Hard-Working Microbes Make Hydrogen At Record Rate

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters.


biohydrogen_f.jpg

Bacteria break up fermented plant waste in a microbial electrolysis cell, forming hydrogen

Researchers at Penn State University have coaxed common bacteria to produce hydrogen in a new, efficient way. Using starter material that could theoretically be sourced from a salad bar, the team has charmed bacteria from wastewater into generating abundant, clean hydrogen from cellulose or vinegar with a little zap of electricity. In a table-top reactor, no less.

Other systems produce hydrogen on a larger scale, reports the National Science Foundation, but few if any match the new system for energy efficiency. Even with the small jolt of electricity, the hydrogen provides more energy as fuel than the electricity needed to drive the reactor. The overall efficiency of the vinegar-fueled system is better than 80 percent, far better than the efficiency generating the leading alternative, ethanol. By perfecting the environment for the bacteria to do what they already do in nature, the new approach can be three to ten times more efficient than standard electrolysis.

Good news. And further proof that bacteria are our friends.

Julia Whitty is Mother Jones’ environmental correspondent. You can read from her new book, The Fragile Edge, and other writings, here.

MOTHER JONES NEEDS YOUR HELP

We have about a $170,000 funding gap and less than a week to go in our hugely important First $500,000 fundraising campaign that ends Saturday. We urgently need your help, and a lot of help, so we can pay for the one-of-a-kind journalism you get from us.

Learn more in “Less Dreading, More Doing,” where we lay out this wild moment and how we can keep charging hard for you. And please help if you can: $5, $50, or $500—every gift from every person truly matters right now.

payment methods

MOTHER JONES NEEDS YOUR HELP

We have about a $170,000 funding gap and less than a week to go in our hugely important First $500,000 fundraising campaign that ends Saturday. We urgently need your help, and a lot of help, so we can pay for the one-of-a-kind journalism you get from us.

Learn more in “Less Dreading, More Doing,” where we lay out this wild moment and how we can keep charging hard for you. And please help if you can: $5, $50, or $500—every gift from every person truly matters right now.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate