CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Sheng Zhan,Yue Ren,Yuhang Miao,Wei Kong,Yang Li,Wang Zhan,Tianchun Cheng,Zhenhua Li,Yufei Zhao,Hua Zhou,Mingfei Shao
Treating electroless nickel plating (ENP) wastewater is an energy and cost intensive process owing to its high content of phosphor, sulphur, and organic complexing agents. Here we demonstrated the solar-thermal evaporation of real ENP wastewater into clean water and solid composite, which was then converted to an efficient Ni 2 P-Ni 9 S 8 heterojunction electrocatalyst for the oxidation of biomass derived 5-hydroxymethylfurfural to valuable 2,5-furandicarboxylic acid (FDCA). This catalyst achieves high current up to 200 A in a 200 cm 2 continuous-flow reactor with 80.4% of Faradaic efficiency and 5.0 mmol cm −2 h −1 of production rate for FDCA electrosynthesis. Moreover, this reactor can be operated at 100 A with stable single-pass conversion efficiency (∼91%), Faradaic efficiency (∼86%) and selectivity (∼95%) of FDCA for 177 h, totally producing 14.7 kg of FDCA. This work showcases the integrated valorization of ENP wastewater and biomass platforms to valuable materials and chemicals driven by sustainable energy.
研究领域:
环境科学
·
电催化
·
绿色化学
·
可持续能源
·
工业废水处理
·
生物质转化
·
材料化学
·
化学工程
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Naizhang Xu,Bowei Cai,Qi Li,Yubing Liu,Jie Tang,Kaiqiang Wang,Bolian Xu,Yining Fan
The covalent triazine frameworks (CTFs) have recently become a new generation of organic semiconductor for photocatalytic hydrogen production from water splitting because of their great application potentials. However, the CTFs need to be combined with noble-metal-cocatalysts to achieve photocatalytic water splitting. Herein, we reported the noble-metal-free Ni 2 P/CTF composites as an efficient catalyst for photocatalytic hydrogen evolution . With increasing the Ni 2 P alloy loading on the surface of CTF, the photocatalytic activity increases obviously and then decreases gradually, and the highest photocatalytic H 2 evolution rate is achieved for 2.8%Ni 2 P/CTF, which is almost the same as that of 3.0%Pt/CTF photocatalyst. It has been revealed that the Ni 2 P alloy act as a cocatalyst for effectively suppressing the recombination of photogenerated electrons and holes, promoting the separation and migration of the charge carriers, thereby improving the efficiency of photocatalytic H 2 evolution. This work provides a promising strategy for preparation of cheap and stable photocatalytic system based on CTF for efficient photocatalytic hydrogen evolution under visible-light irradiation.
研究领域:
材料化学
·
光催化
·
能源化学
·
半导体物理
·
可持续能源
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Yiyang Bi,Xin Wang,Ke Li,Chengqian Wang,Yu Zhang,Qun Liu
A reasonable introduction of MOFs-derived Ni 2 P with high dispersion is a valid way to reduce the recombination rate of photogenerated electron holes , thus enabling more effective visible light-driven water splitting. Herein, the MOF-on-MOF strategy was used to prepare Ni 2 P@UiO-66-NH 2 by in situ growth of Ni-MOF on UiO-66-NH 2 followed by vapor-phase phosphating, and the composite photocatalyst of CdS/Ni 2 P@UiO-66-NH 2 was obtained by a facile ultrasound method in solvent. UiO-66-NH 2 provides the growth site for Ni-MOF, enabling uniform dispersion of Ni 2 P and the firmly anchoring of CdS. By adjusting the proportion of Ni 2 P@UiO-66-NH 2 , the light absorption capacity and photocatalytic activity can be further optimized. The hydrogen production efficiency of CdS/Ni 2 P@UiO-66-NH 2 can reach up to 2103 µmol·g −1 ·h −1 , which is about 7 times higher than that of pure CdS. The improvement of the photocatalytic performance of CdS/Ni 2 P@UiO-66-NH 2 composites can be mainly ascribed to the increased active sites exposure, well dispersion of CdS, and the creation of multiple heterojunctions , which tune the band gap, broaden the visible light absorption, and facilitate the carrier separation. This work offers an efficient synthetic strategy for creating ternary composites with remarkable catalytic activity and high stability for hydrogen evolution .
研究领域:
材料科学
·
光催化
·
氢能
·
纳米复合材料
·
金属有机框架（MOFs）
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DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Xu Jiangnan,Zhang Xuanhang,Naghizadeh Matin,Liu Wenhuan,Xu Bing,Dong Sheying
The creation of electrocatalysts composed of nonprecious
metals,
which must be efficient, durable, and economical, constitutes a major
scientific hurdle for achieving practical overall water splitting
(OWS). In this study, a layered Ni 2 P–Fe 2 P–Co 2 P nanoarray electrocatalyst was fabricated
on nickel foam (NF) using NiFeCoOH via electrodeposition followed
by a low-temperature phosphidation strategy. The electrocatalyst features
abundant in-plane heterojunctions formed via cation exchange, which
effectively tune its morphology and enhance charge-transfer efficiency
and active-site exposure. At the same time, the heterojunctions promote
the adsorption/desorption of reaction intermediates, thereby synergistically
enhancing the catalytic activity for both the hydrogen evolution reaction
(HER) and oxygen evolution reaction (OER). In an alkaline electrolyte,
the catalyst requires low overpotentials of only 43 mV for HER and
259 mV for OER to deliver a current density of 10 mA cm –2 and demonstrates excellent durability. When employed for overall
water splitting, it achieves 10 mA cm –2 at a low
cell voltage of 1.43 V.
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DOI
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
Siran Xu,Yeshuang Du,Xian Liu,Xin Yu,Chunlin Teng,Xiaohong Cheng,Yunfeng Chen,Qi Wu
Developing earth-abundant and high-efficient catalysts for the oxygen evolution reaction (OER) to enhance the efficiency of water splitting is highly desirable. Metal-doping and construction of heterogeneous structure are two start-of-the-art strategies to increase the OER activity of transition metal materials. In this work, we exhibit the design and construction of a unique coral-like 3D hierarchical Mn-doped Ni 2 P–Ni 5 P 4 /NF (Mn–Ni–P/NF) OER catalyst. The Mn-doped Ni 2 P–Ni 5 P 4 /NF hybrid catalyst is synthesized on Ni foam by hydrothermal and followed in situ phosphidation, which exhibits superior OER catalytic performance with an overpotential of 230 mV (vs. RHE) at a current density of 10 mA/cm 2 and 70 mV lower than Ni 2 P–Ni 5 P 4 /NF (300 mV). Furthermore, it also exhibits good long-term stability for 20 h. This work provides a good thought named metal-doping transition metal phosphide complexes to improve the catalytic activity for OER. Such a superior OER performance is main attributed to the unique morphology, the doping of metal Mn regulating the metal phosphide Ni 2 P–Ni 5 P 4 nanosheet structure to be a 3D rough high-active-sites nanorod structure with the in situ formed oxidized Ni species on the surface and effective composite nanostructures .
研究领域:
材料科学
·
电化学
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Fang Xu,Qing Xia,Guoping Du,Zhaoyang Fan,Nan Chen
Transition metal phosphides (TMPs), used in hybrid supercapacitors (HSCs) as battery–type electrodes, have gain tractions for balancing the requirements for both power and energy; however, their poor structural integrity, inferior conductivity and low porosity restrict the achievable performance. Developing an elaborate material architecture for electrodes that endows mechanical robustness, superior conductivity and large surface area is a pressing need for TMPs to achieve boosted performance in supercapacitors. Here, we report a coral–like interconnected Ni 2 P nanoparticles dispersed on porous amorphous carbon matrix (Ni 2 P@C) as the electrode material with superior electrochemical performance. The Ni 2 P@C electrode exhibits a superior specific capacity of 3,631mC cm −2 at 1 mA cm −2 (979 C g −1 at 1 A g −1 ). Impressively, the assembly of Ni 2 P@C and active carbon (AC) electrodes result in an advanced HSC with energy density of 44.0 Wh kg −1 at 800 W kg −1 and cycling stability of 90.5% retention after 10,000 cycles, demonstrating this unique Ni 2 P@C structure is promising for developing practical HSC technology.
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
Crystals
·
2022
·Vol. 12
·期 3
·318
·
IF 2.67
Ze Li,Jie-Ying Jing,Zhi-Qiang Qie,Wen-Ying Li
Jet fuel rich in hydroaromatics and cycloalkanes could be derived from direct coal liquefaction oil via the hydrogenation saturation process. Developing an efficient catalyst to transform naphthalene hydrocarbons to hydroaromatics and cycloalkanes with high selectivity plays a significant role in realizing the above hydrogenation saturation process. In this work, Ni2P/Al2O3catalysts were prepared at different reduction temperatures via the thermal decomposition of hypophosphite. We investigated the influence of reduction temperature and the results showed that reduction temperature had an important impact on the properties of Ni2P/Al2O3catalysts. When the reduction temperature was 400 °C, the Ni2P particle size of the Ni2P/Al2O3catalyst was 3.8 nm and its specific surface area was 170 m2/g. Furthermore, the Ni2P/Al2O3catalyst reduced at 400 °C obtained 98% naphthalene conversion and 98% decalin selectivity. The superior catalytic activity was attributed to the smaller Ni2P particle size, higher specific surface area and suitable acidity, which enhanced the adsorption of naphthalene on Ni2P/Al2O3catalyst.Keywords:nickel phosphide;reduction temperature;naphthalene hydrogenation;thermal decomposition of hypophosphite
研究领域:
催化化学
·
能源化工
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Qing Xu,Linlin Zang,Ziying Li,Fengtong Shen,Yanhong Zhang,Liguo Sun
As a new generation of non-precious metal catalysts , nickel phosphide is regarded as an ideal substitute for precious metal platinum in electrochemical hydrogen evolution . Here, a hydrogen evolution reaction (HER) electrocatalyst is developed by in situ growth of Ni 2 P/Ni 5 P 4 heterostructures on porous N decorated rGO foam (named Ni 2 P/Ni 5 P 4 /N-rGO). The porous rGO foam structure provides a larger surface area and abundant active sites. The Ni 2 P/Ni 5 P 4 nanoparticles with heterostructures are uniformly distributed on the rGO sheet, which enhance the charge transfer ability. The decorating of N element also correspondingly improves the HER performance. The as-prepared Ni 2 P/Ni 5 P 4 /N-rGO exhibits excellent HER performance in alkaline medium . When the current density is 10 mA cm −2 , the overpotential is only 22 mV. No obvious loss of HER activity after 2000 cyclic voltammetry indicates that the composite has excellent stability. This work presents a valuable route for fabricating inexpensive and high-performance catalysts for electrocatalysis .
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
JOURNAL OF CATALYSIS
·
2023
·
IF 7.3
Zhiwei Yang,Yiwen Luo,Yihan Chen,Jing Zhang,Xinyu Wang,Xianchun Chen
Black phosphorus (BP) shows great potential applications in photoelectric conversion and photocatalysis , but its applications are limited by its disadvantages such as poor ambient stability and rapid carrier recombination under photoirradiation. In this work, it was surprisingly found that the in-situ generation of Ni 2 P onto the surface of BP leaded to a significant improvement in both ambient stability and photocatalytic singlet oxygen ( 1 O 2 ) generation under NIR irradiation. Because of the transfer of electrons from Ni to BP via Ni-P bonds, the Ni 2 P/BP showed better charge separation efficiency and ambient stability in NIR photoelectric conversion. Moreover, the Ni 2 P/BP was able to generate 1 O 2 for NIR photocatalysis through Russell Mechanism. Meanwhile, norfloxacin and E. coli could also be removed by Ni 2 P/BP under NIR irradiation, which further shows the ability to generate 1 O 2 for practical utilization. This work provides a novel insight into the passivation of BP by hetero-atoms doping and a new strategy for green NIR photocatalytic water remediation.
研究领域:
材料科学
·
光催化
·
环境科学
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产品关联
DOI
高影响因子
ChemCatChem
·
2018
·Vol. 10
·期 10
·2248-2253
·
IF 4.674
Jiahui Chen,Yunming Li,Guoqing Sheng,Lu Xu,Huangqing Ye,Xian-Zhu Fu,Rong Sun,Ching-Ping Wong
Graphical Non-noble-metal-based electrocatalyst : Fe-doped Ni 2 P nanosheets in situ grown on Ni submicrowires show superior electrocatalytic performance toward oxygen evolution reaction to some state-of-the-art catalysts in alkaline solution. Tens of micrometers long metallic Ni submicrowires with a diameter of approximately 200 nm are prepared by a chemical reduction method under a magnetic field. Fe-doped Ni 2 P nanosheets are then in situ grown on Ni submicrowires by a simple wet-chemical reaction followed by a low-temperature phosphorization process. The (Ni 0.87 Fe 0.13 ) 2 P–Ni composite exhibits the highest catalytic activity toward oxygen evolution reaction in alkaline solution among all the as-prepared (Ni 1− x Fe x ) 2 P–Ni catalysts, delivering a current density of 10 mA cm −2 at an overpotential of only 257 mV and keeping high stability over 10 h electrolysis. These exceptional activities are attributed to the unique structure combining metallic Ni submicrowires as good electronically conductive substrate and the in situ grown Fe-doped Ni 2 P nanosheets. Specifically, Fe incorporation leads to strong electron interactions between Ni, Fe, and P, fast reaction kinetics, small charge-transfer resistance, and a large electrochemical surface area, which are responsible for the excellent catalytic performance.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
产品关联
DOI
高影响因子
ACS Catalysis
·
2022
·
IF 13.7
Zinan Huang,Xianping Liao,Wenbiao Zhang,Jialai Hu,Qingsheng Gao
Modulating the dynamic change of catalysts is significant for understanding the mechanism and exploiting better electrocatalysts but remains challenging in oxygen evolution reaction (OER). Herein, ceria-promoted reconstruction of Ni-X (X = S, P, and O) is investigated to unravel the correlation between the reconstructed surface and the OER performance, which further guides the design of prominent electrocatalysts. Interfacial CeO2 promotes the in situ reconfiguration of Ni-X via strengthening hydroxyl adsorption, generating highly active CeO2-NiOOH interfaces. Moreover, rich oxygen vacancies formed after breaking Ni-S/P bonds and leaching S/P anions render Ni3S2 and Ni2P superior to NiO with the same CeO2 modification, highlighting another dependence on pre-catalyst materials chemistry. Theoretical analysis further confirms that the co-presence of CeO2-NiOOH interfaces and oxygen vacancies can harmoniously regulate intermediate chemisorption toward favorable OER kinetics. As a proof of concept, CeO2-modified Ni3S2 exhibits low overpotentials of 251 and 364 mV at the current densities of 10 and 100 mA cm–2 in 1.0 M KOH, respectively, performing among the best of recently reported Ni-based counterparts.
研究领域:
电化学
·
材料科学
·
催化
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Qing Ye,Xuanhao Hu,Yupei Fu,Yongliang Cheng
The rational design and construction of amorphous/crystalline heterostructures with multiphasic interfaces represents an effective approach to enhance the oxygen evolution reaction (OER) activity of transition metal phosphides (TMP)-based electrocatalysts. Herein, we report a CoP/Ni 2 P@FeP heterostructured nanofibers electrocatalyst (CoP/Ni 2 P@FeP NFs) via electrospinning, oxidation, in situ growth of CoNiFe-PBA nanocubes and subsequent phosphorization, in which amorphous Co and Ni co-doped FeP nanosheets are anchored on crystalline nanofibers composed of CoP and Ni 2 P. Electrochemical tests combined with theoretical calculations demonstrates that the construction of the amorphous/crystalline heterostructure with triphasic interfaces induces electronic rearrangement of CoP/Ni 2 P@FeP NFs, which leads to the upshift of the O 2p band center of the CoNiFeOOH species formed after surface reconstruction, thereby facilitating the OER through the LOM pathway and ultimately enhancing the intrinsic catalytic activity. As a result, the CoP/Ni 2 P@FeP NFs exhibits low overpotentials of 256, 297 and 311 mV to achieve high current densities of 100, 500 and 1000 mA cm −2 , respectively. Moreover, the electrolytic cell assembled with CoP/Ni 2 P@FeP NFs and Pt/C only requires voltages of 1.508, 1.607 and 1.690 V to deliver current densities of 100, 500 and 1000 mA cm −2 , respectively, and exhibits outstanding long-term stability at 200 mA cm −2 for 200 h.
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高影响因子
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