBA-15, the Fe-doped Ni 2 P/Fe-SBA-15 showed a higher DBT HDS activity of 96.3% with the BP formation at a great proportion of 90.3%, indicating that DBT was mainly transformed through the desulfurization pathway during HDS.
研究领域:
催化化学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
CATALYSIS COMMUNICATIONS
·
2019
·
IF 3.674
Li-Li Chu
2D-3D noble-metal-free Ni 2 P/Zn 3 In 2 S 6 hierarchical composites were fabricated firstly by the hydrothermal method and characterized by the relative techniques. The average H 2 evolution rate over the optimized Ni 2 P/Zn 3 In 2 S 6 under simulated sunlight can reach up to 6.4 mmol g −1 h −1 , which is about 3.4 and 2.6 times higher than that of pure Zn 3 In 2 S 6 and Pt/Zn 3 In 2 S 6 hybrid. The excellent photocatalytic performance can be attributed to the interaction between the well-dispersed ultrafine Ni 2 P cocatalyst and the 2D-3D Zn 3 In 2 S 6 hierarchical structure, which contributes to the separation and transportation of the photoinduced charge carriers.
研究领域:
材料科学
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能源科学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 71
·57700-57703
·
IF 3.84
Minzhi Ruan,Jun Guan,Demin He,Tao Meng,Qiumin Zhang
Ni2P/CNTs was synthesized using an impregnation method. XPS revealed that CNTs could affect the electronic properties of bulk Ni2P. The catalyst shows superior activity for HYD of naphthalene with a conversion of 99%, and demonstrates superior tolerance towards potential catalyst poisons, which is higher than Ni/CNTs with a conversion of 89%.
研究领域:
催化化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Lan Yang,Yuanzhi Hong,Enli Liu,Xue Zhang,Longyan Wang,Xue Lin,Junyou Shi
The photocatalytic H 2 production simultaneous with organic pollutant degradation has been received wide attention in resolving the problems of energy crisis and environmental pollution. In this study, for the first time, the Ni 2 P (NIP) nanoparticles are successfully loaded on the surface of In 2 O 3 (INO) nanocubes, and the physical-chemical features of as-formed NIP/INO samples are comprehensively characterized by various technologies. Moreover, the photoreactivities of as-prepared NIP/INO nanocomposites are carefully investigated through the photocatalytic H 2 evolution simultaneous with dye (Rhodamine B, RhB) degradation under simulated sunlight irradiation. It was found that the as-fabricated NIP/INO nanocomposites present the significantly enhanced H 2 production and RhB degradation rates than that of pure INO nanocubes. Consequently, the optimum photocatalytic performance of as-synthesized photocatalyst is loaded by 7 wt% NIP (7-NIP/INO), whose the H 2 evolution and RhB degradation rates are reached at 0.138 μmol h −1 and 16.12%, respectively, which are 10.6-folds and 1.6-folds higher than that of individual INO, even its photoactivity is superior than the 1 wt% Pt decorated INO. The greatly improved photocatalytic performance is due to the NIP as co-catalyst can not only promote the charge carries separation and transfer efficiency, but also provide the abundant reaction active sites. Our work highlights a simple strategy for the preparation of non-noble metal nanocomposites towards the renewable solar-driven photocatalysis applications by combining with earth-abundant Ni-based co-catalyst.
研究领域:
材料科学
·
环境科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
TOPICS IN CATALYSIS
·
2017
·Vol. 60
·期 12
·987-996
·
IF 2.486
Wang Wei,Li Xiang,Wang Anjie,Sun Zhichao,Chen Yongying
A series of mixtures of NiCl 2 , hypophosphites (NaH 2 PO 2 and NH 4 H 2 PO 2 ), and additives were used as precursors (denoted as x additive: y hypophosphite: z NiCl 2 , where x, y , and z represents the molar ratios of the compounds) for the synthesis of Ni 2 P both in N 2 and H 2 plasma. The catalytic performances of the obtained catalysts were evaluated by the hydrodenitrogenation (HDN) of quinoline (Q) and decahydroquinoline (DHQ). Ni 2 P was stoichiometrically synthesized by the treatment of 1.0NH 4 H 2 PO 2 :2.0NiCl 2 with N 2 plasma at a low total power input of 8 W (40 V × 0.2 A). In H 2 plasma, the precursor was over-reduced to a mixture of Ni and Ni 2 P, with Ni 2 P as the minor phase. The over-reduction can be inhibited by the addition of proper amount of alkali-metal chloride (NaCl or KCl) or P 2 O 5 . CaCl 2 facilitated the reduction of nickel salts to Ni. KCl was the best among the additives investigated. Both the surface and bulk over-reduction of 1.0NH 4 H 2 PO 2 :2.0NiCl 2 was inhibited by KCl, while P 2 O 5 mainly inhibited the bulk over-reduction. The addition of KCl strongly suppressed the hydrogenation of Q to DHQ, but facilitated the HDN of DHQ. On the other hand, not only the hydrogenation of Q but also the dehydrogenation of DHQ was substantially inhibited by P 2 O 5 .
研究领域:
材料科学
·
催化化学
✓ 已验证
DOI
高影响因子
Journal of the American Chemical Society
·
2021
·
IF 15.419
Qi Wang,Zhe Zhang,Chao Cai,Maoyu Wang,Zhi Liang Zhao,Menghao Li,Xiang Huang,Shaobo Han,Hua Zhou,Zhenxing Feng,Lei Li,Jun Li,Hu Xu,Joseph S. Francisco,Meng Gu
Single-atom catalysts (SACs) with 100% active sites have excellent prospects for application in the oxygen evolution reaction (OER). However, further enhancement of the catalytic activity for OER is quite challenging, particularly for the development of stable SACs with overpotentials <180 mV. Here, we report an iridium single atom on Ni2P catalyst (IrSA-Ni2P) with a record low overpotential of 149 mV at a current density of 10 mA·cm–2 in 1.0 M KOH. The IrSA-Ni2P catalyst delivers a current density up to ∼28-fold higher than that of the widely used IrO2 at 1.53 V vs RHE. Both the experimental results and computational simulations indicate that Ir single atoms preferentially occupy Ni sites on the top surface. The reconstructed Ir–O–P/Ni–O–P bonding environment plays a vital role for optimal adsorption and desorption of the OER intermediate species, which leads to marked enhancement of the OER activity. Additionally, the dynamic “top-down” evolution of the specific structure of the Ni@Ir particles is responsible for the robust single-atom structure and, thus, the stability property. This IrSA-Ni2P catalyst offers novel prospects for simplifying decoration strategies and further enhancing OER performance.
研究领域:
材料科学
·
催化化学
·
能源化学
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产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Yue Xi,Hao-Qiang Feng,Yi-Ke Li,Qun-Zeng Huang
Modification with co-catalyst has been regarded as an effective strategy to improve the photocatalytic H 2 evolution activity of Mn x Cd 1−x S. Herein, cauliflower-like Mn x Cd 1−x S decorated with Ni 2 P nanoparticles has been prepared via solvothermal method. Experiment results confirmed that modification with Ni 2 P could promote charge transfer efficiency and boost surface reaction rate of Mn x Cd 1−x S. The superior activity of 14.20 mmol g −1 h −1 was obtained over the 3 wt% Ni 2 P/Mn 0.2 Cd 0.8 S composite, which was approximately an 8.3-fold enhancement over pure Mn 0.2 Cd 0.8 S. Furthermore, the activity over Mn 0.2 Cd 0.8 S modified with Ni 2 P was higher than other Ni-based co-catalysts (Ni, Ni 2 S, Ni(OH) 2 , NiB and NiSe 2 ) modification. This work offers a new perspective to design highly efficient photocatalytic system towards H 2 evolution.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Fuyan Kang,Heng Zhao,Yuqi Liu,Chengfang Wang,Zhanhua Huang,Jinguang Hu
The Biomass photoreforming is emerging as an alternative and promising technology to simultaneously produce value-added chemicals and solar fuels. However, photoreforming of the biomass macromolecular remains a great challenge due to the lack of bifunctional photocatalyst and insight of detailed mechanism. Herein, we design the Ni 2 P onto the two-dimension Zn 0.3 Cd 0.7 S (Ni 2 P/ZCS) as the electron migration layer to realize the spatial separation of photogenerated carrier, which facilitates the depth investigation on the redox reaction. As a result, the Ni 2 P/ZCS exhibited dually catalytic performance (9.16 mmol g −1 h −1 of H 2 generation along with 1.48 mmol g −1 h −1 of lactic acid production) from cellulose photoreforming. Systematic experiments and density functional theory (DFT) were performed to reveal the bifunctionality and detailed mechanism. This work demonstrates a well concept on biomass photoreforming with the rational design of bifunctional photocatalysts.
研究领域:
材料科学
·
环境科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）