Home

Citation: liu Junli, Hu Jiru, Lin Qiuzhu, Gao Zhidi*. STUDY ON THE OSCILLATION OF GA-KBrO₃-H₂SO₄ SYSTEM[J]. Acta Physico-Chimica Sinica, ;1989, 5(03): 334-339. doi: 10.3866/PKU.WHXB19890316 shu

STUDY ON THE OSCILLATION OF GA-KBrO₃-H₂SO₄ SYSTEM

1.
Department of Chemistry; Peking University

Received Date: 21 August 1987
Available Online: 15 June 1989

The relations between preoscillatory period τ as well as oscillating period T_2 and each reactant initial concentration have been studied. The formula at 302K are:
τ=22.8 c~(-2.23)_(H_2SO_4) c~(-2.17)_(KBrO_3) c~(0.795)_(GA) (mol.dm~(-3))~(4.25)·s
T_2=0.84 c~(-2.28)_(H_2SO-4)c~(-1.97)_(KBrO_3) exp{(0.000147(mol.dm~(-3))~2/c~2_(GA)}(mol.dm~(-3))~(4.25)·s
The major conclusions are:
(1): τ and T_2 decrease while increasing concentrations of KBrO_3 and H_2SO_4, which is similiar to classical BZ systems(1).
(2):τ and T_2 increase with increasing the concentration of GA (Gallic Acid), which is contrary to the classical BZ systems. This implies that organic subtrate GA plays special rule in the oscillation of GA-KBrO_3-H_2SO_4 system.
With the method of CV(Cyclic Voltammgrams) the effects of GA in this system have been studied. It has been found that when preoscillatory period ends GA is almost exhausted. In other word, It is impossible to hold oscillation of this system with GA subtrate. In fact, GA subtrate only supplies the substances that hold oscillation of this system. Therefore, The explanation of OKN mechanism~([4]) to this system is not available.
It has been studied that the effects of Fe(Phen)~(2+)_3 on the oscillation of GA-KBrO_3-H_2SO_4 system. It has been found that the oscillating behavior of Br~- ion will change with the concentration of Fe(Phen)~(2+)_3, ie, at low concentration of Fe(Phen)~(2+)_3 the behavior of Br~- ion is similiar to that of GA-KBrO-H_2SO_4 system, at high concentration of Fe(Phen)~(2+)_3 the behavior of Br~- ion is contrary to that GA-KBrO_3-H_2SO_4 system. The significant differenc es are that before the oscillating pulse of Br~- ion during each oscillating period the former is gradual increase of Br~- ion concentration and the latter is gradual decrease of Br~- ion concentration. The kind of phenomenon in chemical oscillations is first discovered. This implies that the oscillation of GA-KBrO_3-H_2SO_4-Fe(phen)~(2+)_3 system cannot be explained with OKN mechanism. The oscillation is phenomenally couple of two different oscillations.
1. [1]
  Xiaodong Zhang , Bohui Xu , Deshuai Xiao , Xinyuan Zhang , Pifu Gong , Zheshuai Lin . From centrosymmetric CN3H6C6H5SO3 to non-centrosymmetric CN3H6C6H4SO3(OH): Hydroxyl introduced hydrogen bond reconstruction to realize strong second harmonic generation. Chinese Journal of Structural Chemistry, 2025, 44(10): 100707-100707. doi: 10.1016/j.cjsc.2025.100707
2. [2]
  Xinpeng LIU , Liuyang ZHAO , Hongyi LI , Yatu CHEN , Aimin WU , Aikui LI , Hao HUANG . Ga₂O₃ coated modification and electrochemical performance of Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ cathode material. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1105-1113. doi: 10.11862/CJIC.20230488
3. [3]
  Haiyuan Wang , Shanshan Cheng , Hui Yang . Development and Exploration of the Ideological and Political Education Framework in Applied Chemistry Postgraduate Curriculum. University Chemistry, 2024, 39(6): 72-82. doi: 10.3866/PKU.DXHX202311020
4. [4]
  Yan Yuan , Haitao Wu , Yi Zhang , Li Jiang , Feng Cao , Yanmao Dong . Research on the Talent Training System to Enhance the Core Competence of Employment for Undergraduate Students Majoring in Materials Chemistry. University Chemistry, 2024, 39(11): 52-56. doi: 10.12461/PKU.DXHX202402015
5. [5]
  Ziyi Xiao , Xinyi Ma , Linping Wang , Haobin Hu , Enzhou Liu . Efficient photocatalytic conversion H₂S over NiS₂/twinned-Mn_0.5Cd_0.5S Schottky/S-scheme homojunction in Na₂S/Na₂SO₃ solution. Acta Physico-Chimica Sinica, 2026, 42(4): 100171-0. doi: 10.1016/j.actphy.2025.100171
6. [6]
  Wei Zhong , Dan Zheng , Yuanxin Ou , Aiyun Meng , Yaorong Su . Simultaneously Improving Inter-Plane Crystallization and Incorporating K Atoms in g-C₃N₄ Photocatalyst for Highly-Efficient H₂O₂ Photosynthesis. Acta Physico-Chimica Sinica, 2024, 40(11): 2406005-0. doi: 10.3866/PKU.WHXB202406005
7. [7]
  Peng-Fei Li , Chun-Li Hu , Bo Zhang , Jiang-Gao Mao , Fang Kong . From HgGa₂(SeO₃)₄ to Hg₂Ga(SeO₃)₂F: The first Hg^Ⅰ-based selenite birefringent crystal triggered by linear groups and fluoride ions. Chinese Chemical Letters, 2026, 37(2): 110588-. doi: 10.1016/j.cclet.2024.110588
8. [8]
  Qiaowei Li , Huadong Wang , Junli Hou . Exploration and Reflection on Graduate Curriculum Development under the New Paradigm of Chemistry Advancement. University Chemistry, 2024, 39(6): 50-54. doi: 10.3866/PKU.DXHX202401044
9. [9]
  Cuiwu MO , Gangmin ZHANG , Chao WU , Zhipeng HUANG , Chi ZHANG . A(NH₂SO₃) (A=Li, Na): Two ultraviolet transparent sulfamates exhibiting second harmonic generation response. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1387-1396. doi: 10.11862/CJIC.20240045
10. [10]
  Yi Yang , Xin Zhou , Miaoli Gu , Bei Cheng , Zhen Wu , Jianjun Zhang . Femtosecond transient absorption spectroscopy investigation on ultrafast electron transfer in S-scheme ZnO/CdIn₂S₄ photocatalyst for H₂O₂ production and benzylamine oxidation. Acta Physico-Chimica Sinica, 2025, 41(6): 100064-0. doi: 10.1016/j.actphy.2025.100064
11. [11]
  Jiayao Wang , Guixu Pan , Ning Wang , Shihan Wang , Yaolin Zhu , Yunfeng Li . Preparation of donor-π-acceptor type graphitic carbon nitride photocatalytic systems via molecular level regulation for high-efficient H₂O₂ production. Acta Physico-Chimica Sinica, 2025, 41(12): 100168-0. doi: 10.1016/j.actphy.2025.100168
12. [12]
  Haojie Duan , Hejingying Niu , Lina Gan , Xiaodi Duan , Shuo Shi , Li Li . Reinterpret the heterogeneous reaction of α-Fe₂O₃ and NO₂ with 2D-COS: The role of SDS, UV and SO₂. Chinese Chemical Letters, 2024, 35(6): 109038-. doi: 10.1016/j.cclet.2023.109038
13. [13]
  Yanfen PENG , Xinyue WANG , Tianbao LIU , Xiaoshuo WU , Yujing WEI . Syntheses and luminescence of four Cd(Ⅱ)/Zn(Ⅱ) complexes constructed by 1,3‐bis(4H‐1,2,4‐triazole)benzene. Chinese Journal of Inorganic Chemistry, 2025, 41(7): 1416-1426. doi: 10.11862/CJIC.20250018
14. [14]
  Honglin Gao , Chunlin Yuan , Hongyu Chen , Aiyi Dong , Pan Gao , Guangjin Hou . Surface gallium hydride on Ga2O3 polymorphs: A comparative solid-state NMR study. Chinese Journal of Structural Chemistry, 2025, 44(4): 100561-100561. doi: 10.1016/j.cjsc.2025.100561
15. [15]
  Shuang Zhao , Fei Jia , Kaibei Zhan , Rui-Xi Wang , Pengfei Tan , Lin Shen , Li-Ming Wu , Ling Chen . Amino substitution strategy achieves significant blue shift while preserving high optical anisotropy: A₂(H₃C₃N₄S₂)₂•H₂O (A =NH₄, K, Rb, Cs). Chinese Chemical Letters, 2026, 37(3): 110625-. doi: 10.1016/j.cclet.2024.110625
16. [16]
  Shuangxi Li , Huijun Yu , Tianwei Lan , Liyi Shi , Danhong Cheng , Lupeng Han , Dengsong Zhang . NO_x reduction against alkali poisoning over Ce(SO₄)₂-V₂O₅/TiO₂ catalysts by constructing the Ce⁴⁺–SO₄²⁻ pair sites. Chinese Chemical Letters, 2024, 35(5): 108240-. doi: 10.1016/j.cclet.2023.108240
17. [17]
  Yuan Chun , Lijun Yang , Jinyue Yang , Wei Gao . Ideological and Political Design of BZ Oscillatory Reaction Experiment. University Chemistry, 2024, 39(2): 72-76. doi: 10.3866/PKU.DXHX202308072
18. [18]
  Yang Xia , Kangyan Zhang , Heng Yang , Lijuan Shi , Qun Yi . Improving Photocatalytic H₂O₂ Production over iCOF/Bi₂O₃ S-Scheme Heterojunction in Pure Water via Dual Channel Pathways. Acta Physico-Chimica Sinica, 2024, 40(11): 2407012-0. doi: 10.3866/PKU.WHXB202407012
19. [19]
  Qi Wu , Changhua Wang , Yingying Li , Xintong Zhang . Enhanced photocatalytic synthesis of H₂O₂ by triplet electron transfer at g-C₃N₄@BN van der Waals heterojunction interface. Acta Physico-Chimica Sinica, 2025, 41(9): 100107-0. doi: 10.1016/j.actphy.2025.100107
20. [20]
  Hualin Jiang , Wenxi Ye , Huitao Zhen , Xubiao Luo , Vyacheslav Fominski , Long Ye , Pinghua Chen . Novel 3D-on-2D g-C₃N₄/AgI._x._y heterojunction photocatalyst for simultaneous and stoichiometric production of H₂ and H₂O₂ from water splitting under visible light. Chinese Chemical Letters, 2025, 36(2): 109984-. doi: 10.1016/j.cclet.2024.109984

Get Citation

PDF

XML

Metrics

PDF Downloads(2053)
Abstract views(2702)
HTML views(77)

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

STUDY ON THE OSCILLATION OF GA-KBrO3-H2SO4 SYSTEM

Metrics

通讯作者: 陈斌, bchen63@163.com

STUDY ON THE OSCILLATION OF GA-KBrO₃-H₂SO₄ SYSTEM