Citation: Chong Zheng FAN, Chang Sui WANG, Sheng Jun WANG, You Shi WU, D. L. TRIMM, M. S. WAINWRIGHT. SINERING BEHAVIOUR OF RANEY-COPPER CATALYST IN VARIOUS ATMOSPHERES[J]. Chinese Chemical Letters, ;1990, 1(3): 279-282. shu

SINERING BEHAVIOUR OF RANEY-COPPER CATALYST IN VARIOUS ATMOSPHERES

a The University of Science and Technology of China Hefei Anhui P R China;
b Institute of Machine & Electricity of An Hui Province Wu Hu;
c The University of New South Wales Australia

Received Date: 4 April 1990

Raney-Copper (R-Cu) catalyst was prepared and its sintering behaviour in atmospheres at teperature 300℃-600℃ was detected by methods of SSA, PSD, XRD and SEM.It was found that sintering of R-Cu started from much lower temperature than the melting point of copper.Changes both on the surface and in the body phase were discovered.There is a rule in the extent of sintering for R-Cu in different atmospheres which is related to the adsorption of the particular gases molecules on the surface of the catalyst.Dynamical equations of the surface decrease is established and the mechanism of sintering is discussed.Calculations of quantum mechanics givethe similar results.
1. [1]
  Gu Gong , Mengzhu Li , Ning Sun , Ting Zhi , Yuhao He , Junan Pan , Yuntao Cai , Longlu Wang . Versatile oxidized variants derived from TMDs by various oxidation strategies and their applications. Chinese Chemical Letters, 2024, 35(6): 108705-. doi: 10.1016/j.cclet.2023.108705
2. [2]
  Zikang Hu , Hengjie Zhang , Zhengqiu Li , Tianbao Zhao , Zhipeng Gu , Qijuan Yuan , Baoshu Chen . Multifunctional photothermal hydrogels: Design principles, various functions, and promising biological applications. Chinese Chemical Letters, 2024, 35(10): 109527-. doi: 10.1016/j.cclet.2024.109527
3. [3]
  Zhongxiong Sun , Haili Song , Mei-Huan Zhao , Yijie Zeng , Man-Rong Li . Structural determination and exotic resistive behaviour of α-RuI3 under high-pressure. Chinese Journal of Structural Chemistry, 2025, 44(2): 100429-100429. doi: 10.1016/j.cjsc.2024.100429
4. [4]
  Yijia Jiao , Yuzhu Li , Yuting Zhou , Peipei Cen , Yi Ding , Yan Guo , Xiangyu Liu . Structural evolution and zero-field SMM behaviour in ferromagnetically-coupled disk-type Co₇ clusters bearing exclusively end-on azido bridges. Chinese Chemical Letters, 2024, 35(8): 109082-. doi: 10.1016/j.cclet.2023.109082
5. [5]
  Shaonan Tian , Yu Zhang , Qing Zeng , Junyu Zhong , Hui Liu , Lin Xu , Jun Yang . Core-shell gold-copper nanoparticles: Evolution of copper shells on gold cores at different gold/copper precursor ratios. Chinese Journal of Structural Chemistry, 2023, 42(11): 100160-100160. doi: 10.1016/j.cjsc.2023.100160
6. [6]
  Hong Yin , Zhipeng Yu . Hexavalent iridium catalyst enhances efficiency of hydrogen production. Chinese Journal of Structural Chemistry, 2025, 44(1): 100382-100382. doi: 10.1016/j.cjsc.2024.100382
7. [7]
  Guoliang Liu , Zhiqiang Liu , Anmin Zheng . Modulation of zeolite surface realizes dynamic copper species redispersion. Chinese Journal of Structural Chemistry, 2024, 43(6): 100308-100308. doi: 10.1016/j.cjsc.2024.100308
8. [8]
  Luyao Lu , Chen Zhu , Fei Li , Pu Wang , Xi Kang , Yong Pei , Manzhou Zhu . Ligand effects on geometric structures and catalytic activities of atomically precise copper nanoclusters. Chinese Journal of Structural Chemistry, 2024, 43(10): 100411-100411. doi: 10.1016/j.cjsc.2024.100411
9. [9]
  Rui TIAN , Duo LI , Yuan REN , Jiamin CHAI , Xuehua SUN , Haoyu LI , Yuecheng ZHANG . Dual-ligand-modified copper nanoclusters: Synthesis and application in ornidazole detection. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1245-1255. doi: 10.11862/CJIC.20240389
10. [10]
  Lei Zhang , Chenyang Kou , Kun Ni , Yiwen Chen , Tongchuan Zhang , Baoliang Zhang . Microenvironment regulation of copper sites by chelating hydrophobic polymer for electrosynthesis of ethylene. Chinese Chemical Letters, 2025, 36(6): 110836-. doi: 10.1016/j.cclet.2025.110836
11. [11]
  Qijun Tang , Wenguang Tu , Yong Zhou , Zhigang Zou . High efficiency and selectivity catalyst for photocatalytic oxidative coupling of methane. Chinese Journal of Structural Chemistry, 2023, 42(12): 100170-100170. doi: 10.1016/j.cjsc.2023.100170
12. [12]
  Zimo Peng , Quan Zhang , Gaocan Qi , Hao Zhang , Qian Liu , Guangzhi Hu , Jun Luo , Xijun Liu . Nanostructured Pt@RuOx catalyst for boosting overall acidic seawater splitting. Chinese Journal of Structural Chemistry, 2024, 43(1): 100191-100191. doi: 10.1016/j.cjsc.2023.100191
13. [13]
  Yizhe Chen , Yuzhou Jiao , Liangyu Sun , Cheng Yuan , Qian Shen , Peng Li , Shiming Zhang , Jiujun Zhang . Nonmetallic phosphorus alloying to regulate the oxygen reduction mechanisms of platinum catalyst. Chinese Chemical Letters, 2025, 36(4): 110789-. doi: 10.1016/j.cclet.2024.110789
14. [14]
  Hanqing Zhang , Xiaoxia Wang , Chen Chen , Xianfeng Yang , Chungli Dong , Yucheng Huang , Xiaoliang Zhao , Dongjiang Yang . Selective CO2-to-formic acid electrochemical conversion by modulating electronic environment of copper phthalocyanine with defective graphene. Chinese Journal of Structural Chemistry, 2023, 42(10): 100089-100089. doi: 10.1016/j.cjsc.2023.100089
15. [15]
  Ting Hu , Yuxuan Guo , Yixuan Meng , Ze Zhang , Ji Yu , Jianxin Cai , Zhenyu Yang . Uniform lithium deposition induced by copper phthalocyanine additive for durable lithium anode in lithium-sulfur batteries. Chinese Chemical Letters, 2024, 35(5): 108603-. doi: 10.1016/j.cclet.2023.108603
16. [16]
  Ruilong Geng , Lingzi Peng , Chang Guo . Dynamic kinetic stereodivergent transformations of propargylic ammonium salts via dual nickel and copper catalysis. Chinese Chemical Letters, 2024, 35(8): 109433-. doi: 10.1016/j.cclet.2023.109433
17. [17]
  Jing-Qi Tao , Shuai Liu , Tian-Yu Zhang , Hong Xin , Xu Yang , Xin-Hua Duan , Li-Na Guo . Photoinduced copper-catalyzed alkoxyl radical-triggered ring-expansion/aminocarbonylation cascade. Chinese Chemical Letters, 2024, 35(6): 109263-. doi: 10.1016/j.cclet.2023.109263
18. [18]
  Pingping Wang , Huixian Miao , Kechuan Sheng , Bin Wang , Fan Feng , Xuankun Cai , Wei Huang , Dayu Wu . Efficient blue-light-excitable copper(Ⅰ) coordination network phosphors for high-performance white LEDs. Chinese Chemical Letters, 2024, 35(4): 108600-. doi: 10.1016/j.cclet.2023.108600
19. [19]
  Ling Fang , Sha Wang , Shun Lu , Fengjun Yin , Yujie Dai , Lin Chang , Hong Liu . Efficient electroreduction of nitrate via enriched active phases on copper-cobalt oxides. Chinese Chemical Letters, 2024, 35(4): 108864-. doi: 10.1016/j.cclet.2023.108864
20. [20]
  Yu-Yu Tan , Lin-Heng He , Wei-Min He . Copper-mediated assembly of SO₂F group via radical fluorine-atom transfer strategy. Chinese Chemical Letters, 2024, 35(9): 109986-. doi: 10.1016/j.cclet.2024.109986

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(768)
HTML views(0)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return