THERMOCHIMICA ACTA
·
2023
·
IF 3.5
Lijuan Yan,Baozhong Zhu,Xiaohan Yan,Wenhua Wang,Jiuyu Chen,Jun Liu,Yunlan Sun
Boron (B) is an ideal fuel due to its high mass and volumetric calorific values. However, its high ignition temperature and poor combustion efficiency affect its wide use in propellants. Nickel oxide (NiO) has been found to possess strong catalytic activity as a metal oxide in a transition state. In this study, composites of three different particle sizes of B particles and various concentrations of NiO were prepared. Thermal analysis, combustion process, and combustion mechanisms were investigated. Modifying B with NiO can decrease the initial oxidation temperature and ignition temperature. The flame temperature and combustion efficiency are increased after B powder is modified by NiO. The mechanism of the combustion reaction was further investigated to gain a deeper understanding of the NiO-catalyzed B oxidation process.
研究领域:
材料科学
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燃烧学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Xiaogang Guo,Taotao Liang,A. Segun Giwa
Development of the structural, anti-wetting and exothermic stability of composite metal based-energetic composite is still a great challenge, especially used in complex environments (e.g. moisture circumstances). Thus, this paper firstly proposed electrophoretic controlled assembly (ECA) technique and facile modification process to construct the multifunctional nano-Al based NiO/perfluorosilane energetic composite films with even distribution of nanoscale particles and triple (a: microstructure, b: anti-wetting and c: exothermic performance) stability of for three years. The ECA dynamics study of Al/NiO particles was deeply explored as a “controlled bridge” to adjusting the reaction ratio of Al to NiO in product. The target film displays an outstanding high water contact angle of 171 ± 1° with an almost perfect sphere of droplet placed on that surface, and shows a small fluctuation of anti-wetting ability after immersed and exposure tests. In addition, the total heat output (Q) of product can reach up to ~2.5 kJ/g with a low activation energy of 247.624 kJ/mol, and shows ultra-long exothermic stability for three years. The realization of target film highly compatible with microelectromechanical systems (MEMS) here will largely improve the safety level of propellant or detonator system.
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
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2019
·
IF 14.229
Lindong Liu,Ying Wang,Qian Liu,Wenju Wang,Lian Duan,Xiao Yang,Shixiong Yi,Xuting Xue,Jiangwei Zhang
Understanding how the morphology of a nanocatalyst tailors its catalytic performance is a crucial issue for the rational design and fabrication of active heterogeneous catalysts at the nanometer level. Herein, we demonstrate novel findings of peroxydisulfate (S 2 O 8 2− ; PDS) activation catalyzed by nickel oxide (NiO) nanocatalysts of different morphologies, in which oxygen vacancies ( V O ) were the defective sites that facilitated the chemical bonding with PDS molecules and promoted the reactivity of V O -connected nickel ions for PDS activation, thus elucidating the structural origin of its catalytic activities. The morphologically tunable NiO with various V O concentrations exhibited different catalytic performance for the removal of phenol (a model organic pollutant). Based on an electron paramagnetic resonance (EPR) study, radical competition reactions, and quenching tests, the main reactive species was revealed to be the non-radical PDS-NiO complex, which can effectively attack C 6 H 5 O − to yield intermediates attached to NiO surface. This work not only improves the fundamental understanding of active sites in morphologically tunable transition metal oxides, but also provides valuable guidelines for the rational design and synthesis of high-performance, morphology-dependent nanocatalysts.
研究领域:
催化
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环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2023
·Vol. 308
·期 7
·2200669
·
IF 3.9
Ju Fu,Hanna He,Li Zeng,Dan Luo,Chuhong Zhang
The blooming requirement of high-performance energy storage systems has aroused the thirst for advanced energy storage materials. As a high capacity anode, however, the application of NiO nanoparticles (NiO NPs) is hindered by intractable issues of dramatic volume change, intrinsic low electronic conductivity, and severe aggregation tendency during lithiation/delithiation. Herein, a polydopamine (PDA) assisted bi-functionalization strategy for fabricating of PDA@NiO-CNT composites for fast and durable lithium storage is reported. In this composite, CNTs intertwine to form a network to ensure sufficient electrolyte infiltration and act as a highly conductive system to motivate fast charge transmission. The strong binding affinity of PDA facilitates bonding between NiO NPs and CNTs, which not only forms uniform and flexible PDA coating but also ensures homogeneous distribution of NiO NPs on CNTs network. Therefore, the bi-functional modified PDA@NiO-CNT electrode possesses high conductivity, alleviates volume change and aggregation of NiO NPs during cycling, achieves a reversible capacity of 1326 mAh g −1 at 100 mA g −1 , a rate capability of 215 mAh g −1 at 2000 mA g −1 and a cycling stability with 78% capacity retention after 250 cycles. This bi-functional modification approach manifests its prospective potential for architecting other electrode materials toward high-performance electrochemical devices.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Fang Wang,Qixiang Huang,Jiangzhuo Ren,Biying Zhang,Fangya Guo,Liangbin Xia,Ting Feng,Zhouqiu Jia,Shuoyang Wang,Fengzhang Ren,Zixu Sun,Andreu Cabot
Optimizing the nickel-based heterojunction catalysts during overall water splitting remains a significant challenge. Herein, based on metastable ion etching engineering, a trace amount of Fe-doped Ni/Ni(OH) 2 nanotube array coated with carbon (FNNA@C/NF) is successfully synthesized. Specifically, a small amount of Fe 3+ , generated from the partial oxidation of Fe 2+ , selectively etches the grain boundaries of the Ni metal substrate, resulting in the formation of a unique nanotube structure. Electrochemical test results demonstrate that it has exceptional hydrogen evolution reaction activity (29.7 mV–10 mA cm −2 ) and oxygen evolution reaction activity (300.1 mV–100 mA cm −2 ), along with stable operation for 100 h at a current density of 100 mA cm −2 during overall water splitting. The outstanding performance is primarily attributed to the Fe-doped Ni/Ni(OH) 2 heterojunction, obtained through mild pyrolysis, optimizes electron transfer and enhances interfacial reaction kinetics. Meanwhile, the unique nanotube array structure increases the active surface area and improves interfacial mass transfer efficiency. This work offers novel insights and theoretical guidance for designing high-performance nickel-based heterojunction catalysts.
研究领域:
材料科学
·
电化学
·
能量转换
·
纳米技术
·
催化
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL TOXICOLOGY
·
2022
·Vol. 37
·期 5
·1093-1103
·
IF 4.109
Fengfan Liu,Xiang Cheng,Shuang Wu,Bei Hu,Chen Yang,Shufen Deng,Qiwen Shi
Exposure to nickel oxide nanoparticles (NiONPs), which have been widely produced and applied in industry, leads to adverse pulmonary and systemic effects. The aim of this study is to investigate the involvement of apoptosis and ferroptosis in NiONPs-induced acute lung injury (ALI). Intratracheal instillation of NiONPs into mice elevated the levels of pro-inflammatory cytokines, neutrophils, and proteins in the bronchoalveolar lavage fluid, and triggered apoptosis and ferroptosis in the lung tissues. Consistently, NiONPs-induced apoptosis and ferroptosis were observed in in vitro experiments using human lung epithelial cells. Activating transcription factor 3 (ATF3), a stress-inducible transcription factor, was upregulated by NiONPs exposure in both murine lung tissues and human lung epithelial cells. Moreover, human lung epithelial cells with ATF3 deficiency exhibited a lower level of apoptosis and ferroptosis when exposed to NiONPs. Collectively, our findings demonstrated that ATF3 was responsive to NiONPs exposure, and promoted NiONPs-induced apoptosis and ferroptosis in lung epithelial cells, indicating that ATF3 is a potential biomarker and therapeutic target for NiONPs-associated ALI.
研究领域:
毒理学
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肺科学
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分子生物学
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细胞生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
iScience
·
2023
·
IF 5.8
Ying Zhang,Yuying Wan,Xiaoxu Liu,Kai Chen,Ke Chu
Electrocatalytic reduction of nitrite to ammonia (NO 2 RR) is considered as an appealing route to simultaneously achieve sustainable ammonia production and abate hazardous nitrite pollution. Herein, atomically Nb-doped NiO nanoflowers are designed as a high-performance NO 2 RR catalyst, which exhibits the highest NH 3 -Faradaic efficiency of 92.4% with an NH 3 yield rate of 200.5 μmol h -1 cm -2 at -0.6 V RHE. Theoretical calculations unravel that Nb dopants can act as Lewis acid sites to render effective NO 2 - activation, decreased protonation energy barriers, and restricted hydrogen evolution, ultimately leading to a high NO 2 RR selectivity and activity.
研究领域:
材料科学
·
环境科学
·
催化化学
✓ 已验证
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2014
·
IF 3.84
Xiaogan Li
Pure mesoporous TiO 2 microspheres based chemoresistive gas sensors showed response to several organic volatile compounds (VOCs) such as formaldehyde, methanol, ethanol, ammonia and acetone under the UV illumination in the humid air at room temperature . With the loading of NiO at the porous surface of TiO 2 microspheres, the sensor indicated a different sensing property. The sensor using 10 wt% NiO-wrapped mesoporous TiO 2 composite microspheres showed a good sensitivity to different concentrations of ammonia from 10 ppm to 100 ppm whereas almost no response to other VOCs indicating an excellent selectivity to detect ammonia in the humid air with UV illumination at room temperature.
研究领域:
材料科学
·
化学传感器
✓ 已验证
产品关联
DOI
高影响因子
SYNTHETIC METALS
·
2015
·
IF 2.252
Xiucui Ji,Qiang Xu,Ting Zhou,Xiaotong Wang,Hui Xu,Xue Yao,Wei Lan,Yong Kong
Poly(aniline- co - m -aminophenol)(PANMA)/graphene/NiO nanocomposite was synthesized and applied as a supercapacitor electrode for the first time. Graphene/NiO nanocomposite was first synthesized via a hydrothermal synthesis method from Ni(NO 3 ) 2 ·6H 2 O, urea, and graphite oxide. NiO nanoparticles were distributed uniformly on both sides of the graphene. Then, PANMA was deposited in situ on the surface of the graphene/NiO nanocomposite via the copolymerization of aniline and m -aminophenol. The obtained nanocomposite has a similar porous morphology with that of PANMA. Experimental results indicate that the synergistic contributions from PANMA, graphene and NiO enable the composite electrode with substantially improved energy storage performance metrics. The nanocomposite shows a high specific capacitance of 562 F g −1 at a current density of 0.5 A g −1 , a good rate capability even at high current densities and a better long-term cycling stability.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yang Sun,Fan Yang,Siyuan Sun,Kexin Wei,Ye Wang,Guang Ma,Junpu An,Junwei Yuan,Meitong Zhao,Jiahui Liu,Hongchen Liu,Yongfeng Li
Developing high-performance and low-cost electrodes for hydrogen and oxygen evolution reactions (HER and OER, respectively) represents a pivotal challenge in the field of water electrolysis. Herein, W doped NiFe LDH nanosheets (NiFe-W x /NF) were immobilized on nickel foam (NF) through one-step corrosion engineering, which induced the coexistence of α-Ni(OH) 2 and β-Ni(OH) 2 . The doping of large atomic radius W influenced the growth of crystal planes of Ni(OH) 2 , promoting the formation of α-Ni(OH) 2 , which results in large layer spaces and neatly arranged nanosheets structure. The optimized NiFe-W 0.5 /NF catalyst require potentials of only 69 to attain 10 mA/cm 2 for HER, and require overpotentials of 269 mV to reach 100 mA/cm 2 current density for OER, respectively. The W 6+ with high oxidation state can withdraw neighboring electrons from Ni, altering the adsorption energy of hydrogen intermediates, which improves the Volmer step and electrical conductivity in HER. And the large layer space of α-Ni(OH) 2 in NiFe-W 0.5 /NF can be contributed to accelerating the formation of high valence γ-NiOOH, which can accelerate OER kinetics. In addition, the NiFe-W 0.5 /NF catalyst also provides an overall water splitting activity of 780 mA/cm 2 current density at a cell voltage of only 1.90 V, and remains highly stable for over 70 h at 100 mA/cm 2 , which makes it a bifunctional efficient catalyst for water electrolysis.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Man Zhao,Zimei Fu,Wei Wen,Yuhong Chang,Wenxiang Wang,Meng Bai,Xiaoli Li,Li Zhang,Junming Zhang,He Xiao,Jianfeng Jia
Up to now, nickel-based materials have been considered as the most promising catalysts for urea oxidation reaction (UOR). However, the inevitable self-oxidation from Ni 2+ to Ni 3+ severely limited their activity during UOR. To trigger the UOR occurred before self-oxidation of Ni species by altering reaction pathways, here synergistic dual-site of Cu 3 P-NiO x on black phosphorus (BP) nanosheets is constructed by a facile self-designed electrosynthesis method, where exfoliation of bulky BP into nanosheets and formation of multivalent Ni or Cu precursor are both obtained during electrosynthesis process. The best Cu 3 P-NiO x /BP shows the potential of 1.378 V under light irradiation at 10 mA cm −2 (without IR compensation), 187 mV lower than that in oxygen evolution reaction. This UOR activity of Cu 3 P-NiO x /BP is superior to Cu 3 P/BP or NiO x /BP, which is attributed to synergistic dual-site constructure of Cu 3 P-NiO x . In-situ and ex-situ characterizations suggest that in-situ generated Cu 3 P promotes adsorption and activation of urea molecules, and takes synergistic effect with NiO x , which makes urea oxidation undergoes a direct complete oxidation process. Moreover, with application of light illumination, excited photoelectrocatalytic effect by Cu 3 P further greatly enhances the activity for UOR. This study provides insights to the designing principles for optimizing reaction pathways toward small nucleophile molecule oxidation and effective strategies to develop efficient UOR photoelectrocatalysts.
研究领域:
材料科学
·
电化学
·
催化反应
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Yuxiao Jiang,Kelin Hu,Jing Zhang,Tao He,Bin Yu,Xinyuan Li,Jiarong Yang
This research focused on the synthesis of In 2 O 3 /Ni x O y nanocomposites utilizing the conventional template method. The resulting gas sensor, designed for H 2 detection, demonstrates a sensing behavior that is dependent on temperature. Various characterization techniques were employed to analyze the synthesized In 2 O 3 /NiO composite materials. The results obtained from tests conducted at different temperatures reveal that the sensor maintains a stable n-type response for H 2 at temperatures exceeding 240°C, while exhibiting an atypical p-type response at lower temperatures. This transition in adsorption behavior enables the In 2 O 3 /Ni x O y composites to function as a dual-mode sensor capable of detecting H 2 . The temperature-induced transformation is likely attributable to the interplay of several mechanisms. This article elucidates this phenomenon by examining factors such as activation energy, TGA/DSC, adsorbed oxygen, heterojunction formation, and humidity effects. This study contributes to the understanding of the transformation mechanisms underlying MOS gas sensing behavior.
研究领域:
材料科学
·
传感器技术
·
物理化学
✓ 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）