Gadgets

New approach for producing hydrogen gas developed

Published

8 years ago

January 11, 2018

New approach for producing hydrogen gas developed

~By Ratneshwar Thakur

Hydrogen is considered one of the best sources of green energy, but economic production and storage remain major challenges in propagating this green fuel. Scientists believe that developing specific catalysts could help produce hydrogen from cheap starting materials.

A research team led by Dr E Balaraman at National Chemical Laboratory (NCL), Pune has developed a new strategy to replace expensive noble metal catalysts with an iron catalyst for production of hydrogen gas. The process, they claim, is economical and sustainable. The study was published in journal Nature Communications.

Researchers used abundantly available alcohols such as N-heterocycles and amines as starting reaction materials, along with the iron catalyst synthesized in laboratory. Argon gas was then passed through the reaction tube to create inert reaction conditions in place of air. This reaction mixture was refluxed to get maximum conversion of starting material, resulting in generation of hydrogen.

Hydrogen gas generated from various organic transformations indicated successful performance of the new catalyst. “After completion of the reaction, the catalyst can be recovered to reuse for further reactions, simply by using a magnet,” Garima Jaiswal, a member of the research team, told India Science Wire.

Inspired by naturally occurring hydrogen processing in anaerobic bacteria, protozoa, fungi, and algae, chemists have been trying to design new catalysts. However, designing new catalytic systems based on abundant and inexpensive starting material is challenging.

It is known that removal of hydrogen atoms from an organic molecule can be achieved either by the use of strong oxidants or sacriﬁcial hydrogen acceptors, which often produce plentiful waste. In the new study, the catalytic material was obtained by thermally pyrolyzing iron complex using a unique core–shell architecture composed of oxide as a shell and carbide as a core of iron.

“The economics of hydrogen energy depends on the cost of starting material and the entire process. When we observed that alcohols could give rise to hydrogen by a simple reaction, we were excited. This reaction could be important because there are several types of alcohols which are available in abundance and can be obtained from indigestible biomass such as lignocellulose and some are presently considered as waste in chemical industrial sectors. By further fine-tuning the catalyst, if we can achieve production of hydrogen gas from such alcohols, we have the potential to convert waste into fuel,” said Dr Balaraman.

Researchers point out that energy storage and use of abundantly available feedstock as a carbon source are the two main issues of challenge in developing economical green fuels. “The use of hydrogen will diversify energy sources and will reduce pollution and greenhouse gas emissions during energy conversion. We believe that our strategy may solve the issues related to energy and environment, said Dr Balaraman.

The research team included Garima Jaiswal, Vinod G Landge, D Jagadeesan & E Balaraman. The study was funded by Science and Engineering Research Board (SERB) of the Department of Science and Technology (DST) under its start-up grant for young scientists. (India Science Wire)

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OnePlus Freedom Sale 2026 brings discounts on 15, 15R, 13, Nord 5 and tablets

OnePlus Freedom Sale 2026 begins Jan 16 with discounts on phones, tablets, and audio products across online and offline stores.

Published

2 days ago

January 13, 2026

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OnePlus has announced its Freedom Sale, offering discounts on smartphones, tablets, and audio products across online and offline platforms. The deals include the recently launched OnePlus 15 series, Nord lineup, Buds audio devices, and other gadgets.

When and where to shop

The OnePlus Freedom Sale starts on Jan. 16 and will run both online and offline. Shoppers can purchase smartphones through OnePlus.in, OnePlus Experience Stores, Amazon, as well as offline retailers including Croma, Reliance Digital, Vijay Sales, and others. Tablets are available on Flipkart during the sale period.

Discounts on OnePlus smartphones

OnePlus 15: Launched at Rs 72,999, buyers can get an instant Rs 4,000 discount, lowering the effective price to Rs 68,999. Additional benefits include six months of no-cost EMI and a bundled OnePlus Nord Buds 3.
OnePlus 13: Originally priced at Rs 69,999, the phone receives an Rs 8,000 price drop, plus a bank discount of Rs 4,000, bringing the price down to Rs 57,999.
OnePlus 15R: Listed at Rs 47,999, buyers can avail Rs 3,000 off until Jan 26. After the date, the effective price is Rs 45,999.
OnePlus 13R: Launched at Rs 42,999, this device gets up to Rs 6,000 price cut and an additional Rs 1,000 bank discount.

Discounts on OnePlus tablets

OnePlus Pad 2: Rs 2,000 instant bank discount reduces the price to Rs 34,999.
OnePlus Pad 3: Eligible for a Rs 3,000 instant discount, making the price Rs 44,999. Purchases until Jan 26 include a free Stylo 2 stylus.
OnePlus Pad Go 2: Rs 1,000 price drop plus Rs 2,000 bank discount, now Rs 23,999.
OnePlus Pad Go: Price reduced to Rs 13,999 after Rs 3,000 cut and Rs 1,000 bank discount.
OnePlus Pad Lite: Available for Rs 11,999 after a Rs 2,000 price drop and Rs 2,000 bank discount.

Audio devices on offer

OnePlus Buds 4: Rs 700 price cut with Rs 300 bank discount, bringing the effective price to Rs 4,999.
OnePlus Buds Pro 3: Now Rs 9,999 after Rs 1,000 price drop and Rs 1,000 bank discount. No-cost EMI options are available for both Buds 4 and Buds Pro 3.

Additional discounts are also applicable to the Nord Buds series — including Nord Buds 3, Nord Buds 3 Pro, and Nord Buds 3R — and neckband devices such as Bullets Wireless Z2 ANC and Bullets Wireless Z3.

Gadgets

Oppo Reno 15 likely to launch in India soon with upgraded camera and performance features

Oppo is preparing to launch the Reno 15 series in India, focusing on camera improvements, performance stability and a refined design. Here’s what to expect from its pricing and features.

Published

1 month ago

December 8, 2025

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Oppo is gearing up to introduce its Reno 15 lineup in India, with the series expected to focus heavily on enhanced imaging, performance stability and creator-friendly tools. The smartphone, which has already been launched in China, is anticipated to reach the Indian market in the coming weeks although the company has not yet shared an official date.

Expected price range in India

Industry estimates suggest the standard Oppo Reno 15 will fall in the upper-mid price bracket. While the Reno 15 Pro was launched in China at CNY 3,699 (roughly Rs 46,000), the Reno 15 base model is expected to be more affordable, likely between Rs 32,000 and Rs 38,000, depending on RAM and storage configurations.

Expected features and specifications

The Reno 15 series is expected to highlight Oppo’s improvements in sustained performance, camera capabilities and thermal management. Globally, the models run on ColorOS 16 and feature advanced cooling, particularly aimed at gaming and continuous live-streaming use.

For India, the upcoming Oppo Reno 15 is likely to offer:

A high-refresh-rate AMOLED display
Triple-camera setup with a primary sensor optimized for better low-light clarity
Secondary wide-angle and portrait cameras
Front camera with autofocus and AI-led enhancements for live streaming
Around 5,000mAh battery with fast wired charging support
AI-driven system optimization for smoother long-term performance

Design-wise, it is expected to follow the Reno 15 Pro’s flat-frame style, offering a slim profile, improved durability and brighter display output. With growing demand for creator-focused smartphones in the country, the Reno 15 is being positioned for users interested in mobile photography, vlogging and gaming.

Gadgets

Samsung Galaxy S25 FE India price leak suggests launch similar to S24 FE

Samsung Galaxy S25 FE India price has surfaced online, hinting at a similar launch price as the S24 FE. The phone brings a 6.7-inch AMOLED display, Exynos 2400 chip, triple rear cameras, and a 4,900mAh battery.

Published

4 months ago

September 11, 2025

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Samsung Galaxy S25 FE, which was unveiled globally on September 4, is yet to receive official pricing for the Indian market. However, a fresh leak indicates that the handset could debut in India at the same price point as its predecessor, the Galaxy S24 FE.

Expected price and availability in India

According to tipster Yogesh Brar, the Samsung Galaxy S25 FE may be priced at ₹59,999 for the base 8GB RAM + 128GB storage variant in India. This matches the launch price of last year’s Galaxy S24 FE, which started at ₹59,999 for the same configuration. The higher 8GB RAM + 256GB model of the S24 FE was earlier priced at ₹65,999.

Globally, the Galaxy S25 FE has been introduced at $650 (around ₹58,000) for the base variant and $710 (around ₹63,000) for the 8GB + 256GB version. In India, the smartphone is expected to go on sale in October, similar to last year’s rollout schedule for the S24 FE.

The phone is offered in Icyblue, Jetblack, Navy, and White colour options.

Key specifications

Display: 6.7-inch full-HD+ Dynamic AMOLED 2X, 120Hz refresh rate, 1,900 nits peak brightness, Vision Booster, Gorilla Glass Victus+ protection.
Processor: Exynos 2400 SoC.
RAM & Storage: 8GB RAM standard, up to 512GB UFS 4.0 storage.
Rear Cameras: 50MP wide-angle + 8MP telephoto + 12MP ultrawide; 8K video recording at 30fps.
Front Camera: 12MP selfie shooter.
Battery: 4,900mAh with 45W wired and 15W wireless charging.
Build: 7.4mm thick, 190g weight, IP68-rated water and dust resistance.
Cooling: 10% larger vapour chamber compared to the Galaxy S24 FE.