Nature Communications
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2022
·Vol. 13
·期 1
·1-12
·
IF 17.694
Shi Yuansheng,Jiang Pengfeng,Wang Shicheng,Chen Weixin,Wei Bin,Lu Xueyi,Qian Guoyu,Kan Wang Hay,Chen Huaican,Yin Wen,Sun Yang,Lu Xia
The omnipresent Na + /vacancy orderings change substantially with the composition that inevitably actuate the ionic diffusion in rechargeable batteries. Therefore, it may hold the key to the electrode design with high rate capability. Herein, the influence of Na + /vacancy ordering on Na + mobility is demonstrated firstly through a comparative investigation in P2-Na 2/3 Ni 1/3 Mn 2/3 O 2 and P2-Na 2/3 Ni 0.3 Mn 0.7 O 2 . The large zigzag Na + /vacancy intralayer ordering is found to accelerate Na + migration in P2-type Na 2/3 Ni 1/3 Mn 2/3 O 2 . By theoretical simulations, it is revealed that the Na + ordering enables the P2-type Na 2/3 Ni 1/3 Mn 2/3 O 2 with higher diffusivities and lower activation energies of 200 meV with respect to the P3 one. The quantifying diffusional analysis further prove that the higher probability of the concerted Na + ionic diffusion occurs in P2-type Na 2/3 Ni 1/3 Mn 2/3 O 2 due to the appropriate ratio of high energy ordered Na ions (Na f ) occupation. As a result, the interplay between the Na + /vacancy ordering and Na + kinetic is well understood in P2-type layered cathodes.
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Science China-Life Sciences
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2025
·
IF 9.5
Gui Tianxiang,Liu Ying,Fu Mingfeng,Wu Han,Su Pan,Feng Xuhui,Zheng Mengmeng,Huang Zixuan,Luo Xudong,Boron Walter F.,Chen Li-Ming
Nicotinamide adenine dinucleotide (NAD) is well known as a coenzyme involved in many redox reactions in cellular energy metabolism, or as a substrate for many NAD + -consuming enzymes, including those that generate the second messenger cyclic ADP-ribose or deacetylate proteins (e.g., histones). The role of NAD in non-catalytic proteins is poorly understood. IRBIT and L-IRBIT (the IRBITs) are two cytosolic proteins that are structurally related to dehydrogenases but lack catalytic activity. Instead, by interacting directly with their targets, the IRBITs modulate the function of numerous proteins with important roles, ranging from Ca 2+ signaling and intracellular pH (pH i ) regulation to DNA metabolism to autophagy. Among the targets of the IRBITs is the Na + -HCO 3 − cotransporter NBCe1-B, which plays a central role in intracellular pH (pH i ) regulation and epithelial electrolyte transport. Here, we demonstrate that NAD modulates NBCe1-B activation by serving as a cofactor of IRBIT or L-IRBIT. Blocking NAD salvage pathway greatly decreases NBCe1-B activation by the IRBITs. Administration of the oxidized form NAD + enhances, whereas the reduced form NADH decreases NBCe1-B activity. Our study represents the first example in which the redox state of NAD, via IRBIT or L-IRBIT, modulates the function of a membrane transport protein. Our findings reveal a new role of NAD and greatly expand our understanding of NAD biology. Because the NAD redox state fluctuates greatly with metabolic status, our work provides insight into how, via the IRBITs, energy metabolism could affect pH i regulation and many other IRBIT-dependent processes.
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Particuology
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2025
·
IF 4.3
Lianghua Wang,Yang You,Zhen Li,Ningfei Yang,Haoran Luo,Mingliang Yuan
O3-type layered oxides are among the most promising cathode candidates for sodium-ion batteries, yet their practical use is constrained by irreversible oxygen redox at high voltages, parasitic side reactions, and pronounced moisture sensitivity. Here, we propose a one-step H 3 BO 3 treatment that introduces an in-situ boride complex, enabling near-surface B doping and the formation of a conformal sodium borate interphase. The dual modification operates synergistically: B incorporation reinforces the layered framework and suppresses oxygen redox above 4.0 V, while the sodium borate layer, endowed with high Na + conductivity, functions as a robust interfacial barrier. These effects collectively suppress transition-metal dissolution, mitigate electrolyte decomposition, and promote rapid Na + transport. Benefiting from this design, the optimized cathode delivers 160.5 mAh g -1 at 0.1C and retains 85.3% capacity after 200 cycles at 1C. Moreover, the sodium borate coating effectively blocks H + /H 2 O ingress, conferring exceptional air stability. After 150 cycles, 3-days-aged pristine cathode retains 4.7% of the fresh capacity, whereas optimized cathode maintains nearly pristine cycling stability. Even after seven days of exposure, only trace Na 2 CO 3 impurities are detected. This work establishes in situ boride complexes as a viable strategy to achieve electrochemically robust and moisture-tolerant sodium-ion cathodes for grid-scale energy storage.
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CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Fang-Yu Tao,Dan Xie,Wan-Yue Diao,Chang Liu,Godefroid Gahungu,Wen-Liang Li,Jing-Ping Zhang
Despite the dendrite growth and volume change faced by Na metal anodes (SMAs) can be suppressed by constructing sodiophilic three-dimensional (3D) skeleton, the long-term cycling stability of SMAs under harsh work conditions (>10 mA cm −2 ; >5 mA h cm −2 ) is still unsatisfactory. Herein, a gradient-structured sodiophilic carbon skeleton, composed of carbon foam decorated with gradient-distributed Ag nanoparticles (Ag NPs@CF), is elaborately designed to enable the stable operation of SMAs even in harsh work environments. Firstly, the gradient sodiophilic structure of Ag NPs@CF directionally regulates the Na + nucleation/growth behavior, homogenizing Na + flux and electric field near the electrode and inhibiting dendrites formation. Secondly, the sodiophilic Ag NPs promote the formation of gradient solid electrolyte interphase, enhancing the interfacial stability and expediting Na + transport kinetics at the interface. Furthermore, the open 3D structure of CF spatially confines Na deposition without volume change during cycling. Consequently, the Na-Ag NPs@CF symmetrical battery demonstrates stable cycling for over 2200h with an ultralow overpotential of 10.2 mV under harsh conditions of 10 mA cm −2 /10 mA h cm −2 . Meanwhile, the assembled Na-Ag NPs@CF||NVPOF full cells show superior rate capability and cycling stability. The gradient sodiophilic structure proposed in this work sparks new insights for designing high-performance SMAs.
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2025
·
IF 2.1
Jing Li,Linglin Fu,Zongde Ma,Jinniu Chen,Changhao Wu,Nan Zhang,Xudong Yu
To understand the interrelationships within the multi-ion coexisting sulfate system during the solid–liquid transformation of polyhalite in the Bieletan area, phase equilibria of ternary systems M, Ca2+//SO42–-H2O (M = Na+, K+, Mg2+) at 288.2 K were studied by the isothermal dissolution equilibrium method. The solubility and density of the equilibrium liquid phases of the system were measured experimentally, and the composition of the equilibrium solid phase at the ternary invariant point was determined by X-ray powder diffractometry. It is found that the ternary system K+, Ca2+//SO42–-H2O at 288.2 K forms the double salt syngenite (K2SO4·CaSO4·H2O), while the systems Na+, Ca2+//SO42–-H2O and Mg2+, Ca2+//SO42–-H2O at 288.2 K only form with the formation of CaSO4·2H2O and Na2SO4·10H2O (MgSO4·7H2O). Multitemperature comparison of the M, Ca2+//SO42–-H2O (M = Na+, K+, Mg2+) systems shows that the phase diagrams of Mg2+, Ca2+//SO42–-H2O are consistent at the selected temperature, only containing CaSO4·2H2O and MgSO4·nH2O (n = 1, 6, 7). While K+, Ca2+//SO42–-H2O and Na+, Ca2+//SO42–-H2O change from 288.2 and 298.2 to 348.2 K, the phase diagram forms double salt(s) K2SO4·5CaSO4·H2O (Na2SO4·5CaSO4·3H2O and Na2SO4·CaSO4).
研究领域:
化学热力学
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无机化学
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相平衡
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地球化学
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矿物加工
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Journal of Water Process Engineering
·
2025
·
IF 6.7
Junguo He,Yuanyi Zhao,Heliang Pang,Yili Wang,Lin Li,Yunlong Liu,Xinxin Cui,Tong Wei,Shengye Duan,Suiyin Yu
Sulfaquinoxaline sodium (SQ-Na), a veterinary sulfonamide antibiotic, poses potential risks to anaerobic digestion (AD) systems due to its antimicrobial properties, yet its impacts on methanogenic efficiency and microbial dynamics remain poorly understood. This study systematically evaluated the effects of SQ-Na (0–50 mg/L) on AD of simulated wastewater through batch experiments, integrating methane yield analysis, enzyme activity assays, 16S rRNA sequencing and metagenomic insights. Results demonstrated a dose-dependent inhibition of cumulative methane production, with 1 and 5 mg/L SQ-Na reducing yields to 41.21 % and 8.12 % of the control, respectively, while 20–50 mg/L caused near-complete stagnation. The modified Gompertz equation revealed prolonged lag phases (up to 53.52 % extension) and suppressed maximum methane production rates (Rmax). Function enzyme analyses indicated SQ-Na-induced adenosine triphosphatase (ATPase) inhibition (0.26–0.63–fold reduction) alongside accumulated Acetyl-CoA (A-CoA, 0.23–2.32 folds) and Coenzyme F 420 (F 420 , 0.48–2.52 folds), suggesting metabolic imbalance. Microbial shifts highlighted SQ-Na-driven suppression of acetoclastic methanogens (e.g., Methanosaeta ). Metagenomic evidence further pinpointed decreases in the abundance of methanogenesis-associated genes (e.g., EC 7.2.1.4, EC 2.8.4.1) and folate biosynthesis pathways, revealing an inhibition mechanism where SQ-Na competitively inhibits dihydropteroate synthase (EC 2.5.1.15), impairing the metabolic chain of energy, enzymes and function substances. This study offering critical data for optimizing SQ-Na-wastewater treatment and sustainable bioenergy recovery.
研究领域:
环境科学
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微生物学
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废水处理
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生物能源
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宏基因组学
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CERAMICS INTERNATIONAL
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2025
·
IF 5.6
Weichen Xu,Xiaomeng Li,Hong Wang,Fuliang Wang,Shouqiang Han,Jing Guo
Microwave dielectric ceramics are critical components in wireless communications. However, it is still a challenge to develop microwave dielectric ceramics with reduced sintering temperatures, high thermal stabilities and good dielectric properties at the same time. Herein, the entropy value, which is able to modulate the grain boundary energy and adjust the inherent sintering temperature, is engineered to develop high-performance microwave dielectric ceramics with low sintering temperatures. The structure-property relationships of AWO 4 ceramics, including (NaCaBi) 1/3 WO 4 , (NaCaSrBi) 1/4 WO 4 , (NaLiCaBiSm) 1/5 WO 4 and (NaLiCaSrBiSm) 1/6 WO 4 with increased entropy values are investigated systematically. X-ray diffraction and high-resolution TEM analyses confirm the formation of single-phase solid solutions with the tetragonal scheelite structure in AWO 4 ceramics. As the number of elements in the A-site varies, the relative permittivities, Q × f values and TCF values shift in the range of 12.2–16.5, 8,000–25,000 GHz and −32.3–31.6 ppm/°C, respectively. Simultaneously, the high-entropy samples demonstrate the lowest sintering temperature of 750 °C among the four formulations. Phillips-Van Vechten-Levine (PVL) complex chemical bond theory reveals that the covalency, lattice energy and bond energy affect the relative permittivity, Q × f value and TCF value, respectively. Raman spectra suggest that high entropy value leads to increased disorder, and infrared reflectivity spectra illustrate that the dielectric response is dominated by polarized optical phonons of [WO 4 ] tetrahedron. It is anticipated that entropy design will facilitate the development of microwave dielectric ceramics in low temperature co-fired ceramic applications.
研究领域:
材料科学
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陶瓷
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介电材料
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电子材料
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固态化学
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Materials Today Energy
·
2021
·
IF 7.311
Xingpeng Gao,Yingying Hu,Wenping Zha,Yanpei Li,Jingyi Wang,Hongjian Lai,Xiangwei Wu,Jianhua Yang,Chunhua Chen,Zhaoyin Wen
Na-metal halide batteries are regarded as one of the most promising candidates for large-scale energy storage systems owing to their high energy density and high safety. However, the problems of low kinetics and poor stability caused by the low-conductive chlorides have restricted the development of Na-metal halide batteries. Here, we design a facile approach that combines electrospinning and electrodeposition to prepare electrodes with a nanostructured composite containing carbon nanofibers and Ni-Fe alloy (CNF@Ni-Fe alloy). It is confirmed that the Ni-Fe alloy can stably be oxidized and reformed when discharges from 2.36 V to 2.32 V. Benefiting from the unique nanoscale arrangement of Ni-Fe, the heterogeneous distribution of FeCl 2 and NiCl 2 effectively overcomes the block of low-conductive chlorides. Furthermore, the coreaction of Ni 2+ and Fe 2+ directly decreases the polarization potential, resulting in the improvement of reaction kinetics. Notably, batteries with the CNF@Ni-Fe alloy display a high specific capacity of 199.7 mAh g −1 and a capacity retention rate of 99% after 50 cycles at 0.6 C. The CNF@Ni-Fe alloy cathodes also deliver long-term stability with 104.5 mAh g −1 capacity retention after 600 cycles at 2 C and a good rate capability of 5 C.
研究领域:
材料科学
·
能源存储技术
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JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2018
·Vol. 165
·期 11
·A2815
·
IF 3.662
Huijie Zhang,Lili Wu
Manganese dioxide has been considered to be one of the most attractive electrode materials for electrochemical energy storage applications owing to its high theoretical specific capacitance, low cost, abundant natural reserves and eco-friendliness. However, MnO2 has poor conductivity, which limits rate capability, and thus hinders the application of MnO2 in energy storage. Here we attempt to take advantage of cobalt-based metal organic frameworks derived nanoporous carbon (MOF-NPC) to improve the electrochemical performance of MnO2-based composite electrodes. We fabricated Na+-MnO2/MOF-NPC hybrid electrode by a simple redox reaction method. Accordingly, the hybrid electrode reaches a specific capacitance of 217.0 F g−1, which is significantly better than that of the individual components. Then the contribution of capacitance and diffusion to the whole is analyzed quantitatively. The capacitance retains 82.80% when the current density increases from 2 A g−1 to 20 A g−1. After 5000 cycles, the total capacitance loss is only 9%. Moreover, an asymmetric supercapacitor is assembled using Na+-MnO2/NPC composite and activated carbon as positive and negative electrodes, respectively. The asymmetric supercapacitor has the capacitance retention of 82% after 3000 cycles. These results provide a promising direction for designing high-performance supercapacitors.
研究领域:
材料科学
·
电化学
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Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 44
·25268-25273
·
IF 10.733
Jun Han,Kunjie Zhu,Pei Liu,Yuchang Si,Yujun Chai,Lifang Jiao
Herein, the preparation of CoSb nanoparticles embedded in carbon nanofibers with a raised surface (N-doped CoSb@C nanofibers) via the electrospinning method is reported for the first time. The distinct structure facilitates the pseudocapacitive behaviors, which is the key to obtain fast kinetics and long cyclability. N and Co elements can not only optimize the electronic configuration but also buffer the volume changes of the material during cycling. For potassium-ion batteries, the capacity maintains 250 mA h g−1 after 500 cycles at 1 A g−1, and for sodium-ion batteries, the capacity keeps 413 mA h g−1 after 1000 cycles at 1 A g−1. Thus, this work makes a great contribution towards exploring high-capacity anodes for practical potassium-ion batteries and sodium-ion batteries.
研究领域:
材料科学
·
能源存储与转换
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Advanced Science
·
2026
·
IF 14.1
Ya-Meng Yin,Qinxia Liu,Zhiyuan Zhang,Weixiao Wang,Cunyuan Pei,Fangyu Xiong,Jinghui Chen,Qinyou An,Cai-Hong Yang,Dong-Sheng Li
The instability of the cathode electrolyte interface (CEI) under high voltage and elevated temperature poses a major challenge to the practical application of Na 3 V 2 (PO 4 ) 2 O 2 F (NVOPF) cathodes in sodium-ion batteries (SIBs). To overcome this issue, we introduce a dual-functional AlF 3 coating that effectively stabilizes the interface while improving bulk electronic conductivity. The AlF 3 -modified NVOPF@C exhibits exceptional cycling stability at 55°C, maintaining 84.9% capacity after 1000 cycles at 10 C in half cells and 96.8% at 5 C in full cells using hard carbon anodes. Detailed characterization reveals that the AlF 3 coating promotes the formation of a robust, inorganic-rich CEI, primarily composed of a NaF/AlF 3 /NaAlF 4 ternary fluoride composite. This newly constructed CEI layer not only acts as a protective barrier to suppress detrimental interfacial side reactions but also serves as an efficient ionic conductor to facilitate Na + diffusion. In addition, the AlF 3 coating induces the creation of F─Al─O bridging bonds with surface oxygen groups, which collaborate with carbon nanotubes to establish a highly continuous conductive network that enables efficient electron transfer. These findings underscore the crucial significance of constructing a stable inorganic-dominated CEI and continuous conductive pathways for developing high-rate and thermally stable SIBs.
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NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 5
·3350-3355
·
IF 3.201
Ailijiang Abudurusuli,Kui Wu,Shilie Pan
Four new quaternary chalcogenides A2Ba7Sn4Q16 (A = Li, Na; Q = S, Se) were successfully synthesized in vacuum-sealed silica tubes for the first time. All of them crystallize in the noncentrosymmetric (NCS) cubic I3d space group with the cell parameters ranging from 14.807 to 15.4163 Å and Z = 4, respectively. Interestingly, their isostructures are different from the structural transformations (from tetragonal to trigonal) appearing in previously reported Na2BaSnQ4 compounds. As observed in their structures, (Na/Ba)Q4 and SnQ4 units alternately connect with each other by sharing corners to build a three-dimensional (3D) framework structure with charge-balanced Ba cations located within tunnels, which is different from the observation that the Na atoms located inside the tunnels formed by the interconnection of the BaS8 and SnS4 units in Na2BaSnS4. Optical properties (diffuse-reflection, IR, and Raman spectra) were also systematically studied and the results indicate that their optical bandgaps are in the range from 1.75 to 2.5 eV. Moreover, the second harmonic generation (SHG) responses of the title compounds were also measured to be about 0.1–0.5 times higher than that of benchmark AgGaS2 under 2.09 μm radiation.
研究领域:
材料科学
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无机化学
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非线性光学
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晶体学
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