A substance exhibiting unusual chemical activity, which enables it to set in motion, or induce, a chemical reaction such as polymerization, oxidation, or detonation.
具有异常化学活性的物质，能起动或引发化学反应，如聚合、氧化或爆震。
In comparison with PAN, PAN-PPO showed a high electrocatalytic activity for oxidation of methanol and the electro-oxidation reaction was controlled by the diffusion step.
在甲醇酸性体系中，PAN-PPO对甲醇具有较好的电催化活性，此反应受扩散控制。
In comparison with PAN, PAN-PPO showed a high electrocatalytic activity for oxidation of methanol and the electro-oxidation reaction was controlled by the diffusion step.
在甲醇酸性体系中，PAN-PPO对甲醇具有较好的电催化活性，此反应受扩散控制。
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