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Citation: Qu Shuhua, Wu Yue, Wang Enbo, You Wanshen. ON THE CATALYTIC BEHAVIOUR OF 2:18-HETEROPOLYMOLYBDOPHOSPHORIC ACID(SALTS)IN THE DECOMPOSITION OF H₂O₂[J]. Chinese Journal of Applied Chemistry, ;1988, 5(3): 48-53. shu

ON THE CATALYTIC BEHAVIOUR OF 2:18-HETEROPOLYMOLYBDOPHOSPHORIC ACID(SALTS)IN THE DECOMPOSITION OF H₂O₂

Qu Shuhua ¹ ,
Wu Yue ¹ ,
Wang Enbo ² ,
You Wanshen ²

1.
1. Changchun Institute of Applied Chemistry, Academia Sinica;
2.
2. Department of Chemistry, Northeast Normal University Changchun

Received Date: 19 February 1987
Available Online: 19 November 1987

The catalytic behaviour of 2:18 heteropolymolybdophosphoric acid and its salts(Dawson structure) in the decomposition of H₂O₂ has been studied in comparison with that of 1:12 heteropolymolybdophosphoric acid and its salts (Kcggin structure). The results show that H₆(P₂Mo₁₈O₆₂), so as H₃(PMo₁₂O₄₀) does not posses catalytic activity for H₂O₂ decomPosition, whereas their Fe³⁺, Cu²⁺ salts are more active and their kinetic behaviour toward H₂O₂ decomposition is different from that of 1:12 heteropolymolybdophosphate in that it obeys the second order equation. It is related to the environmental difference of the countercation in these two structures. The catalytic behaviour remains unchanged, when part of molybdenum ions in 2:18 heteropolymolybdophosphorie acid is substituted by vanadium ions. It indicates that the substtituted vanadium ions are not only the active species, but have the same environment in these two structures.
- Heteropolyacid,
- Molybdate,
- Phosphate,
- Catalytic activity,
- Hydrogen peroxide,
- Decomposition
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ON THE CATALYTIC BEHAVIOUR OF 2:18-HETEROPOLYMOLYBDOPHOSPHORIC ACID(SALTS)IN THE DECOMPOSITION OF H2O2

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ON THE CATALYTIC BEHAVIOUR OF 2:18-HETEROPOLYMOLYBDOPHOSPHORIC ACID(SALTS)IN THE DECOMPOSITION OF H₂O₂