APPLIED SURFACE SCIENCE
·
2019
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IF 5.155
Taiping Hu,Kai Dai,Jinfeng Zhang,Guangping Zhu,Changhao Liang
Inorganic-organic hybrid materials, a class of probable candidates for combining two counterparts into one structure could be beneficial for improving or combing the excellent electronic, magnetic, rigidity and thermal stability, and optical feathers of inorganic frameworks with diverse structure, processability, flexibility and good geometric controllability of organic molecules. Anchoring inorganic-organic hybrid materials with cocatalysts is a usually used strategy for enhancing their catalytic performance. However, noble metal cocatalysts always limit their practical application. Herein, we report that noble metal free cocatalyst of Ni 2 P decorated CdS-diethylenetriamine (CdS-DETA) can effectively overcome this limitation to achieve highly photocatalytic hydrogen production . The rapid microwave solvothermal synthesis of CdS-DETA (MCdS-DETA) process shortens reaction time, saves energy and lead to achieve highly photocatalytic activity due to its low crystallinity . When Ni 2 P decorated MCdS-DETA, The 0.4%Ni 2 P/MCdS-DETA exhibited the highest photocatalytic hydrogen evolution activity (6836 μmmol h −1 g −1 ), which is 4.14 times, 2.06 times and 1.34 times higher than traditional solvothermal CdS-DETA(TCdS-DETA), MCdS-DETA and Pt cocatalysted MCdS-DETA, respectively. The method reported here can be extended to other inorganic-organic hybrid materials, and develops new strategies for exploring inorganic-organic hybrid-based photocatalysts .
研究领域:
材料科学
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能源化学
✓ 已验证
产品关联
DOI
高影响因子
ChemElectroChem
·
2023
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IF 4
Hailong Wei,Fangwei Gu,Yongsheng Wang,Jinyuan Hao,Wei Zhu,Zhongbin Zhuang
Graphical This work reports the synthesis of pure phase Ni 2 P nanowires for efficient hydrogen evolution reaction via the solution-based phosphidation method, demonstrating the effect of phosphorus ligand. Developing facile and low-cost synthetic methods of high-active platinum group metal-free electrocatalysts is essential for green hydrogen production primarily based on water electrolysis. We adopted a facile solution-based synthetic approach to prepare nickel phosphide nanoparticles (NP) and systematically studied the role of phosphorus ligands in the synthesis. Pure-phase Ni 2 P NPs were obtained by selecting the proper phosphorus ligands, which tuned the structures of the product. The Ni 2 P nanowire, prepared using triphenyl phosphite, exhibited the best activity and stability in acidic, neutral, and alkaline media for hydrogen evolution reaction (HER), indicating the advantages of the nanowire structure to the performance. In the acidic medium, it only required overpotential values of 100 and 167 mV to achieve the HER current densities of 10 and 100 mA cm −2 , respectively. Furthermore, the overpotential increased only by 26 mV during the 50-hour stability test, indicating potential for device application. It was also demonstrated that the on-site generation of insoluble nickel salts (e. g., hydroxides, phosphates, etc.) on the surface resulted in lower activity and stability in neutral and alkaline media than in acid.
研究领域:
材料科学
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电化学
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纳米技术
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Xin Wang,Yiyang Bi,Chengqian Wang,Ke Li,Yu Zhang,Qun Liu
In this research, we report a simple and cost-effective method for the preparation of two-dimensional (2D) Ni 2 P-Ni(PO 3 ) 2 derived from metal-organic frameworks (MOFs) via a one-step thermal phosphorization strategy. The resulting material is employed to significantly enhance the photocatalytic hydrogen evolution performance of zero-dimensional (0D) CdS nanoparticles. Through an ultrasonic-assisted strategy, the CdS nanoparticles are uniformly dispersed on the surface of Ni 2 P-Ni(PO 3 ) 2 , leading to the successful fabrication of a Ni 2 P-Ni(PO 3 ) 2 /CdS composite with substantially enhanced photocatalytic performance. Under visible light irradiation (λ ≥ 420 nm) using Na 2 S-Na 2 SO 3 as sacrificial agents, the 3 wt% Ni 2 P-Ni(PO 3 ) 2 /CdS composite demonstrated a remarkable photocatalytic hydrogen evolution rate of 2235 µmol g −1 h −1 , which is approximately 7.5 times higher than that of pristine CdS (297 µmol g −1 h −1 ). Over a 20 h cycling experiment, the composite catalyst demonstrated remarkable stability, maintaining around 78 % of its initial hydrogen generation efficiency. The enhanced performance of the composite is ascribed to the role of Ni 2 P-Ni(PO 3 ) 2 in facilitating the separation of photoinduced charge carriers from CdS and improving electrical conductivity. A possible electron-hole transfer mechanism is proposed based on the experimental findings. This work is expected to be helpful in fabricating efficient CdS photocatalysts.
研究领域:
材料科学
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纳米技术
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催化
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能量转换
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无机化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2021
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IF 19.503
Mengtian Jin,Xian Zhang,Run Shi,Qing Lian,Shuzhang Niu,Ouwen Peng,Qun Wang,Chun Cheng
For large-scale implementation of electrochemical hydrogen production , it is essential to develop electrocatalysts that work well at high current densities over a wide pH range. Herein, we use a facile method to synthesize a hierarchical bimetal phosphide (CoP@Ni 2 P) on nickel foam, which requires very low overpotentials to achieve the benchmark 10 mA cm −2 (e.g., 16 mV in alkaline media). Furthermore, the CoP@Ni 2 P can deliver a high current density of 500 mA cm −2 at small overpotentials and show no obvious decay after the durability test for over 48 h at all pH levels. The outstanding catalytic performance is attributed to the superaerophobicity of the electrode surface, fast electron transport as well as the increased number of exposed active sites caused by the hierarchical structure and the synergistic effect of the heterostructures. Consequently, this work provides an advanced transition metal-based phosphide for large-scale hydrogen production in all pH ranges.
研究领域:
材料科学
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电化学
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催化
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可再生能源
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2022
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IF 24.319
Di Li,Zengyong Li,Ren Zou,Ge Shi,Yiming Huang,Wu Yang,Wang Yang,Chuanfu Liu,Xinwen Peng
Developing efficient bifunctional electrocatalyst for overall water splitting and conversion of biomass into value-added products at large current density is essential but challenging. Herein, a hierarchical Fe-doped Ni 2 P nanosheets hybridized with C on Ni foam (Fe-Ni 2 P@C/NF) was developed as a robust bifunctional catalyst with excellent catalytic activity for hydrogen evolution reaction (HER) with overpotentials of 75 and 313 mV at 10 and 1000 mA cm −2 , respectively, and as well as for OER with a lower overpotential of 269 mV at 400 mA cm −2 . Particularly, the integrated double-electrode electrolyzer for simultaneous HER and biomass-derived monosaccharide oxidation reaction (MOR) using Fe-Ni 2 P@C/NF only requires a low voltage of 1.55 V to drive a current density of 100 mA cm −2 . Meanwhile, the value-added lactic acid is obtained at the anode. This strategy of coupling biomass oxidation to promote H 2 production can significantly reduce energy consumption and obtain additional high value-added products.
研究领域:
电化学
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催化
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能源材料
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可持续化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
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IF 9.229
Xingru Yan,Sai Che,Fan Yang,Zhusong Xu,Hongchen Liu,Chenxuan Li,Lu Yan,Na Ta,Siyuan Sun,Qiang Wei,Lei Fang,Yongfeng Li
A non-noble-metal hybrid catalyst (Ni2P/NPC-P), composed of N,P-doped porous carbon decorated with surface P-enriched Ni2P nanoparticles, is developed to address the urgent challenges associated with mass production of clean hydrogen fuel. The synthesis features one-pot pyrolysis of inexpensive fluid catalytic cracking slurry, graphitic carbon nitride, and inorganic salts, followed by a feasible surface phosphidation process. As a non-noble metal catalyst, Ni2P/NPC-P demonstrates excellent performance in hydrogen evolution reaction in alkaline electrolytes with a low overpotential of 73 mV at a current density of 10 mA cm–2 (η10) and a small Tafel slope of 56 mV dec–1, meanwhile exhibits durability with no significant η10 change after 2000 catalytic cycles. Theoretical calculation reveals that the negatively charged P-enriched surface accelerated the rate-determining transformation and desorption of OH*. In overall water splitting, the electrocatalyst achieves a low η10 of 1.633 V, promising its potential in the cost-effective mass production of hydrogen fuel.
研究领域:
催化
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材料科学
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能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Neng Chen,Xun Cao,Hongqiang Li,Dedong Jia,Yong Li,Xiaojun He
The water splitting with electro-Fenton (WS-EF) system offers a dual-functional approach for sustainable H 2 production and pollutant degradation, of which the key is to the development of catalysts with high conductivity, multi-active sites, and synergized pathways for hydrogen/oxygen evolution reactions (HER/OER) and EF processes. In this work, we propose a metal-organic framework (MOF)-derived synthesis strategy to construct carbon nanosphere-confined Ni 2 P-FeP heterostructures on nickel foam (Ni 2 P-FeP@C/NF) via in-situ confined growth, carbonization-alloying, and phosphidation strategy. First-principles calculations reveal that the carefully engineered Ni 2 P/FeP interface effectively tubes the metal d-band center, achieving an optimal hydrogen adsorption free energy for HER while precisely regulating *OOH intermediate adsorption for OER. The Ni 2 P-FeP@C/NF exhibits outstanding electrocatalytic performance, achieving low overpotentials of merely 69.5/233 mV for HER/OER, along with a voltage of 1.55 V at a current density of 10 mA cm cm −2 for overall water splitting. When employed in the electro-Fenton system, the heterointerface exhibits multifunctional catalytic properties: it selectively promotes the 2e - oxygen reduction pathway (85 % H 2 O 2 selectivity) and achieves remarkable sulfamethazine degradation (0.28 min −1 kinetic rate, 78 % TOC removal) in the KOH solution. The carbon nanosphere-confined Ni 2 P-FeP heterojunction nanospheres demonstrate exceptional long-term stability for both water electrolysis and electro-Fenton catalysis. This work pioneers interface engineering strategies for coupled hydrogen production-wastewater treatment systems by tuning electronic structure.
研究领域:
材料科学
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电化学
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环境科学
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纳米技术
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能量转换
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催化
✓ 已验证
产品关联
DOI
高影响因子
ECS Journal of Solid State Science and Technology
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2021
·Vol. 10
·期 8
·085004
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IF 2.07
Tiantian Zhang,Jiaye Chen,Jing Bai,Dongsheng Geng
Transition metal phosphides are perceived to be excellent electrocatalysts and have gradually become the primary candidates for highly efficient energy conversion devices. Coral-like Ni2P-Ni5P4 polymorphs with observable heterointerfaces were synthesized via hydrothermal method followed by low-temperature phosphidation. The phase structures and the electronic interaction of the heterointerfaces have been identified by X-ray diffraction and X-ray photoelectron spectroscopy. The resulting Ni2P-Ni5P4 catalyst exhibited a reasonable overpotential of 107 mV and a superior low overpotential of 238 mV at 10 mA cm−2 for hydrogen evolution reaction and oxygen evolution reaction in 1 M KOH, respectively. In addition, excellent water-splitting performance of 10 mA cm−2 at a low overpotential of 348 mV was obtained by combining the Ni2P-Ni5P4/NF as both cathode and anode, which is lower than that of the Pt/C and RuO2 catalyst couple. Such impressive performance might be ascribed to effective heterointerfaces of Ni2P-Ni5P4 polymorphs.
研究领域:
材料科学
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化学
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电化学
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能源材料
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
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IF 8.1
Shaopei Jia,Yanfeng Gao,Xiaofei Ma,Quan Huang,Qian Zhang,Xiaozhe Cheng,Qisong Li,Yan Zhang,Wei Cheng,Menghui Liu,Yunchao Mu
Designing and synthesizing cost-effective hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalysts is still the critical impetus for electrocatalytic alkaline water splitting for green hydrogen production. We present a novel strategy to synthesize Ni 12 P 5 –Ni 2 P heterojunction nanoparticles anchored in the three-dimensional (3D) graphene composite bonded by N–P co-doped porous carbon (NPC) through a single high-temperature carbonization. The as-obtained Ni 12 P 5 –Ni 2 P@NPC/3DG possessed an open pore structure, promoting electrolyte diffusion and enhance bubble release. The synergistic effect of the Ni 12 P 5 –Ni 2 P heterojunction with high intrinsic catalytic activity and the N–P co-doped carbon enabled the composite to exhibit high catalytic activity and stability for HER and OER. The optimized Ni 12 P 5 –Ni 2 P@NPC/3DG-0.5 exhibited overpotentials of 209.8/206.1 mV at 10 mA cm −2 and Tafel slopes of 67.9/92.3 mV dec −1 for HER/OER. Furthermore, when Ni 12 P 5 –Ni 2 P@NPC/3DG-0.5 was used as both the cathode and anode for overall water splitting, the cell only required a low voltage of 1.58 V to achieve a current density of 10 mA cm −2 , which was comparable to the catalytic activities of commercial noble metal catalysts. Meaningfully, this synthetic method provided a new strategy to improve electrocatalytic performance of Ni-based phosphides, extensively promoting the development of highly efficient electrocatalysts for alkaline overall water splitting.
研究领域:
材料科学
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电催化
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能源转换与存储
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 38
·2204833
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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
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能源存储与转换
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
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IF 8.1
Jiachen Zou,Guanying Song,Anguo Cui,Jinfeng Cui,Zhenjiang Li
The rational design of highly active electrocatalysts for water electrolysis remains challenging for green hydrogen utilization . Herein, guided by the correlation between the electroactivity and the d-band center (E d ), a novel hierarchical nanoarchitecture (Ni 2 P/NiFe 2 O 4 -V O @N-GTs) was fabricated, in which, Ni 2 P nanoparticles are grown on the oxygen vacancy-rich NiFe 2 O 4 nanosheet arrays anchoring on N-doping graphene tubes. The results reveal that the multiple strategies including the vacancies and heterogeneous interface construction effectively induce the charge redistribution, and further adjust the E d to the appropriate energy level, which endows the optimal balance between the adsorption and desorption ability of the catalyst to reaction intermediates, thus leading to the conspicuous electrocatalytic activity . Additionally, the hierarchical nanoarchitecture contributes to the exposure of more active sites, the efficiency of electron transfer , and the release of generated gas. Hence, Ni 2 P/NiFe 2 O 4 -V O @N-GTs presents superior bifunctional activity, especially a low overpotential of 194 mV at 10 mA cm −2 for OER . The corresponding overall water electrolyzer owns a lower cell voltage and long-term durability with continuously operating over 330 h at 100 mA cm −2 , outperforming the most reported bifunctional electrocatalysts . This work presents an effective pathway for regulating the E d through multiple strategies to improve the catalytic performance of catalysts.
研究领域:
材料科学
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电化学
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纳米技术
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
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IF 10.652
Pengpeng Zhang,Chao Xue,Yukun Li,Shuaiwei Guo,Xilai Zhang,Peng Zhang,Guosheng Shao
High-efficiency light utilization and prolonged lifetime of photo-induced charge carriers is a key step towards superior photocatalytic H 2 evolution. Herein, the design of a novel spatially separated Ni 2 P co-catalyst decorated SiO 2 /rGO/Cd 0.5 Zn 0.5 S yolk-shell structural photocatalytic nanoreactor is reported. In this system, the advantages of ultrathin mesoporous shell and yolk-shell structure not only facilitate the mass diffusion with short length, but also allow broad-spectrum light absorption and increase the density of catalytic active sites. Importantly, the photo-generated electrons can be directionally injected from the outermost Cd 0.5 Zn 0.5 S shell to the spatially separated Ni 2 P co-catalyst. The dynamic behaviors of photo-induced charge carriers can be rationally regulated by the suitable energy level alignment and the built-in electric fields derived from both sides of embedded rGO interlayer. The synergistic effects of the excellent light-harvesting ability, more exposed active sites and improved charge separation efficiency significantly boosted the photocatalytic performances of hydrogen evolution. As a result, the optimal SiO 2 /Ni 2 P/rGO/Cd 0.5 Zn 0.5 S composite exhibited the highest hydrogen generation of 11.65 mmoL‧g −1 ‧h −1 , even after five cycles. This work proposes new insights into the design of the efficient hollow sphere structural heterojunctions for photocatalytic water splitting applications.
研究领域:
材料科学
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纳米技术
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光化学
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催化
✓ 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）