Scientists find new way to produce hydrogen fuel from sunlight
Bengaluru, April 28: The energy provided by sunlight in an hour is equivalent to mankind's total energy consumption for one year, but the development of devices to turn this abundant natural gift into a feasible energy source for mankind had remained a challenge.
A new research, led by Govinder Singh Pawar -- an Indian origin scientist at the University of Exeter in the UK -- has given a ray of hope for the solar fuel.
According to the report, published in the journal Scientific Reports, the team of researchers developed an innovative method to split water into its constituent parts - Hydrogen and Oxygen - using sunlight.
The hydrogen can then be used as a fuel, with the potential to power everyday items such as homes and vehicles.
Hydrogen is considered to be a promising alternative fuel source that is clean -- its only by-product is water -- and is capable of replacing fossil fuels.
"The Hydrogen fuel that can be created through this synthetic photosynthesis method would not only severely reduce carbon emissions, but would also create a virtually limitless energy source," the university said in a statement.
"Photo electro-chemical" water splitting, emulating the natural photosynthesis using man-made materials, has long been considered as the Holy Grail to a carbon-free hydrogen economy.
However, efforts to produce efficient stable semiconductor material, in order to effectively convert sunlight to a storable widespread energy source, had so far proved elusive.
The ground-breaking new research by Pawar and co-workers at University's Environment and Sustainability Institute centres on the use of a revolutionary photo-electrode - made from nanoparticles of the elements lanthanum(La), iron(Fe) and oxygen(O).
Here, the team utilised Lanthanum iron oxide (LaFeO3) to create a semiconducting material that gave the ideal results for the production of Hydrogen from water using sunlight, making it the strongest candidate yet for renewable Hydrogen generation.
The researchers believe their novel photo-electrode made using "scalable spray pyrolysis method" is not only cheap to produce, but can also be recreated on a larger scale for mass and worldwide use.
"To the best of our knowledge, we report for the first time the nanostructured LaFeO3 photoelectrode for spontaneous Hydrogen evolution from water without any external applied bias," the researchers said.
"Moreover, our material has excellent stability where, after 21 hours of testing, it does not degrade, ideal for water splitting purpose."
The university in its statement said that Pawar and his colleagues "are currently working on further improving our material to make it more efficient to produce Hydrogen".
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US SC rejects 26/11 attack accused Tahawwur Rana’s plea seeking stay on his extradition to India
New York, Apr 7 (PTI): The US Supreme Court has rejected 26/11 Mumbai terror attack accused Tahawwur Rana's appeal seeking a stay on his extradition to India, moving him closer to being handed over to Indian authorities to face justice.
Rana, 64, a Canadian national of Pakistani origin, is currently lodged at a metropolitan detention centre in Los Angeles.
He is known to be associated with Pakistani-American terrorist David Coleman Headley, one of the main conspirators of the 26/11 attacks. Headley conducted a recce of Mumbai before the attacks by posing as an employee of Rana’s immigration consultancy.
Rana had submitted an ‘Emergency Application For Stay Pending Litigation of Petition For Writ of Habeas Corpus' on February 27, 2025, with Associate Justice of the Supreme Court of the United States and Circuit Justice for the Ninth Circuit Elena Kagan.
Kagan had denied the application earlier last month.
Rana had then renewed his ‘Emergency Application for Stay Pending Litigation of Petition for Writ of Habeas Corpus previously addressed to Justice Kagan’, and requested that the renewed application be directed to US Chief Justice John Roberts.
An order on the Supreme Court website noted that Rana's renewed application had been “distributed for Conference” on April 4 and the “application” has been “referred to the Court.”
A notice on the Supreme Court website Monday said that “Application denied by the Court.”
Rana was convicted in the US of one count of conspiracy to provide material support to the terrorist plot in Denmark and one count of providing material support to Pakistan-based terrorist organisation Lashker-e-Taiba which was responsible for the attacks in Mumbai.
New York-based Indian-American attorney Ravi Batra had told PTI that Rana had made his application to the Supreme Court to prevent extradition, which Justice Kagan denied on March 6. The application was then submitted before Roberts, “who has shared it with the Court to conference so as to harness the entire Court’s view.”
The Supreme Court justices are Associate Justice Clarence Thomas, Associate Justice Samuel A. Alito, Jr., Associate Justice Sonia Sotomayor, Associate Justice Elena Kagan, Associate Justice Neil M. Gorsuch, Associate Justice Brett M. Kavanaugh, Associate Justice Amy Coney Barrett, and Associate Justice Ketanji Brown Jackson.
In his emergency application, Rana had sought a stay of his extradition and surrender to India pending litigation (including exhaustion of all appeals) on the merits of his February 13.
In that petition, Rana argued that his extradition to India violates US law and the UN Convention Against Torture "because there are substantial grounds for believing that, if extradited to India, the petitioner will be in danger of being subjected to torture."
"The likelihood of torture in this case is even higher though as petitioner faces acute risk as a Muslim of Pakistani origin charged in the Mumbai attacks,” the application said.
The application also said that his “severe medical conditions” render extradition to Indian detention facilities a “de facto" death sentence in this case.
The US Supreme Court denied Rana's petition for a writ of certiorari relating to his original habeas petition on January 21. The application notes that on that same day, newly-confirmed Secretary of State Marco Rubio had met with External Affairs Minister S Jaishankar.
When Prime Minister Narendra Modi arrived in Washington on February 12 to meet with Trump, Rana’s counsel received a letter from the Department of State, stating that “on February 11, 2025, the Secretary of State decided to authorise” Rana’s "surrender to India,” pursuant to the “Extradition Treaty between the United States and India”.
Rana’s Counsel requested from the State Department the complete administrative record on which Secretary Rubio based his decision to authorize Rana’s surrender to India.
The Counsel also requested immediate information of any commitment the United States has obtained from India with respect to Rana’s treatment. “The government declined to provide any information in response to these requests,” the application said.
It added that given Rana’s underlying health conditions and the State Department’s findings regarding the treatment of prisoners, it is very likely “Rana will not survive long enough to be tried in India".
During a joint press conference with Prime Minister Modi in the White House in February, President Donald Trump announced that his administration has approved the extradition of "very evil" Rana, wanted by Indian law enforcement agencies for his role in the 26/11 Mumbai terror attacks, "to face justice in India”.
A total of 166 people, including six Americans, were killed in the 2008 Mumbai terror attacks in which 10 Pakistani terrorists laid a more than 60-hour siege, attacking and killing people at iconic and vital locations in Mumbai.
