{"id":4004,"date":"2024-03-19T07:18:02","date_gmt":"2024-03-19T07:18:02","guid":{"rendered":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/03\/19\/find-pearls-in-the-soil-unveiling-the-magic-of-hydrogen-production-from-municipal-sewage\/"},"modified":"2024-03-19T07:18:02","modified_gmt":"2024-03-19T07:18:02","slug":"find-pearls-in-the-soil-unveiling-the-magic-of-hydrogen-production-from-municipal-sewage","status":"publish","type":"post","link":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/03\/19\/find-pearls-in-the-soil-unveiling-the-magic-of-hydrogen-production-from-municipal-sewage\/","title":{"rendered":"‘Find pearls in the soil’ unveiling the magic of hydrogen production from municipal sewage"},"content":{"rendered":"
\"‘Find<\/div>


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Professor Kangwoo Cho and PhD candidate Jiseon Kim from the Division of Environmental Science & Engineering at Pohang University of Science and Technology (POSTECH) collaborated with the Korea Institute of Science and Technology (KIST) to devise a novel catalyst aimed at enhancing the efficiency of reactions using contaminated municipal sewage to produce hydrogen — a green energy source. Their research recently featured in the international journal Advanced Functional Materials<\/em>.<\/p>\n

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With the growing environmental concerns of pollution associated with fossil fuel, hydrogen has garnered increased interest. Water electrolysis technology is a sustainable process that leverages Earth’s abundant water to produce hydrogen. However, the concurrent oxygen evolution reaction during hydrogen production is notably slow, resulting in a considerably low energy conversion efficiency.<\/p>\n

Lately, the academic community has been tackling this issue by integrating the urea oxidation reaction with the hydrogen generation reaction. Urea, a pollutant found in urine, releases a significant amount of energy during its oxidation process, offering a potential means to enhance both the efficiency of hydrogen generation and the purification of toilet wastewater. Ultimately, it is necessary to find a catalyst that can effectively drive the urea oxidation reaction, thereby amplifying the efficiency of both hydrogen generation and wastewater treatment.<\/p>\n

In pursuit of increased efficiency in the urea oxidation reaction, the team created a catalyst known as nickel-iron-oxalate (O-NFF). This catalyst combines iron (Fe) and oxalate on nickel (Ni) metal, resulting in an expansive surface area characterized by nanometer-sized particles in fragment form. This unique property enables the catalyst to adsorb more reactants, facilitating an accelerated urea oxidation reaction.<\/p>\n

In experiments, the O-NFF catalyst devised by the team successfully lowered the voltage required for hydrogen generation to 1.47 V RHE (at 0.5 A\/cm2<\/sup>) and exhibited a high reaction rate even when tested in a mixed solution of potassium hydroxide (1 M) and urea (0.33 M) with a Tafel slope of 12.1 mV\/dec. The researchers further validated the catalyst’s efficacy by confirming its promotion of the urea oxidation reaction through photoelectron\/X-ray absorption spectroscopy using a radiation photo accelerator.<\/p>\n

Professor Kangwoo Cho who led the research stated, “We have developed a catalyst capable of purifying municipal sewage while simultaneously enhancing the efficiency of hydrogen production, a green energy source.” He added, “We anticipate that O-NFF catalysts, synthesized from metals and organics, will contribute to the improved efficiency of industrial electrolysis hydrogen production.”<\/p>\n

The research was sponsored by the Mid-Career Researcher Program and the Hydrogen Source Technology Development Program of the National Research Foundation of Korea, and the National Supercomputing Center.<\/p>\n<\/div>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Professor Kangwoo Cho and PhD candidate Jiseon Kim from the Division of Environmental Science & Engineering at Pohang University of Science and Technology (POSTECH) collaborated with the Korea Institute of Science and Technology (KIST) to devise a novel catalyst aimed at enhancing the efficiency of reactions using contaminated municipal sewage to produce hydrogen — a […]<\/p>\n","protected":false},"author":2,"featured_media":4005,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","fifu_image_url":"https:\/\/www.sciencedaily.com\/images\/scidaily-icon.png","fifu_image_alt":"","footnotes":""},"categories":[606],"tags":[6968,3402,6971,6970,6972,3240,6267,6973,2324,6969],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/4004"}],"collection":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/comments?post=4004"}],"version-history":[{"count":1,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/4004\/revisions"}],"predecessor-version":[{"id":4006,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/4004\/revisions\/4006"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media\/4005"}],"wp:attachment":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media?parent=4004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/categories?post=4004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/tags?post=4004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}