研究成果：
1、贵金属纳米晶合成方法学
贵金属纳米晶具有规整的形状与表面结构，为分析化学发展新方法提供广阔机遇。我们通过分离纳米晶的成核和生长过程，解决了金属纳米晶生长可控性差的难题，并阐明大尺寸晶种具有“晶种-纳米晶”结构继承性规律。通过调控纳米晶生长中的热力学与动力学，在国际上率先合成出多种具有高度均一性的贵金属纳米晶（JACS 2009, 131, 697；2014, 136, 3010；2015, 137, 10460；2017, 139, 5817；ACIE 2015, 54, 8271），并显著提高了其在电分析化学和光谱分析化学应用中的灵敏度与重现性。
2、贵金属纳米晶相工程
我们聚焦纳米材料晶相工程研究，探索如何合成不同晶相的金属纳米材料，以及了解晶相变化所产生的独特物理化学特性。在晶相工程研究中，如何合成特殊孪晶结构的纳米材料是重要挑战之一。我们通过晶相工程，以亚稳态4H六方晶相的金纳米带为模板，合成了风筝形状的金纳米材料，并在其中首次发现了具有非密排 {101 ？2} 和 {101 ？6}孪晶面的特殊孪晶结构，从而拓展了贵金属孪晶结构的研究范围，为设计贵金属功能纳米材料提供了新的路径（Nat. Commun. 2019, 10, 2881）。
相关文献：
1. Haibo Bao, Fengxia Wu, Fenghua Li, Ling Zhang, Yali Yu, and Guobao Xu, Wenxin Niu*, Dual roles of underpotential deposition in the synthesis of tetrahexahedral Pd-Ag alloy nanocrystals, Chem. Commun., 2020, DOI: 10.1039/D0CC06090A.
2. Weiqing Zhang, Yongli Shen, Fangjie Pang, Darren Quek, Wenxin Niu*, Wenjun Wang, Peng Chen*, Facet-dependent catalytic performance of Au nanocrystals for electrochemical nitrogen reduction, ACS Appl. Mater. Interfaces, 2020, 12, 41613-41619.
3. Wenxin Niu, Jiawei Liu, Jingtao Huang, Bo Chen, Qiyuan He, An-Liang Wang, Qipeng Lu, Ye Chen, Qinbai Yun, Jie Wang, Cuiling Li, Ying Huang, Zhuangchai Lai, Zhanxi Fan, Xue-Jun Wu, and Hua Zhang*, Unusual 4H-phase twinned noble metal nanokites, Nat. Commun. 2019, 10, 2881.
4. Fengxia Wu, Ling Zhang, Jianping Lai, Rafael Luque, Wenxin Niu*, Guobao Xu*, Modulating the oxophilic properties of inorganic nanomaterials for electrocatalysis of small carbonaceous molecules, Nano Today, 2019, 29, 100802.
5. Fengxia Wu, Ling Zhang, Jianping Lai, Wenxin Niu*, Rafael Luque*, Guobao Xu*, PtCu-O highly excavated octahedral nanostructures built with nanodendrites for superior acohol electroxidation, J. Mater. Chem. A, 2019, 7, 8568-8572.
6. Wenxin Niu*, Yukun Duan, Zikun Qing, Hejin Huang, and Xianmao Lu*, Shaping gold nanocrystals in dimethyl sulfoxide: Towards trapezohedral and bipyramidal nanocrystals enclosed by {311} facets. J. Am. Chem. Soc. 2017, 139, 5817-5826.
7. Wenxin Niu, Yi An Alvin Chua, Weiqing Zhang, Hejin Huang, and Xianmao Lu*, Highly symmetric gold nanostars: Crystallographic control and surface-enhanced Raman scattering property. J. Am. Chem. Soc. 2015, 137, 10460-10463.
8. Wenxin Niu, Yongjun Gao, Weiqing Zhang, Ning Yan*, Xianmao Lu*, Pd–Pb alloy nanocrystals with tailored composition for semihydrogenation: Taking advantage of catalyst poisoning. Angew. Chem. Int. Ed. 2015, 54, 8271-8274.
9. Wenxin Niu, Weiqing Zhang, Shaik Firdoz, and Xianmao Lu*, Dodecahedral gold nanocrystals: The missing Platonic shape. J. Am. Chem. Soc. 2014, 136, 3010-3012.
10. Wenxin Niu, Weiqing Zhang, Shaik Firdoz, and Xianmao Lu*, Controlled synthesis of palladium concave nanocubes with sub-10-nanometer edges and corners for tunable plasmonic property. Chem. Mater. 2014, 26, 2180-2186.
论文著作：
1. Selective Synthesis of Single-Crystalline Rhombic Dodecahedral, Octahedral, and Cubic Gold Nanocrystals.
Wenxin Niu; Shanliang Zheng; Dawei Wang; Xiaoqing Liu; Haijuan Li; Shuang Han; Jiuan Chen; Zhiyong Tang; Guobao Xu
Journal of the American Chemical Society, 2008
2. Surface Plasmon-Driven Water Reduction: Gold Nanoparticle Size Matters
Kun Qian; Brendan C. Sweeny; Aaron C. Johnston-Peck; Wenxin Niu; Jeremy O. Graham; Joseph S. DuChene; Jingjing Qiu; Yi-Chung Wang; Mark H. Engelhard; Dong Su; Eric A. Stach; Wei David Wei
Journal of the American Chemical Society, 2014
3. Highly Symmetric Gold Nanostars: Crystallographic Control and Surface-Enhanced Raman Scattering Property
Wenxin Niu; Yi An Alvin Chua; Weiqing Zhang; Hejin Huang; Xianmao Lu
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015
4. Crystal Phase-Based Epitaxial Growth of Hybrid Noble Metal Nanostructures on 4h/fcc Au Nanowires
Qipeng Lu; An-Liang Wang; Yue Gong; Wei Hao; Hongfei Cheng; Junze Chen; Bing Li; Nailiang Yang; Wenxin Niu; Jie Wang; Yifu Yu; Xiao Zhang; Ye Chen; Zhanxi Fan; Xue-Jun Wu
Nature Chemistry, 2018
5. Solvothermal Synthesis of Metal Nanocrystals and Their Applications
Jianping Lai; Wenxin Niu; Rafael Luque; Guobao Xu
NANO TODAY, 2015
6. Seed-mediated Growth of Noble Metal Nanocrystals: Crystal Growth and Shape Control
Wenxin Niu; Ling Zhang; Guobao Xu
Nanoscale, 2013
7. Crystallographic Control of Noble Metal Nanocrystals
Wenxin Niu; Guobao Xu
Nano today, 2011
8. Heterophase Fcc-2H-fcc Gold Nanorods
Zhanxi Fan; Michel Bosman; Zhiqi Huang; Ye Chen; Chongyi Ling; Lin Wu; Yuriy A. Akimov; Robert Laskowski; Bo Chen; Peter Ercius; Jian Zhang; Xiaoying Qi; Min Hao Goh; Yiyao Ge; Zhicheng Zhang
Nature Communications, 2020
9. Single-walled Carbon Nanohorn As New Solid-Phase Extraction Adsorbent for Determination of 4-Nitrophenol in Water Sample.
Shuyun Zhu; Wenxin Niu; Haijuan Li; Shuang Han; Guobao Xu
TALANTA, 2009
10. Unveiling One-Pot Template-Free Fabrication of Exquisite Multidimensional PtNi Multicube Nanoarchitectonics for the Efficient Electrochemical Oxidation of Ethanol and Methanol with a Great Tolerance for CO
Fengxia Wu; Kamel Eid; Aboubakr M. Abdullah; Wenxin Niu; Chao Wang; Yixiang Lan; Ahmed A. Elzatahry; Guobao Xu
ACS Applied Materials & Interfaces, 2020
牛文新
吉林省
研究领域：
储能,新材料,新能源,石油炼制,石油化工,精细化工
研究方向：
分析化学
所在单位：
中国科学院长春应用化学研究所
