“The 𝐦𝐨𝐬𝐭 𝐩𝐫𝐨𝐦𝐢𝐬𝐢𝐧𝐠 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐟𝐨𝐫 𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐧𝐠 𝐡𝐲𝐝𝐫𝐨𝐠𝐞𝐧 from renewable energy sources is 𝐩𝐡𝐨𝐭𝐨𝐞𝐥𝐞𝐜𝐭𝐫𝐨𝐜𝐡𝐞𝐦𝐢𝐜𝐚𝐥 𝐰𝐚𝐭𝐞𝐫 𝐬𝐩𝐥𝐢𝐭𝐭𝐢𝐧𝐠 𝐮𝐭𝐢𝐥𝐢𝐳𝐢𝐧𝐠 𝐬𝐨𝐥𝐚𝐫 𝐥𝐢𝐠𝐡𝐭. The most difficult aspect of this technique is developing effective anodic electrodes capable of overcoming the enormous over-potential needed to complete the four-electron water oxidation reaction, which is liable for the slow kinetics of such a photoelectrochemical system”

https://link.springer.com/article/10.1007/s10311-021-01357-x?utm_source=getftr&utm_medium=getftr&utm_campaign=getftr_pilot

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