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The preparation, characterization, and catalytic performance of porous fibrous LaFeO
Zhifei Wu, Li Wang, Yixiao Hu, Hui Han, Xing Li, Ying Wang
《化学科学与工程前沿(英文)》 2020年 第14卷 第6期 页码 967-975 doi: 10.1007/s11705-020-1922-0
关键词: NO oxidation porous fibrous LaFeO3 sunflower seed shell
《化学科学与工程前沿(英文)》 2023年 第17卷 第11期 页码 1707-1717 doi: 10.1007/s11705-023-2308-x
关键词: nanoparticle sulfur vacancy porous carbon nanofiber transition metal sulfides electrolysis
Dong Yang, Xiaoyan Zou, Yuanyuan Sun, Zhenwei Tong, Zhongyi Jiang
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 440-449 doi: 10.1007/s11705-018-1700-4
In recent years, much effort has been focused on the development of the photocatalysts with high performance under visible light irradiation. In this paper, three-dimensional porous La-doped SrTiO3 (LST) microspheres were prepared by a modified sol–gel method, in which the agarose gel/SrCO3 microsphere and La2O3 were employed as the template and the La resource, respectively. The as-prepared LST microspheres exhibit a porous structure with a diameter of about 10 µm and a surface pore size of about 100 nm. The La element was doped into the crystal lattice of SrTiO3 by the substitution of La3+ for Sr2+. Therefore, the absorption edge of LST samples shifts toward the visible light region, and their photocatalytic activity for the Cr(VI) reduction is enhanced under visible light. Among all LST samples, LST-0.5 (the La3+ doping content is 0.5 wt-%) exhibited the highest visible-light photocatalytic activity, which can reduce 84% Cr(VI) within 100 min. This LST materials may become a promising photocatalyst for the facile treatment of wastewater containing poisonous heavy metal ions.
关键词: SrTiO3 La3+ doping porous microsphere visible-light photocatalysis Cr(VI) reduction
Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition
Huan Liu, Zhen Ma
《化学科学与工程前沿(英文)》 2017年 第11卷 第4期 页码 586-593 doi: 10.1007/s11705-017-1659-6
关键词: Rh2O3 CePO4 N2O decomposition
Mingyu Pi, Xiaodeng Wang, Dingke Zhang, Shuxia Wang, Shijian Chen
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 425-432 doi: 10.1007/s11705-018-1726-7
Self-standing porous WP2 nanosheet arrays on carbon fiber cloth (WP2 NSs/CC) were synthesized and used as a 3D flexible hydrogen evolution electrode. Because of its 3D porous nanoarray structure, the WP2 NSs/CC exhibits a remarkable catalytic activity and a high stability. By using the experimental measurements and first-principle calculations, the underlying reasons for the excellent catalytic activity were further explored. Our work makes the present WP2 NSs as a promising electrocatalyst for hydrogen evolution and provides a way to design and fabricate efficient hydrogen evolution electrodes through 3D porous nano-arrays architecture.
关键词: WP2 nanosheet arrays hydrogen evolution electrocatalyst flexible electrode
源于蛋清的新型分层轻质多孔碳用于高效微波吸收 Article
刘宗林, 赵旭, 徐亮亮, 彭庆宇, 赫晓东
《工程(英文)》 2022年 第18卷 第11期 页码 161-172 doi: 10.1016/j.eng.2022.04.026
鸡蛋羹是一种在餐桌上常见的菜肴,在冷冻干燥后可得到均匀的多孔结构。鸡蛋羹中的蛋白质提供了丰富的碳和氮元素,并且鸡蛋羹的独特微观结构和可调节的电学参数使它成为一种潜在的多孔碳前驱体。本文以蛋清作为原材料,氮原位掺杂的多孔碳(NPC)和碳酸钾改性的NPC(PNPC)是通过一个简单的凝胶和碳化过程制备得到的。多孔碳的独特形貌继承于蛋白质,包括纤维簇、蜂窝孔和布满沟槽的骨架。这些结构具有优异的阻抗匹配和高效的内部损耗性能,使得到的多孔碳成为优异的无需金属元素掺杂的轻质电磁波吸收材料。作为多孔碳的代表之一,PNPC10-700 具有包括纤维簇、蜂窝孔和多孔骨架的多重
结构。并且,PNPC10-700 具有最大反射损耗值(66.15 dB;厚度为3.77 mm)和一个宽达5.82 GHz的有效吸收频段(从12.18 GHz到18 GHz,厚度为2.5 mm),这远超大部分文献中报道的数值。因此蛋清(蛋白质)的凝胶和后续碳化的结合是一种用于设计多孔碳吸波材料微观形貌和电磁性能的新方法。
含稀释剂的Al-Cr<sub>2sub>O<sub>3sub>体系燃烧合成反应热力学分析与反应模型
张衍诚,潘冶,张传
《中国工程科学》 2004年 第6卷 第6期 页码 63-67
对含稀释剂Al203和Cr<sub>2</sub>0<sub>3</sub>的Al-Cr<sub>2</sub>0<sub>3</sub>体系燃烧合成反应进行了热力学计算与分析,讨论了起始反应温度T<sub>0</sub>、稀释剂Al<sub>2</sub>O<sub>3</sub>和Cr<sub>2</sub>O<sub>3</sub>的含量对绝热反应温度7^的影响,并得出T<sub>0</sub>与T<sub>ad</sub>在特定温度段上的近似线性关系以及该关系在指导材料成分设计上的应用;揭示了反应驱动力—&mdash
关键词: 金属陶瓷 燃烧合成 Al-Cr203体系 热力学 反应模型
《能源前沿(英文)》 2023年 第17卷 第5期 页码 654-663 doi: 10.1007/s11708-023-0885-5
关键词: photocatalytic hydrogen production wide-spectrum response metal sulfides MOFs derivative heterogeneous interfacial contact
The stabilization effect of Al<sub>2sub>O<sub>3sub> on unconventional Pb/SiO<sub>2sub> catalyst
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1423-1429 doi: 10.1007/s11705-023-2315-y
关键词: Pb/SiO2 Al2O3 propane dehydrogenation propene stability
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1399-1411 doi: 10.1007/s11705-023-2345-5
关键词: CePO4 CeVO4 Ce2(SO4)3 selective catalytic reduction NO removal
Fabrication of coconut shell-derived porous carbons for CO adsorption application
《化学科学与工程前沿(英文)》 2023年 第17卷 第8期 页码 1122-1130 doi: 10.1007/s11705-022-2292-6
关键词: porous carbons CO2 adsorption KOH activation single step reaction biomass
《化学科学与工程前沿(英文)》 2023年 第17卷 第11期 页码 1741-1754 doi: 10.1007/s11705-023-2332-x
关键词: Co3O4/ZSM-5 NOx-SCR by NH3 monolayer dispersion threshold effect surface acid sites surface active O2– anions
Kechao Zhao,Zhenhua Li,Li Bian
《化学科学与工程前沿(英文)》 2016年 第10卷 第2期 页码 273-280 doi: 10.1007/s11705-016-1563-5
关键词: Mn promotion nickel catalysts CO2 methanation co-methanation of CO and CO2
Is atmospheric oxidation capacity better in indicating tropospheric O formation?
《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-022-1544-5
● This study summarizes and evaluates different approaches that indicate O3 formation.
关键词: O3 AOC O3 formation regime
Al<sub>2sub>O<sub>3sub>-M<sub>xsub>O<sub>ysub>硬面陶瓷涂层的喷焊制备及性能研究
王飚,王宇栋,李慧玲,张自华
《中国工程科学》 2002年 第4卷 第9期 页码 75-80
在碳钢母材上,用氧乙炔焰喷焊镍包铝合金粉末制取预涂层,喷焊50% Al<sub>2sub>O<sub>3sub>+50% Ni的复合粉末制取过渡层,用等离子喷焊Al<sub>2sub>O<sub>3sub> - M<sub>xsub>O<sub>ysub>复合粉末制取最终涂层。
关键词: Al<sub>2sub>O<sub>3sub>-M<sub>xsub>O<sub>ysub> 涂层 等离子 抗腐蚀 抗磨损
标题 作者 时间 类型 操作
The preparation, characterization, and catalytic performance of porous fibrous LaFeO
Zhifei Wu, Li Wang, Yixiao Hu, Hui Han, Xing Li, Ying Wang
期刊论文
Sulfur-deficient CoNi<sub>2sub>S<sub>4sub> nanoparticles-anchored porous carbon nanofibers as bifunctional
期刊论文
Fabrication of three-dimensional porous La-doped SrTiO3 microspheres with enhanced visible light catalytic
Dong Yang, Xiaoyan Zou, Yuanyuan Sun, Zhenwei Tong, Zhongyi Jiang
期刊论文
Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition
Huan Liu, Zhen Ma
期刊论文
A 3D porous WP2 nanosheets@carbon cloth flexible electrode for efficient electrocatalytic hydrogen evolution
Mingyu Pi, Xiaodeng Wang, Dingke Zhang, Shuxia Wang, Shijian Chen
期刊论文
In-MOF-derived In<sub>2sub>S<sub>3sub>/Bi<sub>2sub>S<sub>3sub> heterojunction for enhanced photocatalytic
期刊论文
The stabilization effect of Al<sub>2sub>O<sub>3sub> on unconventional Pb/SiO<sub>2sub> catalyst
期刊论文
acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH<sub>3sub>
期刊论文
On the monolayer dispersion behavior of Co<sub>3sub>O<sub>4sub> on HZSM-5 support: designing applicable
期刊论文
CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts
Kechao Zhao,Zhenhua Li,Li Bian
期刊论文