Journal of Energy Chemistry
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2024
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IF 14
Haizhao Yang,Haifeng Lv,En Zhou,Xiaohao Ji,Chunnian Chen,Haolei Yu,Zhaowei Sun,Dawei Zhang,Hongchang Jin,Xianghua Kong,Hengxing Ji
Sodium metal batteries (SMBs) are rising as viable alternatives to lithium-ion systems due to their superior energy density and sodium's relative abundance. However, SMBs face significant impediments, particularly the exceedingly high negative-to-positive capacity ratios (N/P ratios) which severely encumber energy density and hinder their practical application. Herein, a novel nucleophilic Na 3 P interphase on aluminum foil has been designed to significantly lower the nucleation energy barrier for sodium atom deposition, resulting in a remarkable reduction of nucleation overpotential and efficient mitigation of dendritic growth at high sodium deposition of 5 mA h cm −2 . The interphase promotes stable cycling in anode-less SMB configurations with a low N/P ratio of 1.4 and high cathode mass loading of 11.5 mg cm −2 , and demonstrates a substantial increase in high capacity retention of 92.4% after 500 cycles even under 1 C rate condition. This innovation signifies a promising leap forward in the development of high-energy-density, anode-less SMBs, offering a potential solution to the longstanding issues of cycle stability and energy efficiency.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2024
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IF 3.8
Shan Tang,Jiahong Han,Yihui Xia,Yueyue Yu,Zhongming Li,Feng Wu,Yuhui Xie,Delong Xie,Hao Huang,Dong Feng
CNTs feature ultrahigh electrical conductivity and multiwall structure, contributing to the favorable interaction with microwaves, and accordingly evoke drastic energy conversion to the form of heat upon microwave irradiation. Herein, CNTs were ball milling assembled at the surface of expandable thermoplastic polyurethane/black phosphorus (e-TPU/BP) beads, where BP was used as a flame retardant, and served as the “interfacial sensitizer”, resulting in exceptional selective heating to inducing bubble formation in a continuous conductive network of TBC composite foams under the microwave field setting. The sinter-molded TBC composite foam possesses a high sensitivity of 550 kPa–1 over 0–0.4 MPa of compressive stress with an ultralow CNT content of 0.5 wt %, stability of over 1000 cycles, and durability of 5000 s. Moreover, BP also provided excellent flame retardant and antidripping properties at 2 wt % loading. Therefore, by utilizing the intense response of CNTs to microwaves, a universal approach was developed not only for foam molding but also for the functionalization of thermoplastic materials.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Cun Hu,Fengyun Ding,Chao Lv,Linsen Zhou,Ning Zeng,Aojie Liu,Jinguang Cai,Tao Tang
Proton exchange membrane (PEM) water electrolysis is crucial for efficient hydrogen isotope separation (HIS) in liquid water. However, current cathode catalysts like platinum (Pt) suffer from scarcity and limited HIS performance. To overcome this challenge, we propose a simple and effective approach involving the synthesis of highly dispersed NiP 2 nanoparticles supported on carbon (NiP 2 /C) through a solid-phase phosphidation reaction, and for the first time report its enhanced HIS performance as the cathode catalyst in PEM electrolyzer. The NiP 2 /C catalyst demonstrates excellent catalytic properties as a cathode catalyst for hydrogen evolution reaction (HER) in an acidic electrolyte, achieving low overpotential of only 157 mV at 10 mA/cm 2 and Tafel slope of 95.6 mV/dec. Meticulous investigations and density functional theory (DFT) calculations reveal the intrinsic factors behind its performance. Furthermore, DFT calculations predict the HIS performance of both NiP 2 /C and Ni/C catalysts, revealing the advantages of NiP 2 /C over Ni/C. Experimental results obtained in practical PEM water electrolysis validate these predictions, as NiP 2 /C exhibits an impressive separation factor α of 6.36, nearly twice that of the Pt/C catalyst. Moreover, NiP 2 /C demonstrates reliable and consistent HIS performance during a 100-hour PEM electrolysis process. Importantly, our calculation model for deuterium enrichment in liquid water reveals that catalysts with higher separation factors α show faster deuterium enrichment and higher deuterium recovery rates. The utilization of NiP 2 /C as a non-noble metal cathode catalyst holds great promise for efficient and sustainable hydrogen isotope separation, addressing the limitations of precious metal catalysts and advancing clean energy technologies.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Shuilai Qiu,Fanghe Su,Yifan Zhou,Yuntao Li,Xin Wang,Laibin Zhang
Currently, designing an efficient and broadly applicable (suitable for foams, wood, steel, plastic) fire-retardant coating remains a significant challenge. This work introduces a multi-scale micro-nanostructured hybrid fireproof coating. The composite features basic fillers that include ceramic glass microspheres, while its interior comprises an inorganic aerogel made from nano black phosphorus and silicon dioxide nanofibers for reinforcement, with a phosphorus-containing acrylic polymer serving as the base. Upon exposure to elevated temperatures, the coating’s surface transforms into a solid char layer resembling scale armor, effectively functioning as a robust fire barrier to protect the underlying substrate. The coating treated rigid polyurethane foam achieved an exceptionally high Limiting Oxygen Index of 45 %, outperforming comparable products. In terms of flame retardancy and smoke suppression, this innovative coating significantly reduces Peak Heat Release Rate (50.3 %) and Total Smoke Production (54.9 %). Notably, it exhibits rapid self-extinguishing capabilities within seconds during butane flame tests at temperatures exceeding 1100 °C, demonstrating remarkable resistance to high-temperature flames. This research offers a straightforward methodology for developing high-performance fireproof coatings, with promising applications across various industrial settings.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2018
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IF 5.091
Jing Wang,Dingke Zhang,Junkai Deng,Shijian Chen
As the world faces serious environmental pollution and energy shortage, developing Vis-light-driven photocatalysts for water splitting is highly attractive in clean energy utilization. Fabricating heterostructures has been proposed to be an efficient system to enhance the photocatalytic activity . However, synthesizing heterostructures with good contact and understanding charge transfer dynamics are still unresolved issues. In this work, a facile calcination approach was used to synthesize red phosphorus (RP) nanostructures/TiO 2 heterostructured composites. The RP nanostructures were directly grown on the TiO 2 nanoparticles with an intimate surface contact. By adjusting the molar ratio of amorphous RP to TiO 2 and the synthesizing temperature, thin nanorod-like RP nanostructures with a large exposed surface and a good surface contacting with TiO 2 were obtained. The synergetic effect of heterostructured RP/TiO 2 composites leads to an enhanced charge separation and transfer, and a better utilization of visible-light. As expected, the RP/TiO 2 -700 °C composites exhibit good photocatalytic activity of degrading RhB and the optimal H 2 evolution rate. This work not only provides a method to prepare earth abundant elemental phosphorus well-contacted heterostructures, expand the well-known UV-active TiO 2 photocatalyst to visible active, but also deepens understanding of charge transfer dynamics in heterostructured photocatalyst.
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2018
·Vol. 28
·期 10
·1705407
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IF 13.325
Yun Zheng,Zihao Yu,Honghui Ou,Abdullah M. Asiri,Yilin Chen,Xinchen Wang
Metal-free heterostructure photocatalysts composed of black phosphorus (BP) and polymeric carbon nitride (CN) are successfully synthesized via a one-step liquid exfoliation method assisted by sonication. The combination of BP with CN strengthens the visible-light harvesting ability, facilitates the charge separation in the photocatalytic process, and renders promoted activity of photoinduced molecular oxygen activation, such as superoxide radicals (·O 2 − ) evolution and H 2 O 2 production. This work highlights that coupling semiconductors with well-matched band levels provide a flexible route to enhance the performance of photocatalysts for producing reactive oxygen species, and gives ideas for the design of highly active and metal-free materials toward sustainable solar-to-chemical energy conversion and environmental remediation.
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Advanced Science
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2025
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IF 14.1
Liangshutong Zhang,Yupu Zhang,Xinyu Li,Donghao Han,Wei Zhai,Jianyuan Wang
The realization of fast, simple and efficient flight attitude recognition is crucial for flight safety and control stability, but still faces challenges in new materials and technologies. Herein, a chloroplast-like selenium-doped copper sulfide@black phosphorus (CSS@BP) composite material is prepared by ultrasonic chemical synthesis using BP nanosheets to effectively absorb light energy and disperse CSS layers to promote rapid photothermal conversion, which shows the temperature change more than ≈40 °C and an excellent photothermal conversion efficiency of 68.9% at 405 nm, corresponding to the theoretical calculation results. Moreover, the CSS@BP/Bi 2 Te 3 photothermoelectric conversion array prepared by pulsed laser deposition coated Bi 2 Te 3 thermoelectric layer and laminated porous insulating polyimide film can generate rapid thermal current changes through irradiated/non-irradiated thermal gradients. Hence, a portable attitude recognition box (ARB) is assembled with a based CSS@BP/Bi 2 Te 3 array with a self-balancing laser and a current measurement chip that enables accurate attitude recognition through the bidirectional current generated by changes of irradiated area. Excitably, the ARB demonstrates over 86.47% accuracy without complex algorithms, showing excellent stability and robustness. Thus, this work offers an innovative solution for advancing photothermal materials and low-cost high-precision flight attitude sensing technologies.
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高影响因子
FUEL
·
2024
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IF 6.7
Yan Wang,Xi Wu,Qiaoling Yang,Yuqi Zhao,Hengliang Wang,Arturo Pajares,Jinying Zhang,Jiahong Wang,Wai-Yeung Wong,Xin Wang
Designing ternary heterojunction photocatalysts is regarded as a compelling approach to attain exceptional photocatalytic activity. However, they always suffer from poor interfacial contact and unclear charge transfer pathways. Herein, a metal-free dual S-scheme heterojunction photocatalyst comprised of black phosphorus (BP), carbon nitride (CN), violet phosphorus (VP) was designed by electrostatic self-assembly. The non-metallic feature of the BPCNVP heterostructure facilitates to form strong interfacial contact by coordinating active P sites in VP and BP with N atoms in CN. Notably, a definite dual S-scheme heterojunction configuration is achieved by rational band alignment of VP and BP, respectively, which significantly boosts the driving force for charge separation. The BPCNVP heterostructure exhibited a hydrogen evolution rate of 1669μmol h -1 g −1 with excellent stability, surpassing most reported metal-free photocatalysts. This work demonstrates that the design of dual S-scheme heterojunction by metal-free materials provides valuable insights into the intricate reaction mechanism of ternary heterojunction photocatalysts.
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Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 24
·14491-14500
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IF 10.7
Jie Xiong,Feng Wang,Botao Zhu,Kaixuan You,Shuo Wu,Peng Jin,Lai Feng
Coupling electrooxidation of 2,5-bis(hydroxymethyl)furan (BHMFOR) with electroreduction of 5-hydroxymethylfurfural (HMFRR) might be a feasible approach towards the sustainable synthesis of value-added chemicals. Rational design of efficient and durable catalysts is crucial to this novel strategy. Herein, we demonstrate that the NiCo phosphide (NiCoP) nanosheet could be anodically reconstructed into a hydroxide-modified metaphosphate nanosheet (i.e., NiCoPi/Oi). The NiCoPi/Oi exhibits excellent BHMFOR performance with a low onset potential of 1.23 VRHE to yield 2,5-furandicarboxylic acid (FDCA) with nearly quantitative faradaic efficiency (FE), high selectivity (99%) and robust stability (for 10 cycles). A series of in situ spectroscopic analyses reveal dynamic cycles of NiOOH/Ni(OH)2 on the catalyst surface under the BHMFOR conditions, verifying an indirect oxidation pathway. As demonstrated by density functional theory (DFT) calculations, benefiting from the synergistic effect of heterostructures, the NiCoPi/Ni(OH)2 can enhance the adsorption of BHMF, hence promoting the BHMFOR through the indirect pathway. Furthermore, an electrode pair of NiCoP//NiCoPi/Oi is employed for the electrolysis of HMFRR/BHMFOR with graded electrolytes, fulfilling the concurrent synthesis of BHMF and FDCA with a combined FE of 134%. Our work thus provides new insights into catalyst design for biomass upgrading as well as a sustainable strategy for an overall conversion from HMF to FDCA.
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METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
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2025
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IF 3.1
Zhao Ya,Wu Jijun,Ma Wenhui
The study of diffusive mass transfer of impurity phosphorus (P) in silicon melts was a crucial aspect of achieving efficient deep P removal. To elucidate the mass transfer mechanism of P in silicon melts, this paper presents a kinetic analysis of impurity P removal from silicon melts. To minimize the effects of convection on diffusion, a capillary diffusion device was employed to conduct experimental investigations of P diffusion in silicon melts at different temperatures. According to slag–silicon refining experiments, the mass transfer process of P between the silicon melt and the slag phase was characterized and the mass transfer coefficient of P in the silicon melt was calculated. The experimental results indicated that the diffusion coefficients of P in silicon melt at 1450 °C, 1500 °C, and 1550 °C were 2.81 × 10 −8 , 3.24 × 10 −8 , and 3.91 × 10 −8 m 2 ·s −1 , respectively. Through the calculation of the activation energy for P diffusion, the relationship between the diffusion coefficient and temperature was determined as \(D=1.23\times {10}^{-5}\cdot {\text{e}}^{-\frac{\text{87,260}}{RT}}\) . At a refining temperature of 1550 °C, the mass transfer coefficient of P in the silicon melt was found to be 2.11 × 10 −5 m·s −1 when calcium silicate slag was used for slag refining. These findings provided essential kinetic data, including diffusion and mass transfer coefficients, to support the advanced removal of impurity P from metallurgical-grade silicon (MG-Si).
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FUEL
·
2025
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IF 7.5
Mingfu Li,Pingjun Zhang,Shuanglan Hu,Douyong Min,Jingjie Tang,Yingchuan Zhang,Liqun Jiang
The green synthesis of 5-hydroxymethylfurfural (HMF) from carbohydrates is a significant step for the production of sustainable fuels and fine chemicals, where the solvent plays an important role in terms of conversion efficiency and process sustainability. This work reports the bifunctional use of ternary deep eutectic solvents (TDESs), as both the solvent and catalyst, in the dehydration of fructose to HMF. A series of phenolic acids are used as hydrogen bond donors (HBDs) in TDESs. The combination of choline chloride–1,4-butylene glycol– p -hydroxybenzene propanoic acid (ChCl–BDO–PH) catalysed the quantitative conversion of fructose to obtain the highest HMF yield of 90.2%. Nuclear magnetic resonance and 3D-fluorescence spectroscopy analysis indicated that there were no humins polymers accumulation and it possibly formed the soluble micro-molecules humins byproducts. Moreover, HMF could be readily separated from TDESs, which allowed the stable recycling of TDESs for five recycles. Density functional theory calculations implied that a lower energy of hydrogen bond between TDESs and fructose promoted the fructose conversion and HMF formation, which is due to the methoxy group and side chain structure of phenolic acid that may reduce the ionization activity of hydrogen ions in the carboxyl group, thus reducing the hydrogen bond between TDESs and fructose. This work provides a novel alternative to traditional Brønsted acid towards the greener production of HMF.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Yunshuyu Sun,Hao Chen,Zhiang Hou,Jinnan Wang,Aimin Li,Philippe François-Xavier Corvini
In this work, black phosphorus quantum dots (BPQDs) and NiFe layered double hydroxide (NiFe-LDHs) were loaded on BiVO 4 photoanode for promoting photoelectrochemical (PEC) water splitting. As a narrow bandgap p-type semiconductor with high work function, BPQDs could not only form p-n junction with BiVO 4 to enhance light harvest but also construct Schottky junction for charge carriers separation. More importantly, introduction of BPQDs facilitates the transformation of Ni(OH) 2 into NiOOH so as to improve the water oxidation capacity at low bias voltage. Density functional theory (DFT) calculation demonstrates that introduction of BPQDs accelerates the α/γ phase transition dynamically and thermodynamically, thus BiVO 4 /BPQDs/NiFe-LDHs photoanode achieves photocurrent density of 5.28 mA cm −2 at 1.23 V RHE , AM 1.5 G and maintains good stability. In summary, this work provides new ideas for constructing efficient hole extraction layers on photoelectrode, well expanding the application of BPQDs in PEC water splitting.
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