Advances in carbon capture and conversion technology

Overview

For decades, carbon capture has faced a fundamental problem: systems designed to grab CO2 from industrial exhaust typically require a pure, concentrated stream of the gas to function. Real-world flue gas—the exhaust from power plants and factories—is a messy cocktail of nitrogen, oxygen, and trace pollutants. Most conversion technologies simply cannot handle it.

A team at South Korea's KENTECH has now demonstrated an electrode that captures and converts diluted CO2 in a single step, producing formic acid directly from simulated industrial exhaust containing just 15% CO2. The three-layer electrode performed where competing systems failed entirely—and even worked at atmospheric CO2 concentrations around 400 parts per million. The advance transforms the economics: instead of paying to separate CO2 before converting it, industrial emitters could potentially produce a $700-million-per-year commodity chemical directly from their smokestacks.

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Key Indicators

40%

Efficiency Improvement

The new electrode outperformed existing carbon-converting electrodes in pure CO2 tests

15%

CO2 in Test Gas

The electrode functioned in simulated flue gas, where competing systems produced negligible output

400 ppm

Atmospheric Operation

The system captured and converted CO2 at current ambient air concentrations

$692M

Global Formic Acid Market

Annual market size projected for 2025, growing at 4.6% annually through 2032

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People Involved

Wonyong Choi

Active researcher; named Highly Cited Researcher for seventh consecutive year (2019-2025)

Donglai Pan

Active researcher

Organizations Involved

Korea Institute of Energy Technology (KENTECH)

Research University

Primary research institution for this breakthrough

South Korea's first university dedicated entirely to energy research, established to accelerate the country's transition to carbon neutrality.

American Chemical Society (ACS)

Scientific Publisher and Professional Organization

Published research in ACS Energy Letters; issued press release highlighting significance

The world's largest scientific society, which publishes peer-reviewed chemistry journals and selected this research for public communication.

Timeline

KENTECH Electrode Converts Diluted CO2 in Single Step
Research

Researchers published a three-layer electrode design that captures CO2 from simulated industrial exhaust and converts it directly to formic acid—functioning where existing systems fail entirely.
January 29th, 2026
UNIST System Cuts CO2 Conversion Energy by 75%
Research

Korean researchers at UNIST unveiled an electrochemical system that converts CO2 to formic acid while reducing energy consumption by nearly 75% and tripling production rates compared to existing methods.
November 1st, 2025
Norway Launches World's Largest Industrial Carbon Capture Operation
Industry Milestone

Norway began full-scale operations of the world's largest industrial carbon capture facility, including capture from a cement plant—one of the hardest industrial sectors to decarbonize.
June 1st, 2025
America's First Commercial Direct Air Capture Facility Opens
Industry Milestone

Heirloom opened a facility in Tracy, California capable of capturing 1,000 tonnes of CO2 annually and storing it permanently in concrete—the first U.S. plant to sell carbon removal credits.
November 9th, 2023
NREL Demonstrates Scalable CO2-to-Formic Acid Architecture
Research

The National Renewable Energy Laboratory published a membrane electrode assembly design achieving stable, high-selectivity formic acid production using commercially available components.
November 1st, 2023
Orca Plant Begins Large-Scale Direct Air Capture with Storage
Industry Milestone

Climeworks launched Orca in Iceland, the first facility to both capture CO2 from air and permanently store it underground, with capacity of 4,000 tonnes per year.
September 8th, 2021
Climeworks Opens World's First Commercial Direct Air Capture Plant
Industry Milestone

Swiss company Climeworks launched a facility in Hinwil capturing 900 tonnes of CO2 per year from ambient air, proving direct air capture technology could work at commercial scale.
May 1st, 2017
Stanford Research Links Tin Oxide to CO2 Conversion Efficiency
Research

Stanford researchers demonstrated that tin oxide layers on electrodes dramatically improve CO2-to-formic acid conversion, establishing the catalyst foundation used in subsequent breakthroughs.
January 1st, 2012
Sleipner Becomes World's First Industrial CCS Project
Industry Milestone

Norway's Sleipner gas field began injecting CO2 into a saline aquifer beneath the North Sea—the first commercial carbon capture and storage project designed for emissions abatement rather than oil recovery.
September 15th, 1996
First Large-Scale CO2 Pipeline in Texas
Infrastructure

Natural gas processing plants in West Texas began supplying CO2 through the first large-scale pipeline for enhanced oil recovery, demonstrating industrial-scale carbon handling.
January 1st, 1972
First Electrochemical CO2 Reduction Demonstrated
Scientific Milestone

French chemist J. Royer first reported reducing carbon dioxide to formic acid using a zinc anode, establishing the fundamental chemistry that researchers still build upon today.
January 1st, 1870

Scenarios

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Predictions leaderboard

Industrial Pilot Plants Demonstrate Commercial Viability by 2030

KIST has announced plans to complete a 100-kilogram-per-day pilot plant by 2025, with process verification leading to potential commercialization by 2030. If the KENTECH electrode architecture can be scaled while maintaining its performance advantage in diluted CO2 streams, industrial facilities could begin retrofitting smokestacks with integrated capture-conversion systems. The key variable is whether the technology maintains its efficiency edge at industrial scales with real—not simulated—flue gas containing trace impurities.

Discussed by: Korea Institute of Science and Technology (KIST) researchers in technoeconomic analyses; industry analysts covering the CO2 utilization sector

Consensus —

Cost Parity with Fossil-Derived Formic Acid Achieved

NREL researchers have identified pathways to cost parity with conventional formic acid production when renewable electricity costs fall to 2.3 cents per kilowatt-hour or below. As solar and wind costs continue declining, electrochemical CO2 conversion could become economically competitive without subsidies. This would transform carbon capture from a compliance cost into a profit center, potentially accelerating adoption across heavy industry.

Discussed by: National Renewable Energy Laboratory (NREL) technoeconomic analyses; Angewandte Chemie scale-up studies

Consensus —

Hydrogen Economy Drives Formic Acid Demand Surge

Formic acid stores hydrogen at higher volumetric density than 700-bar compressed tanks—the current industry standard. If hydrogen fuel cell vehicles and industrial applications scale as projected, demand for safe, liquid hydrogen carriers could multiply. Formic acid produced from captured CO2 would offer both the storage medium and a carbon-negative production pathway, potentially creating a multi-billion-dollar market that does not currently exist at scale.

Discussed by: Energy analysts at VoltaChem consortium; fuel cell researchers; International Energy Agency hydrogen reports

Consensus —

Technical Barriers Stall Scale-Up Beyond Laboratory

The gap between laboratory demonstration and commercial deployment has proven difficult to bridge for electrochemical CO2 conversion. Catalyst degradation, electrode fouling from real-world impurities, and the challenge of stacking multiple cells for industrial output could limit the technology to niche applications. The KENTECH advance may remain a scientific achievement that does not translate to widespread deployment if manufacturing and durability challenges prove intractable.

Discussed by: ACS Environmental Science & Technology Letters reviews; academic researchers documenting scale-up challenges

Consensus —

Historical Context

Sleipner CCS Project (1996)

September 1996 - Present

What Happened

Norway's Sleipner gas field began injecting CO2 separated from natural gas production into a sandstone formation beneath the North Sea. The project was motivated by Norway's 1991 carbon tax, which made storage cheaper than venting. Over 23 million tonnes of CO2 have been stored through a single well.

Outcome

Short Term

Proved that large-scale CO2 injection into geological formations was technically feasible and that stored CO2 behaved predictably underground.

Long Term

Became the global reference case for carbon storage, informing regulations and providing the monitoring data that subsequent projects rely upon. However, it also showed that carbon capture remained limited to facilities with concentrated CO2 streams—the dilution problem the KENTECH research addresses.

Why It's Relevant Today

Sleipner demonstrated storage works, but required separating CO2 first. The KENTECH electrode potentially eliminates that separation step, addressing the economic barrier that has limited capture technology deployment for three decades.

Haber-Bosch Process Commercialization (1913)

1909-1913

What Happened

German chemists Fritz Haber and Carl Bosch developed a method to synthesize ammonia from nitrogen and hydrogen at industrial scale. The process required high pressures and temperatures that seemed impractical until Bosch engineered equipment capable of sustained operation. Within decades, synthetic fertilizers transformed global agriculture.

Outcome

Short Term

BASF built the first commercial plant in 1913, producing 30 tonnes of ammonia daily. The process enabled Germany to produce explosives during World War I despite being cut off from natural nitrate sources.

Long Term

The Haber-Bosch process now produces fertilizer supporting roughly half of global food production. It demonstrated how industrial chemistry can transform atmospheric gases into foundational commodities.

Why It's Relevant Today

Like Haber-Bosch converted atmospheric nitrogen into useful chemicals, CO2 conversion technology aims to transform waste emissions into valuable products. Both required solving engineering challenges that initially seemed insurmountable at industrial scale.

Solar Photovoltaic Cost Collapse (2008-2024)

2008-2024

What Happened

Solar panel costs fell from roughly $4 per watt in 2008 to under $0.20 per watt by 2024—a 95% decline driven by manufacturing scale, incremental improvements, and competition. Technology that seemed economically marginal became the cheapest source of electricity in most of the world.

Outcome

Short Term

Early government subsidies in Germany and feed-in tariffs in multiple countries created initial market demand that drove manufacturing scale.

Long Term

Solar became cost-competitive without subsidies, deployment accelerated exponentially, and the technology reshaped energy planning worldwide. Electricity costs fell low enough to enable electrification of previously fossil-dependent processes.

Why It's Relevant Today

Electrochemical CO2 conversion currently faces the same economic challenge solar faced in 2008—technically proven but too expensive to compete. NREL analysis suggests cost parity is achievable at renewable electricity prices of 2.3 cents per kilowatt-hour, a threshold approaching in favorable locations.